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Parasitic Inductance Impact of a High-Turn-Ratio Half Bridge Active Clamped Converter for More-Electric Aircraft Applications (2024)
Presentation / Conference Contribution
Zhu, Y., Yang, T., Wang, Z., Yan, X., Bozhko, S., & Wheeler, P. (2024). Parasitic Inductance Impact of a High-Turn-Ratio Half Bridge Active Clamped Converter for More-Electric Aircraft Applications. In 2024 IEEE Applied Power Electronics Conference and Exposition (APEC) (2226-2231). https://doi.org/10.1109/APEC48139.2024.10509461

Within a More-Electric Aircraft (MEA) dc power distribution system, Half-Bridge-Active-Clamped (HBAC) converters can be used to control the power transfer between different dc buses, for example, between +/-270V to 28V dc buses. However, due to the r... Read More about Parasitic Inductance Impact of a High-Turn-Ratio Half Bridge Active Clamped Converter for More-Electric Aircraft Applications.

Power Flow Analysis of Advanced Power Generation Centre for More Electric Aircraft (2023)
Presentation / Conference Contribution
Bai, G., Bozhko, S., Yang, T., Wheeler, P., & Yeoh, S. S. (2023). Power Flow Analysis of Advanced Power Generation Centre for More Electric Aircraft. . https://doi.org/10.1109/itecasia-pacific59272.2023.10372301

The more-electric aircraft (MEA) has been seen as the most major trend in the aerospace industry. With the increase in electrified loads, there is the need to generate more electrical power on-board aircraft. Considering regional jet sized aircraft,... Read More about Power Flow Analysis of Advanced Power Generation Centre for More Electric Aircraft.

Modelling and Sizing Framework for Hybrid-Electric Aircraft Architecture Development (2023)
Presentation / Conference Contribution
Wise, A., Kolisnichenko, A., Bozhko, S., Sumsurooah, S., & Yeoh, S. (2023). Modelling and Sizing Framework for Hybrid-Electric Aircraft Architecture Development. In ITEC Asia-Pacific 2023 - 2023 IEEE Transportation Electrification Conference and Expo, Asia-Pacific. https://doi.org/10.1109/itecasia-pacific59272.2023.10372367

This project aims to develop an electrical system for a hybrid-electric, regional aircraft as part of the drive towards more sustainable transportation. It wants to reduce the aviation industry's contribution to carbon emissions, looking at more gree... Read More about Modelling and Sizing Framework for Hybrid-Electric Aircraft Architecture Development.

A Low-Complexity Artificial Neural Network-Based Optimal Droop Gain Design Strategy for DC Microgrids Onboard the More Electric Aircraft (2023)
Journal Article
Hussaini, H., Yang, T., Bai, G., Urrutia-Ortiz, M., & Bozhko, S. (2023). A Low-Complexity Artificial Neural Network-Based Optimal Droop Gain Design Strategy for DC Microgrids Onboard the More Electric Aircraft. IEEE Transactions on Transportation Electrification, https://doi.org/10.1109/TTE.2023.3333270

This article proposes a new droop control design method based on a “reversed data training” of artificial neural network (ANN). Conventionally, after data collection, the ANN is used for forward mapping the control variables (inputs) and system respo... Read More about A Low-Complexity Artificial Neural Network-Based Optimal Droop Gain Design Strategy for DC Microgrids Onboard the More Electric Aircraft.

Design Analysis of SiC-MOSFET Based Bidirectional SSPC for Aircraft High Voltage DC Distribution Network (2023)
Journal Article
A. Khera, F., Bozhko, S., & Wheeler, P. (2023). Design Analysis of SiC-MOSFET Based Bidirectional SSPC for Aircraft High Voltage DC Distribution Network. IEEE Access, 11, 113900-13912. https://doi.org/10.1109/ACCESS.2023.3323599

Research on electric power systems (EPSs) for the aviation industry has recently grown significantly due to the need to reduce global CO2 emissions from transportation. To fulfill the power requirements of a more electric aircraft (MEA), DC power dis... Read More about Design Analysis of SiC-MOSFET Based Bidirectional SSPC for Aircraft High Voltage DC Distribution Network.

An Advanced Dual-Carrier-Based Multi-Optimized PWM Strategy of Three-Level Neutral-Point-Clamped Converters for More-Electric-Aircraft Applications (2023)
Journal Article
Guo, F., M. Diab, A., Shen Yeoh, S., Yang, T., Bozhko, S., Wheeler, P., & Zhao, Y. (2024). An Advanced Dual-Carrier-Based Multi-Optimized PWM Strategy of Three-Level Neutral-Point-Clamped Converters for More-Electric-Aircraft Applications. IEEE Transactions on Energy Conversion, 39(1), 356-367. https://doi.org/10.1109/TEC.2023.3312599

Since three-level neutral-point-clamped (3L-NPC) power generation units bring much competitiveness to the next-generation electric starter/generator (ESG) system for more-electric-aircraft (MEA) applications, the versatile multi-optimized pulse-width... Read More about An Advanced Dual-Carrier-Based Multi-Optimized PWM Strategy of Three-Level Neutral-Point-Clamped Converters for More-Electric-Aircraft Applications.

Control Strategy of Advanced Power Generation Architecture for More-Electric Aircraft Applications (2023)
Presentation / Conference Contribution
Bai, G., Yang, T., Yeoh, S. S., Bozhko, S., & Wheeler, P. (2023). Control Strategy of Advanced Power Generation Architecture for More-Electric Aircraft Applications. In 2023 IEEE Workshop on Power Electronics for Aerospace Applications (PEASA). https://doi.org/10.1109/PEASA58318.2023.10235443

To meet the increasing electrical power demand on More Electrical Aircraft (MEA), an advanced power generation architecture (APGA) is proposed. Within the APGA, both two generators produce electrical power and feed loads to the main DC bus through th... Read More about Control Strategy of Advanced Power Generation Architecture for More-Electric Aircraft Applications.

Dual Phase Shift Modulation Investigation of Half-Bridge-Active-Clamp Converter for Future Electrified Aircraft Applications (2023)
Presentation / Conference Contribution
Yan, X., Zhu, Y., Wang, Z., Yang, T., Bozhko, S., & Wheeler, P. (2023). Dual Phase Shift Modulation Investigation of Half-Bridge-Active-Clamp Converter for Future Electrified Aircraft Applications. In 2023 IEEE Workshop on Power Electronics for Aerospace Applications (PEASA). https://doi.org/10.1109/PEASA58318.2023.10235704

Half bridge active clamp (HBAC) converter is designed for the achievement of a wider voltage conversion range, and it is employed to interface the power transfer between the high voltage and low voltage DC buses in future electrified aircraft applica... Read More about Dual Phase Shift Modulation Investigation of Half-Bridge-Active-Clamp Converter for Future Electrified Aircraft Applications.

Artificial Intelligence-Based Hierarchical Control Design for Current Sharing and Voltage Restoration in DC Microgrid of the More Electric Aircraft (2023)
Journal Article
Hussaini, H., Yang, T., Bai, G., Urrutia-Ortiz, M., & Bozhko, S. (2024). Artificial Intelligence-Based Hierarchical Control Design for Current Sharing and Voltage Restoration in DC Microgrid of the More Electric Aircraft. IEEE Transactions on Transportation Electrification, 10(1), 566-582. https://doi.org/10.1109/tte.2023.3289773

In the conventional droop control method employed in the primary control layer, there is an inherent tradeoff between current-sharing accuracy and voltage regulation. Consequently, to achieve both accurate current sharing and maintain the bus voltage... Read More about Artificial Intelligence-Based Hierarchical Control Design for Current Sharing and Voltage Restoration in DC Microgrid of the More Electric Aircraft.

Dynamic Average Consensus with Anti-windup applied to Interlinking Converters in AC/DC Microgrids under Economic Dispatch and Delays (2023)
Journal Article
Martinez-Gomez, M., Orchard, M. E., & Bozhko, S. (2023). Dynamic Average Consensus with Anti-windup applied to Interlinking Converters in AC/DC Microgrids under Economic Dispatch and Delays. IEEE Transactions on Smart Grid, 14(5), 4137-4140. https://doi.org/10.1109/tsg.2023.3291208

This work proposes an application of dynamic average consensus in interlinking converters of AC/DC microgrids with a distributed anti-windup for dealing with steady-state errors from communication delays. The proposed controller consists of a PI cont... Read More about Dynamic Average Consensus with Anti-windup applied to Interlinking Converters in AC/DC Microgrids under Economic Dispatch and Delays.

Simplified Modelling and Control of Dual Active Bridge Converter for Future Electrified Aerospace Application (2023)
Presentation / Conference Contribution
Yan, X., Zhu, Y., Wang, Z., Yang, T., Bozhko, S., & Wheeler, P. (2023). Simplified Modelling and Control of Dual Active Bridge Converter for Future Electrified Aerospace Application. In 2023 IEEE International Conference on Electrical Systems for Aircraft, Railway, Ship Propulsion and Road Vehicles & International Transportation Electrification Conference (ESARS-ITEC). https://doi.org/10.1109/ESARS-ITEC57127.2023.10114863

Dual active bridge converter (DAB) is an important power electronics in the DC distribution system of electric aircraft. It is used to convert generated high DC voltage to lower DC voltage, and it can be used between battery and low voltage bus to st... Read More about Simplified Modelling and Control of Dual Active Bridge Converter for Future Electrified Aerospace Application.

Optimal Droop Control Design Using Artificial Intelligent Techniques for Electric Power Systems of More-Electric Aircraft (2023)
Journal Article
Hussaini, H., Yang, T., Gao, Y., Wang, C., Urrutia, M., & Bozhko, S. (2024). Optimal Droop Control Design Using Artificial Intelligent Techniques for Electric Power Systems of More-Electric Aircraft. IEEE Transactions on Transportation Electrification, 10(1), 2192-2206. https://doi.org/10.1109/tte.2023.3271763

The design of the droop coefficient is one of the challenges for the droop control of converters, as it plays a key role in enhancing the performance of the droop control method. This article proposes an artificial neural network (ANN) based techniqu... Read More about Optimal Droop Control Design Using Artificial Intelligent Techniques for Electric Power Systems of More-Electric Aircraft.

Optimised architecture design for an MEA power distribution system considering load profile and fault-tolerance (2023)
Presentation / Conference Contribution
Wang, X., Atkin, J., Yeoh, S., & Bozhko, S. (2023). Optimised architecture design for an MEA power distribution system considering load profile and fault-tolerance. . https://doi.org/10.1109/esars-itec57127.2023.10114839

With the development of More Electric Aircraft (MEA), novel power distribution systems (PDSs) are required to meet significantly increased electrical load demands onboard. Nevertheless, newer designs must comply with the strict flight operational and... Read More about Optimised architecture design for an MEA power distribution system considering load profile and fault-tolerance.

An Advanced Power Generation Architecture for More-Electric Aircraft Applications (2023)
Presentation / Conference Contribution
Bai, G., Yang, T., Yeoh, S. S., Bozhko, S., & Wheeler, P. (2023). An Advanced Power Generation Architecture for More-Electric Aircraft Applications. . https://doi.org/10.1109/esars-itec57127.2023.10114848

The trend towards development of More Electric Aircraft (MEA) has been driven by increased fuel fossil prices and stricter environmental policies. With breakthroughs in power electronic systems and electrical machines, the targets of MEA to reduce th... Read More about An Advanced Power Generation Architecture for More-Electric Aircraft Applications.

Enhanced Starting Control Scheme for PMM-Based Starter/Generator System for MEA (2023)
Journal Article
Mohamed, M. A. A., Shen Yeoh, S., Atkin, J., Diab, A. M., Khalaf, M., & Bozhko, S. (2023). Enhanced Starting Control Scheme for PMM-Based Starter/Generator System for MEA. Aerospace, 10(2), Article 168. https://doi.org/10.3390/aerospace10020168

A control approach for aircraft Starter/Generator (S/G) with Permanent Magnet Machine (PMM) operating in Flux Weakening (FW) mode is presented. The proposed strategy helps the previous approaches which are adopted for the Variable Voltage Bus (VVB) o... Read More about Enhanced Starting Control Scheme for PMM-Based Starter/Generator System for MEA.

Sliding Mode Input Current Control of the Synchronous DC-DC Buck Converter for Electro-Mechanical Actuator Emulation in More Electric Aircrafts (2022)
Journal Article
Salimi, M., Klumpner, C., & Bozhko, S. (2022). Sliding Mode Input Current Control of the Synchronous DC-DC Buck Converter for Electro-Mechanical Actuator Emulation in More Electric Aircrafts. Energies, 15(24), Article 9628. https://doi.org/10.3390/en15249628

The main challenges of the input current control in synchronous DC-DC buck converters are the nonlinear model of the system, changes of the operating point in a wide range, and the need to use an input LC filter for current smoothing, which may resul... Read More about Sliding Mode Input Current Control of the Synchronous DC-DC Buck Converter for Electro-Mechanical Actuator Emulation in More Electric Aircrafts.

Performance Analysis of Complex Vector Discrete Current Controller for High-Speed Permanent Magnet Machines (2022)
Presentation / Conference Contribution
Diab, A. M., Aboelhassan, A., Wang, S., Guo, F., Yeoh, S. S., Bozhko, S., …Galea, M. (2022). Performance Analysis of Complex Vector Discrete Current Controller for High-Speed Permanent Magnet Machines. In Proceedings of IEEE 17th Conference on Industrial Electronics and Applications (ICIEA) (590-595). https://doi.org/10.1109/ICIEA54703.2022.10005975

Discrete synchronous reference frame proportional integral Current Controller (CC) delivers superior control performance for high-speed drives due to its ability to accurately compensate for cross-coupling terms. Complete compensation can only be ach... Read More about Performance Analysis of Complex Vector Discrete Current Controller for High-Speed Permanent Magnet Machines.

AC/DC Converter Topologies Comparison for More Electric Aircraft Applications (2022)
Presentation / Conference Contribution
Khera, F. A., Gerada, C., Bozhko, S., & Wheeler, P. W. (2022). AC/DC Converter Topologies Comparison for More Electric Aircraft Applications. In 2022 IEEE 7th Southern Power Electronics Conference (SPEC). https://doi.org/10.1109/SPEC55080.2022.10058465

This paper compares the potential AC/DC power converter topologies that are appropriate for medium voltage and medium/high power aircraft applications. The power converter's rated power and the DC distribution voltage level in this application assume... Read More about AC/DC Converter Topologies Comparison for More Electric Aircraft Applications.

Inverse application of artificial intelligence for the control of power converters (2022)
Journal Article
Gao, Y., Wang, S., Hussaini, H., Yang, T., Dragicevic, T., Bozhko, S., …Vazquez, S. (2022). Inverse application of artificial intelligence for the control of power converters. IEEE Transactions on Power Electronics, https://doi.org/10.1109/TPEL.2022.3209093

This paper proposes a novel application method, Inverse Application of Artificial Intelligence (IAAI) for the control of power electronic converter systems. The proposed method can give the desired control coefficients/references in a simple way beca... Read More about Inverse application of artificial intelligence for the control of power converters.

Comparative Stability Analysis of Synchronous Reference Frame Current Controllers Operated at High Fundamental Frequency (2022)
Journal Article
Diab, A. M., Guo, F., Yeoh, S. S., Bozhko, S., Gerada, C., & Galea, M. (2022). Comparative Stability Analysis of Synchronous Reference Frame Current Controllers Operated at High Fundamental Frequency. IEEE Transactions on Transportation Electrification, 9(2), 2115 - 2128. https://doi.org/10.1109/TTE.2022.3208825

Synchronous reference frame (SRF) proportional-integral (PI) current controller (CC) is the most well-established solution for current regulation in AC machine drives and grid-connected voltage source converters. The design of high dynamic performanc... Read More about Comparative Stability Analysis of Synchronous Reference Frame Current Controllers Operated at High Fundamental Frequency.

Speed/Torque Ripple Reduction of High-speed Permanent Magnet Starters/Generators with Low Inductance for More Electric Aircraft Applications (2022)
Journal Article
Zhang, X., Yang, T., & Bozhko, S. (2022). Speed/Torque Ripple Reduction of High-speed Permanent Magnet Starters/Generators with Low Inductance for More Electric Aircraft Applications. IEEE Transactions on Transportation Electrification, 8, 4431-4443. https://doi.org/10.1109/TTE.2022.3194972

With the electrification trend of future aircraft, high-speed Permanent Magnet Starters/Generators (PMS/Gs) will potentially be widely used in onboard generation systems due to their high power density and high efficiency. However, the per-unit react... Read More about Speed/Torque Ripple Reduction of High-speed Permanent Magnet Starters/Generators with Low Inductance for More Electric Aircraft Applications.

Hybrid Active Modulation Strategy for Three-Level Neutral-Point-Clamped Converters in High-Speed Aerospace Drives (2022)
Journal Article
Guo, F., Yang, T., Diab, A. M., Huang, Z., Yeoh, S. S., Bozhko, S., & Wheeler, P. (2023). Hybrid Active Modulation Strategy for Three-Level Neutral-Point-Clamped Converters in High-Speed Aerospace Drives. IEEE Transactions on Industrial Electronics, 70(4), 3449-3460. https://doi.org/10.1109/tie.2022.3176309

In the aircraft electric starter/generator system, the three-level neutral-point-clamped converters play a crucial role in driving turbofan engines and delivering onboard electrical power. However, the conventional pulsewidth modulation (PWM) strateg... Read More about Hybrid Active Modulation Strategy for Three-Level Neutral-Point-Clamped Converters in High-Speed Aerospace Drives.

Efficiency Focused Energy Management Strategy Based on Optimal Droop Gain Design for More Electric Aircraft (2022)
Journal Article
Mohamed, M. A., Yeoh, S. S., Atkin, J., Hussaini, H., & Bozhko, S. (2022). Efficiency Focused Energy Management Strategy Based on Optimal Droop Gain Design for More Electric Aircraft. IEEE Transactions on Transportation Electrification, 8, 4205-4218. https://doi.org/10.1109/tte.2022.3159731

Due to the substantial increase of the number of electrically-driven systems on-board More Electric Aircraft (MEA), the on-board Electric Power Systems (EPS) are becoming more and more complex. Therefore, there is a need to develop a control strategy... Read More about Efficiency Focused Energy Management Strategy Based on Optimal Droop Gain Design for More Electric Aircraft.

Development of a smart supercapacitor energy storage system for aircraft electric power systems (2021)
Journal Article
Fares, A. M., Kippke, M., Rashed, M., Klumpner, C., & Bozhko, S. (2021). Development of a smart supercapacitor energy storage system for aircraft electric power systems. Energies, 14(23), Article 8056. https://doi.org/10.3390/en14238056

This paper presents the development of a supercapacitor energy storage system (ESS) aimed to minimize weight, which is very important for aerospace applications, whilst integrating smart functionalities like voltage monitoring, equalization, and over... Read More about Development of a smart supercapacitor energy storage system for aircraft electric power systems.

An Enhanced Droop Control Method for multi-source Electric Power System of More Electric Aircraft (2021)
Presentation / Conference Contribution
Hussaini, H., Yang, T., Wang, C., & Bozho, S. (2021, October). An Enhanced Droop Control Method for multi-source Electric Power System of More Electric Aircraft. Paper presented at MEA2021, Bordeaux, France

The more electric aircraft concept has been identified as the major trend of future aircraft. The DC distribution network where multiple electrical sources are connected to a common HVDC bus is a promising architecture for more electric aircraft appl... Read More about An Enhanced Droop Control Method for multi-source Electric Power System of More Electric Aircraft.

A Simple PWM Strategy for Three-Level NPC Converters in Aircraft Electric Starter/Generator System With Improved DC-Link Voltage Utilization and Reduced Common-Mode Voltage (2021)
Presentation / Conference Contribution
Guo, F., Yang, T., Yeoh, S. S., Bozhko, S., Wheeler, P., & Diab, A. M. (2021). A Simple PWM Strategy for Three-Level NPC Converters in Aircraft Electric Starter/Generator System With Improved DC-Link Voltage Utilization and Reduced Common-Mode Voltage. . https://doi.org/10.1109/ECCE47101.2021.9595933

Due to the employment of three-level neutral-point-clamped (3L-NPC) converters in the aircraft electric starter/generator (ESG) systems, the pulse-width-modulation (PWM) strategy plays a significant role in the converter-fed PMSM drives. However, the... Read More about A Simple PWM Strategy for Three-Level NPC Converters in Aircraft Electric Starter/Generator System With Improved DC-Link Voltage Utilization and Reduced Common-Mode Voltage.

Analysis and Design of Battery Controller for More Electric Aircraft Application (2021)
Presentation / Conference Contribution
Mohamed, M. A. A., Yeoh, S., Atkin, J., Khalaf, M., & Bozhko, S. (2021). Analysis and Design of Battery Controller for More Electric Aircraft Application. . https://doi.org/10.1109/IPRECON52453.2021.9640691

This paper deals with innovative multi-function battery controller with seamless transition between controllers for future MEA platforms. The battery controller performs different functions i.e. providing DC power, maintaining DC bus voltage, control... Read More about Analysis and Design of Battery Controller for More Electric Aircraft Application.

Neural Network aided PMSM multi-objective design and optimization for more-electric aircraft applications (2021)
Journal Article
Gao, Y., Yang, T., Bozhko, S., Wheeler, P., Dragicevic, T.-L., & Gerada, C. (2022). Neural Network aided PMSM multi-objective design and optimization for more-electric aircraft applications. Chinese Journal of Aeronautics, 35(10), 233-246. https://doi.org/10.1016/j.cja.2021.08.006

This study uses the Neural Network (NN) technique to optimize design of surface-mounted Permanent Magnet Synchronous Motors (PMSMs) for More-Electric Aircraft (MEA) applications. The key role of NN is to provide dedicated correction factors for the a... Read More about Neural Network aided PMSM multi-objective design and optimization for more-electric aircraft applications.

An Overmodulation Algorithm With Neutral-Point Voltage Balancing for Three-Level Converters in High-Speed Aerospace Drives (2021)
Journal Article
Guo, F., Yang, T., Diab, A. M., Yeoh, S. S., Li, C., Bozhko, S., & Wheeler, P. (2022). An Overmodulation Algorithm With Neutral-Point Voltage Balancing for Three-Level Converters in High-Speed Aerospace Drives. IEEE Transactions on Power Electronics, 37(2), 2021-2032. https://doi.org/10.1109/tpel.2021.3105752

In this article, a virtual space vector based overmodulation algorithm is presented for three-level neutral-point (NP) clamped converters in high-speed aerospace motor drives. With the proposed inscribed polygonal-boundary compression technique, the... Read More about An Overmodulation Algorithm With Neutral-Point Voltage Balancing for Three-Level Converters in High-Speed Aerospace Drives.

An enhanced feedforward flux weakening control for high-speed permanent magnet machine drive applications (2021)
Journal Article
Lang, X., Yang, T., Li, C., Yeoh, S. S., Bozhko, S., & Wheeler, P. (2021). An enhanced feedforward flux weakening control for high-speed permanent magnet machine drive applications. IET Power Electronics, 14(13), 2179-2193. https://doi.org/10.1049/pel2.12170

Permanent magnet machines have been used in the high-speed drive applications due to their high-efficiency, high-power-density, and wide-speed range characteristics. However, control of such high-speed permanent magnet machines machine is always chal... Read More about An enhanced feedforward flux weakening control for high-speed permanent magnet machine drive applications.

Using DC-DC Converters as Active Harmonic Suppression Device for More Electric Aircraft Applications (2021)
Journal Article
Wang, C., Yang, T., Hussaini, H., & Bozhko, S. (2022). Using DC-DC Converters as Active Harmonic Suppression Device for More Electric Aircraft Applications. IEEE Transactions on Industrial Electronics, 69(7), 6508-6518. https://doi.org/10.1109/tie.2021.3099239

Harmonics generated from power electronic converters will impose significant power quality challenges to the electric grid onboard future aircraft. In this article, we propose an innovative modulation scheme that enables using a buck-boost dc-dc conv... Read More about Using DC-DC Converters as Active Harmonic Suppression Device for More Electric Aircraft Applications.

An Enhanced and Cost Saving Droop Control Method for Improved Load Sharing for the MEA Application (2021)
Presentation / Conference Contribution
Hussaini, H., Yang, T., Wang, C., & Bozhko, S. (2021). An Enhanced and Cost Saving Droop Control Method for Improved Load Sharing for the MEA Application. In 2021 IEEE Transportation Electrification Conference & Expo (ITEC) (84-89). https://doi.org/10.1109/itec51675.2021.9490097

The more electric aircraft (MEA) concept has been identified as the major trend of future aircraft. The DC distribution network is a promising architecture for more-electric aircraft application, where multiple electrical sources are connected to a c... Read More about An Enhanced and Cost Saving Droop Control Method for Improved Load Sharing for the MEA Application.

Droop Coefficient Design in Droop Control of Power Converters for Improved Load Sharing: An Artificial Neural Network Approach (2021)
Presentation / Conference Contribution
Hussaini, H., Yang, T., Gao, Y., Wang, C., Dragicevic, T., & Bozhko, S. (2021). Droop Coefficient Design in Droop Control of Power Converters for Improved Load Sharing: An Artificial Neural Network Approach. In Proceedings of 30th International Symposium on Industrial Electronics (ISIE 2021). https://doi.org/10.1109/isie45552.2021.9576482

In this paper, a new approach for the design of the droop coefficient in the droop control of power converters using the artificial neural network (ANN) is proposed. In the first instance, a detailed more electric aircraft (MEA) electrical power syst... Read More about Droop Coefficient Design in Droop Control of Power Converters for Improved Load Sharing: An Artificial Neural Network Approach.

Model Predictive Control for DC Offset Suppression of Dual Active Bridge Converter for More-Electric Aircraft Applications (2021)
Presentation / Conference Contribution
Zhu, Y., Wang, Z., Yang, T., Dragicevic, T., Bozhko, S., & Wheeler, P. (2021). Model Predictive Control for DC Offset Suppression of Dual Active Bridge Converter for More-Electric Aircraft Applications. In 2021 IEEE 30th International Symposium on Industrial Electronics (ISIE). https://doi.org/10.1109/isie45552.2021.9576199

In this paper, the Dual Active Bridge (DAB) converter used to interface batteries for 270/28V on-board grid in More electric aircraft (MEA) applications is investigated. In order to transfer the desired rated power of 3kW, the low voltage terminal cu... Read More about Model Predictive Control for DC Offset Suppression of Dual Active Bridge Converter for More-Electric Aircraft Applications.

An Enhanced Virtual Space Vector Modulation Scheme of Three-Level NPC Converters for More-Electric-Aircraft Applications (2021)
Journal Article
Guo, F., Yang, T., Diab, A., Yeoh, S. S., Bozhko, S., & Wheeler, P. (2021). An Enhanced Virtual Space Vector Modulation Scheme of Three-Level NPC Converters for More-Electric-Aircraft Applications. IEEE Transactions on Industry Applications, 57(5), 5239-5251. https://doi.org/10.1109/tia.2021.3085798

Multilevel converters have been used for aircraft electric starter/generator (ESG) systems due to their high power qualities. One of the desirable topologies is the three-level neutral-point-clamped (3L-NPC) converter. Our studied ESG system operates... Read More about An Enhanced Virtual Space Vector Modulation Scheme of Three-Level NPC Converters for More-Electric-Aircraft Applications.

Adaptive Stabilization of a Permanent Magnet Synchronous Generator-Based DC Electrical Power System in More Electric Aircraft (2021)
Journal Article
Suyapan, A., Areerak, K., Bozhko, S., Yeoh, S. S., & Areerak, K. (2021). Adaptive Stabilization of a Permanent Magnet Synchronous Generator-Based DC Electrical Power System in More Electric Aircraft. IEEE Transactions on Transportation Electrification, 7(4), 2965-2975. https://doi.org/10.1109/tte.2021.3081161

Most loads of electrical power systems on a more electric aircraft (MEA) are regulated power converters. These loads behave as constant power loads (CPLs) that can significantly affect system stability. The system will become unstable and will be una... Read More about Adaptive Stabilization of a Permanent Magnet Synchronous Generator-Based DC Electrical Power System in More Electric Aircraft.

Electric Power Transfer Concept for Enhanced Performance of the More Electric Engine (2021)
Journal Article
Balaghi Enalou, H., & Bozhko, S. (2021). Electric Power Transfer Concept for Enhanced Performance of the More Electric Engine. Journal of Engineering for Gas Turbines and Power, 143(9), Article 091002. https://doi.org/10.1115/1.4050154

In future electrified aircraft, multispool more electric engines (MEEs) are expected to be equipped with electric generators connected to each shaft for power offtake and supplying onboard electrical loads. These can be interfaced to a common high-vo... Read More about Electric Power Transfer Concept for Enhanced Performance of the More Electric Engine.

Torque Ripple Suppression for IPMSM using FEA- based Model Predictive Direct Torque Control (2021)
Presentation / Conference Contribution
Nasr, A., Gu, C., Zhao, W., Bozhko, S., & Gerada, C. (2021). Torque Ripple Suppression for IPMSM using FEA- based Model Predictive Direct Torque Control. In 2021 IEEE Workshop on Electrical Machines Design, Control and Diagnosis (WEMDCD) (204-209). https://doi.org/10.1109/wemdcd51469.2021.9425636

The interest in model predictive direct torque control (MP-DTC) for high-performance dynamic control of electric drives has been growing. Unlike the conventional direct torque control (DTC), MP-DTC can achieve optimal voltage selection by predicting... Read More about Torque Ripple Suppression for IPMSM using FEA- based Model Predictive Direct Torque Control.

Active Modulation Strategy for Capacitor Voltage Balancing of Three-Level Neutral-Point-Clamped Converters in High-Speed Drives (2021)
Journal Article
Guo, F., Yang, T., Li, C., Bozhko, S., & Wheeler, P. (2021). Active Modulation Strategy for Capacitor Voltage Balancing of Three-Level Neutral-Point-Clamped Converters in High-Speed Drives. IEEE Transactions on Industrial Electronics, 69(3), 2276-2287. https://doi.org/10.1109/TIE.2021.3065605

In this article, the equivalent relationship between the nearest-three-virtual space vector and carrier-based pulsewidth-modulation scheme is established based on space vector coordinate for a three-level neutral-point-clamped (3L-NPC) converter. Mor... Read More about Active Modulation Strategy for Capacitor Voltage Balancing of Three-Level Neutral-Point-Clamped Converters in High-Speed Drives.

Enhanced Active Disturbance Rejection Current Controller for Permanent Magnet Synchronous Machines Operated at Low Sampling Time Ratio (2021)
Journal Article
Diab, A. M., Yeoh, S. S., Bozhko, S., Gerada, C., & Galea, M. (2022). Enhanced Active Disturbance Rejection Current Controller for Permanent Magnet Synchronous Machines Operated at Low Sampling Time Ratio. IEEE Journal of Emerging and Selected Topics in Industrial Electronics, 3, 230-241. https://doi.org/10.1109/JESTIE.2021.3063919

Recently, Active Disturbance Rejection Control (ADRC) Scheme has been widely used for current regulation in AC drive systems owing to its robustness to system uncertainties and its high disturbance-rejection capability. However, it has not been consi... Read More about Enhanced Active Disturbance Rejection Current Controller for Permanent Magnet Synchronous Machines Operated at Low Sampling Time Ratio.

Methodologies for the Synthesis of Reliable MEA Electrical Power System Architectures (2021)
Presentation / Conference Contribution
Recalde, A., Bozhko, S., & Atkin, J. (2021). Methodologies for the Synthesis of Reliable MEA Electrical Power System Architectures.

This paper reviews the main optimization approaches and design frameworks found in the literature for the synthesis of power system architectures for More Electric Aircraft (MEA). System- and network- engineering are the main interdisciplinary fields... Read More about Methodologies for the Synthesis of Reliable MEA Electrical Power System Architectures.

Stabilization of DC MicroGrid Systems Using the Loop-Cancellation Technique (2021)
Journal Article
Pakdeeto, J., Areerak, K., Bozhko, S., & Areerak, K. (2021). Stabilization of DC MicroGrid Systems Using the Loop-Cancellation Technique. IEEE Journal of Emerging and Selected Topics in Power Electronics, 9(3), 2652-2663. https://doi.org/10.1109/JESTPE.2021.3053349

DC microgrid systems (DCMGs) feed power to constant power loads (CPLs) via transmission lines. Although these systems are commonly used worldwide, CPLs have negative impedance effects. These loads can significantly degrade the system stability. There... Read More about Stabilization of DC MicroGrid Systems Using the Loop-Cancellation Technique.

Neural Network based Weighting Factor Selection of MPC for Optimal Battery and Load Management in MEA (2020)
Presentation / Conference Contribution
Wang, X., Gao, Y., Atkin, J., & Bozhko, S. (2020). Neural Network based Weighting Factor Selection of MPC for Optimal Battery and Load Management in MEA. . https://doi.org/10.23919/icems50442.2020.9290968

This paper presents a Neural Network (NN)-based weighting factor (WF) selection method for the multi-objective cost function in Model Predictive Control (MPC). MPC is adopted for scheduling the loads and charging/discharging the battery intelligently... Read More about Neural Network based Weighting Factor Selection of MPC for Optimal Battery and Load Management in MEA.

Design Methodology and Parametric Design Study of the On-Board Electrical Power System for Hybrid Electric Aircraft Propulsion (2020)
Presentation / Conference Contribution
Valente, G., Sumsurooah, S., Ian Hill, C., Rashed, M., Vakil, G., Bozhko, S., & Gerada, C. (2020). Design Methodology and Parametric Design Study of the On-Board Electrical Power System for Hybrid Electric Aircraft Propulsion.

This paper presents parametric design studies of the on-board Electrical Power System (EPS) for a distributed hybrid aircraft propulsion. The work presents the methodology that has been adopted to develop the physics-based models of the EPS component... Read More about Design Methodology and Parametric Design Study of the On-Board Electrical Power System for Hybrid Electric Aircraft Propulsion.

Filter Design and Optimization of Electromechanical Actuation Systems Using Search and Surrogate Algorithms for More-Electric Aircraft Applications (2020)
Journal Article
Gao, Y., Yang, T., Bozhko, S., Wheeler, P., & Dragicevic, T. (2020). Filter Design and Optimization of Electromechanical Actuation Systems Using Search and Surrogate Algorithms for More-Electric Aircraft Applications. IEEE Transactions on Transportation Electrification, 6(4), 1434-1447. https://doi.org/10.1109/tte.2020.3019729

In this paper, a dc filter design and optimization problem is studied for dc electrical power distribution systems onboard more-electric aircraft. Component sizing models are built to serve as the basis of the optimization whose objectives are mass a... Read More about Filter Design and Optimization of Electromechanical Actuation Systems Using Search and Surrogate Algorithms for More-Electric Aircraft Applications.

Optimal filter design for power converters regulated by FCS-MPC in the MEA (2020)
Journal Article
Gao, Y., Yang, T., Dragicevic, T., Bozhko, S., Wheeler, P., & Zheng, C. (2021). Optimal filter design for power converters regulated by FCS-MPC in the MEA. IEEE Transactions on Power Electronics, 36(3), 3258-3268. https://doi.org/10.1109/tpel.2020.3017862

For the DC electrical power distribution system onboard more electric aircraft, the voltage quality of DC bus is of a great concern since there could be significant harmonics distortions when feeding different power electronics loads. This problem ca... Read More about Optimal filter design for power converters regulated by FCS-MPC in the MEA.

An Enhanced Second Carrier Harmonic Cancellation Technique for Dual-Channel Enhanced Power Generation Centre Applications in More-Electric Aircraft (2020)
Journal Article
Wang, C., Yang, T., Kulsangcharoen, P., & Bozhko, S. (2021). An Enhanced Second Carrier Harmonic Cancellation Technique for Dual-Channel Enhanced Power Generation Centre Applications in More-Electric Aircraft. IEEE Transactions on Industrial Electronics, 68(7), 5683-5692. https://doi.org/10.1109/tie.2020.2998755

The more-electric aircraft concept has made extraction of electrical power from both high-pressure and low-pressure shaft of an aircraft engine essential for future aircraft. With each shaft driving one electrical generation channel, an advanced dual... Read More about An Enhanced Second Carrier Harmonic Cancellation Technique for Dual-Channel Enhanced Power Generation Centre Applications in More-Electric Aircraft.

Performance Enhancement of Direct Torque-Controlled Permanent Magnet Synchronous Motor with a Flexible Switching Table (2020)
Journal Article
Nasr, A., Gu, C., Bozhko, S., & Gerada, C. (2020). Performance Enhancement of Direct Torque-Controlled Permanent Magnet Synchronous Motor with a Flexible Switching Table. Energies, 13(8), Article 1907. https://doi.org/10.3390/en13081907

In this paper, a flexible switching table (FST) for direct torque control (DTC) of permanent magnet synchronous motors (PMSMs) was proposed to enhance the steady-state and dynamic performances of the drive system. First, the influence of each convert... Read More about Performance Enhancement of Direct Torque-Controlled Permanent Magnet Synchronous Motor with a Flexible Switching Table.

An Improved Control Strategy for Switched Reluctance Generator System in More Electric Aircraft (2019)
Presentation / Conference Contribution
Velmurugan, G., YEOH, S. S., Yang, T., & Bozhko, S. (2019). An Improved Control Strategy for Switched Reluctance Generator System in More Electric Aircraft.

Switched Reluctance Machines (SRM) has emerged as an important possible technology for usage in More Electric Aircraft (MEA) in particular as a starter/generator. As a starter/generator, the SRM operates as a generator as well as a motor (starter). T... Read More about An Improved Control Strategy for Switched Reluctance Generator System in More Electric Aircraft.

Trade-off Study of a High Power Density Starter-Generator for Turboprop Aircraft System (2019)
Presentation / Conference Contribution
Khowja, M. R., Vakil, G., Gerada, C., Yang, T., Bozhko, S., & Wheeler, P. (2019). Trade-off Study of a High Power Density Starter-Generator for Turboprop Aircraft System. In Proceedings: IECON 2019 - 45th Annual Conference of the IEEE Industrial Electronics Society (1435-1440). https://doi.org/10.1109/IECON.2019.8926961

Mechanically-driven actuators, compressors and pumps are being replaced by the aircraft manufacturers that shift the trend towards 'More Electric Aircraft' and hence reducing the mechanical linkages within the aircraft system. This elevates the depen... Read More about Trade-off Study of a High Power Density Starter-Generator for Turboprop Aircraft System.

An enhanced second carrier harmonic cancellation method for multi-source DC electric power systems (2019)
Presentation / Conference Contribution
Wang, C., Yang, T., Bozhko, S., & Kulsangcharoen, P. (2019). An enhanced second carrier harmonic cancellation method for multi-source DC electric power systems. In Proceedings: IECON 2019 - 45th Annual Conference of the IEEE Industrial Electronics Society (2610-2615). https://doi.org/10.1109/IECON.2019.8927821

Multi-source DC power systems have been widely used in electric transportations, including more-electric aircraft, electric ship and electric vehicles. These systems normally involve in power electronic converters whose switching actions may cause cu... Read More about An enhanced second carrier harmonic cancellation method for multi-source DC electric power systems.

Comparative Evaluation of High Power Solid State Power Controller (SSPC) With and Without Auxiliary Over-current Bypass Circuit (2019)
Presentation / Conference Contribution
Adhikari, J., Yang, T., Bozhko, S., & Wheeler, P. (2019). Comparative Evaluation of High Power Solid State Power Controller (SSPC) With and Without Auxiliary Over-current Bypass Circuit. In Proceedings: IECON 2019 - 45th Annual Conference of the IEEE Industrial Electronics Society (2628-2633). https://doi.org/10.1109/IECON.2019.8926717

This paper explores the possibility of a semiconductor-based over-current bypass circuit for high current solid-state power controllers (SSPCs). Therefore, two different topologies of the bidirectional DC SSPCs: a. without over-current bypass circuit... Read More about Comparative Evaluation of High Power Solid State Power Controller (SSPC) With and Without Auxiliary Over-current Bypass Circuit.

A Novel Virtual Space Vector Modulation Scheme for Three-Level NPC Power Converter with Neutral-Point Voltage Balancing and Common-Mode Voltage Reduction for Electric Starter/Generator System in More-Electric-Aircraft (2019)
Presentation / Conference Contribution
Guo, F., Yang, T., Bozhko, S., & Wheeler, P. (2019). A Novel Virtual Space Vector Modulation Scheme for Three-Level NPC Power Converter with Neutral-Point Voltage Balancing and Common-Mode Voltage Reduction for Electric Starter/Generator System in More-Electric-Aircraft. In 2019 IEEE Energy Conversion Congress and Exposition (ECCE) (1852-1858). https://doi.org/10.1109/ECCE.2019.8913186

In recent years, More-Electric-Aircraft (MEA) becomes the state-of-the-art. One of the essential issue need to be solved is neutral-point (NP) voltage drift in three-level neutral-point-clamped (3L-NPC) power converter because of low power factor (PF... Read More about A Novel Virtual Space Vector Modulation Scheme for Three-Level NPC Power Converter with Neutral-Point Voltage Balancing and Common-Mode Voltage Reduction for Electric Starter/Generator System in More-Electric-Aircraft.

A Power Generation Center with Back-to-back Converter Considering Post-fault Operation for MEA Application (2019)
Presentation / Conference Contribution
Lang, X., Yang, T., Enalou, H. B., Wheeler, P., & Bozhko, S. (2019). A Power Generation Center with Back-to-back Converter Considering Post-fault Operation for MEA Application. In Proceedings of the 22nd International Conference on Electrical Machines and Systems (ICEMS) (1-6). https://doi.org/10.1109/ICEMS.2019.8922219

This paper proposes a new power generation centre (PGC) for the engine of more electric aircraft (MEA) application. In this PGC, a starter/generator is connected to the high-pressure (HP) spool to start the engine in the start process and generate el... Read More about A Power Generation Center with Back-to-back Converter Considering Post-fault Operation for MEA Application.

Open-Switch Fault Diagnosis for Three-Phase AC-DC Power Converter with Park's Vector Method Considering Modulation Schemes (2019)
Presentation / Conference Contribution
Guo, F., Yang, T., Bozhko, S., & Wheeler, P. (2019). Open-Switch Fault Diagnosis for Three-Phase AC-DC Power Converter with Park's Vector Method Considering Modulation Schemes. In Proceedings of the 2019 IEEE 12th International Symposium on Diagnostics for Electrical Machines, Power Electronics and Drives (405-411). https://doi.org/10.1109/DEMPED.2019.8864839

Open-switch fault accounts for large proportions among failures in power conversion system. Previously, fault defection methods are carried out by researches from transient period or circuit configuration with complicated algorithms. This paper revea... Read More about Open-Switch Fault Diagnosis for Three-Phase AC-DC Power Converter with Park's Vector Method Considering Modulation Schemes.

Analytical modelling and power density optimisation of a single phase dual active bridge for aircraft application (2019)
Journal Article
Fritz, N., Rashed, M., Bozhko, S., Cuomo, F., & Wheeler, P. (2019). Analytical modelling and power density optimisation of a single phase dual active bridge for aircraft application. Journal of Engineering, 2019(17), 3671-3676. https://doi.org/10.1049/joe.2018.8068

A design procedure for the dual active bridge (DAB) converter is presented, which aims to optimised power density and computational effort. When designing a DAB, the selection of circuit design parameters such as switching frequency, leakage inductan... Read More about Analytical modelling and power density optimisation of a single phase dual active bridge for aircraft application.

A Dual-Channel Enhanced Power Generation Architecture with Back-to-back Converter for MEA Application (2019)
Presentation / Conference Contribution
Lang, X., Yang, T., Enalou, H. B., Li, C., Bozhko, S., & Wheeler, P. (2019). A Dual-Channel Enhanced Power Generation Architecture with Back-to-back Converter for MEA Application. In Proceedings of 2019 IEEE International Electric Machines & Drives Conference (IEMDC) (1392-1397). https://doi.org/10.1109/IEMDC.2019.8785095

This paper presents a new electricity power generation architecture for the engine system of more electric aircraft (MEA). A starter/generator (SG) is connected to high-pressure (HP) spool, and a generator is attached to low-pressure (LP) spool. Thei... Read More about A Dual-Channel Enhanced Power Generation Architecture with Back-to-back Converter for MEA Application.

On-board microgrids for the More Electric Aircraft: technology review (2018)
Journal Article
Giampaolo, B., Serhiy, B., Marco, L., Patrick, W., & Kamal, A.-H. (2018). On-board microgrids for the More Electric Aircraft: technology review. IEEE Transactions on Industrial Electronics, 66(7), 5588-5599. https://doi.org/10.1109/TIE.2018.2881951

This paper presents an overview of technology related to on-board microgrids for the More Electric Aircraft. All aircraft use an isolated system, where security of supply and power density represent the main requirements. Different distribution syste... Read More about On-board microgrids for the More Electric Aircraft: technology review.

Direct vector control of induction motors based on rotor resistance-invariant rotor flux observer (2018)
Presentation / Conference Contribution
Bozhko, S., Kovbasa, S., Nikonenko, Y., & Peresada, S. (2018). Direct vector control of induction motors based on rotor resistance-invariant rotor flux observer. In Proceedings - 2018 IEEE International Conference on Electrical Systems for Aircraft, Railway, Ship Propulsion and Road Vehicles & International Transportation Electrification Conference (ESARS-ITEC) (1-6). https://doi.org/10.1109/ESARS-ITEC.2018.8607640

A novel speed-flux tracking controller for induction motors has been developed and experimentally verified. Direct rotor flux field oriented controller is designed for current-fed induction motor model on the base of full order hybrid continuous time... Read More about Direct vector control of induction motors based on rotor resistance-invariant rotor flux observer.

An Enhanced Power Generation Centre for More Electric Aircraft Applications (2018)
Presentation / Conference Contribution
Lang, X., Yang, T., Enalou, H. B., Bozhko, S., & Wheeler, P. (2018). An Enhanced Power Generation Centre for More Electric Aircraft Applications. In Proceedings - 2018 IEEE International Conference on Electrical Systems for Aircraft, Railway, Ship Propulsion and Road Vehicles & International Transportation Electrification Conference (ESARS-ITEC) (1-6). https://doi.org/10.1109/esars-itec.2018.8607688

© 2018 IEEE. The more-electric aircraft (MEA) concept has become a major trend due to its multiple advantages. Many functions which are conventionally driven by pneumatic, hydraulic and mechanical power systems are replaced by electrical ones onboard... Read More about An Enhanced Power Generation Centre for More Electric Aircraft Applications.

Multi-Objective Supervisory Control for DC/DC Converters in Advanced Aeronautic Applications (2018)
Journal Article
Cavallo, A., Canciello, G., Guida, B., Kulsangcharoen, P., Yeoh, S., Rashed, M., & Bozhko, S. (2018). Multi-Objective Supervisory Control for DC/DC Converters in Advanced Aeronautic Applications. Energies, 11(11), Article 3216. https://doi.org/10.3390/en11113216

In this paper, an intelligent control strategy for DC/DC converters is proposed. The converter connects two DC busses, a high-voltage and a low-voltage bus. The control scheme is composed by a two-layer architecture, a low-level control based on the... Read More about Multi-Objective Supervisory Control for DC/DC Converters in Advanced Aeronautic Applications.

3L-NPC AC-DC power converter using virtual space vector PWM with optimal switching sequence based on G-h coordinate (2018)
Presentation / Conference Contribution
Guo, F., Yang, T., Bozhko, S., & Wheeler, P. (2018). 3L-NPC AC-DC power converter using virtual space vector PWM with optimal switching sequence based on G-h coordinate. In 2018 IEEE International Conference on Electrical Systems for Aircraft, Railway, Ship Propulsion and Road Vehicles & International Transportation Electrification Conference (ESARS-ITEC)

Potential Improvements in Turbofan's Performance by Electric Power Transfer (2018)
Presentation / Conference Contribution
Enalou, H. B., Le-Peuvedic, J. M., Rashed, M., & Bozhko, S. (2018). Potential Improvements in Turbofan's Performance by Electric Power Transfer. . https://doi.org/10.4271/2018-01-1962

© 2018 SAE International. All Rights Reserved. Bleeding in engines is essential to mitigate the unmatched air massflow between low and High Pressure (HP) compressors at low speed settings, thus avoiding unstable operation due to surge and phenomena.... Read More about Potential Improvements in Turbofan's Performance by Electric Power Transfer.

Neutral Point Voltage Control Method for Three-Level Diode-Clamped Converter Based on Fourth Harmonic Current Injection (2018)
Presentation / Conference Contribution
Li, C., Yang, T., Bozhko, S., & Wheeler, P. (2018). Neutral Point Voltage Control Method for Three-Level Diode-Clamped Converter Based on Fourth Harmonic Current Injection. In Proceedings - 2018 IEEE Energy Conversion Congress and Exposition (ECCE) (6996-7002). https://doi.org/10.1109/ECCE.2018.8557537

DC-link neutral point voltage balancing for three level neutral point clamped converters has been extensively investigated. Many effective methods have been reported with desirable performances under high power factor conditions. However, most of the... Read More about Neutral Point Voltage Control Method for Three-Level Diode-Clamped Converter Based on Fourth Harmonic Current Injection.

Concept of experimental research for electrical vehicle electromechanical systems with hybrid energy storages (2018)
Journal Article
Peresada, S., Kovbasa, S., Nikonenko, Y., & Bozhko, S. (2018). Concept of experimental research for electrical vehicle electromechanical systems with hybrid energy storages. Tekhnichna Elektrodynamika, 2018(5), 57-60. https://doi.org/10.15407/techned2018.05.057

In this paper, the concept of experimental investigations of electric vehicles electromechanical systems with hybrid energy storages is designed. Hybrid energy storage system is based on accumulators and super capacitors.... Read More about Concept of experimental research for electrical vehicle electromechanical systems with hybrid energy storages.

Development of aircraft electric starter-generator system based-on active rectification technology (2018)
Journal Article
Bozhko, S., Yang, T., Le Peuvedic, J.-M., Arumugam, P., Degano, M., La Rocca, A., …Wheeler, P. (2018). Development of aircraft electric starter-generator system based-on active rectification technology. IEEE Transactions on Transportation Electrification, 4(4), 985-996. https://doi.org/10.1109/TTE.2018.2863031

More-electric aircraft (MEA) has become a dominant trend for modern aircraft. On-board MEA, many functions, which are conventionally driven by pneumatic and hydraulic power, are replaced with electrical subsystems. Starting aircraft engines with an e... Read More about Development of aircraft electric starter-generator system based-on active rectification technology.

Control system design and the power management of MEFADEC assembled on More-Electric Aircraft (2018)
Presentation / Conference Contribution
Yin, M., Bozhko, S., Yao, T., & You, C. (in press). Control system design and the power management of MEFADEC assembled on More-Electric Aircraft.

This paper deals with a novel control system design of More Electric Full Authorized Digital Electronic Control (MEFADEC) on the more electric aircraft. On the base of the analysis of the power management of MEFADEC system, the power of the more elec... Read More about Control system design and the power management of MEFADEC assembled on More-Electric Aircraft.

A preliminary study into turbofan performance with LP-HP power exchange (2018)
Presentation / Conference Contribution
Enalou, H. B., Bozhko, S., Rashed, M., & Kulsangcharoen, P. (2018). A preliminary study into turbofan performance with LP-HP power exchange.

Once an engine is designed, its Low Pressure (LP) and High Pressure (HP) shaft speeds are inevitably thermodynamically coupled which imposes certain operational constraints. These spools are not mechanically connected, however, in future more electri... Read More about A preliminary study into turbofan performance with LP-HP power exchange.

Performance improvement of the CFM56-3 aircraft engine by electric power transfer (2018)
Presentation / Conference Contribution
Enalou, H. B., & Bozhko, S. (2018). Performance improvement of the CFM56-3 aircraft engine by electric power transfer. In Proceedings of 13th European Conference on Turbomachinery Fluid dynamics & Thermodynamics (ETC13)

With the design trends towards the More Electric Engine (MEE) for the More Electric Aircraft (MEA), areas for novel technologies can be pinpointed for multi-spool engines, introducing remarkable improvements to push the boundaries of propulsion techn... Read More about Performance improvement of the CFM56-3 aircraft engine by electric power transfer.

Generic functional modelling of multi-pulse auto-transformer rectifier units for more-electric aircraft applications (2018)
Journal Article
Yang, T., Bozhko, S., Wheeler, P., Wang, S., & Wu, S. (2018). Generic functional modelling of multi-pulse auto-transformer rectifier units for more-electric aircraft applications. Chinese Journal of Aeronautics, 31(5), 883-891. https://doi.org/10.1016/j.cja.2018.03.010

The Auto-Transformer Rectifier Unit (ATRU) is one preferred solution for high-power AC/DC power conversion in aircraft. This is mainly due to its simple structure, high reliability and reduced kVA ratings. Indeed, the ATRU has become a preferred AC/D... Read More about Generic functional modelling of multi-pulse auto-transformer rectifier units for more-electric aircraft applications.

Toward Robust Stability of Aircraft Electrical Power Systems: Using a μ-Based Structural Singular Value to Analyze and Ensure Network Stability (2017)
Journal Article
Sumsurooah, S., Odavic, M., Bozhko, S., & Boroyevich, D. (2017). Toward Robust Stability of Aircraft Electrical Power Systems: Using a μ-Based Structural Singular Value to Analyze and Ensure Network Stability. IEEE Electrification Magazine, 5(4), 62-71. https://doi.org/10.1109/MELE.2017.2757383

Transport accounts for nearly two-thirds of the global crude oil consumption and about a quarter of carbon dioxide (CO2) emissions (International Energy Agency 2009, Intergovernmental Panel on Climate Change 2014). The energy use and CO2 emissions in... Read More about Toward Robust Stability of Aircraft Electrical Power Systems: Using a μ-Based Structural Singular Value to Analyze and Ensure Network Stability.

Adaptive Stabilization of Uncontrolled Rectifier Based AC–DC Power Systems Feeding Constant Power Loads (2017)
Journal Article
Areerak, K., Sopapirm, T., Bozhko, S., Hill, C. I., Suyapan, A., & Areerak, K. (2018). Adaptive Stabilization of Uncontrolled Rectifier Based AC–DC Power Systems Feeding Constant Power Loads. IEEE Transactions on Power Electronics, 33(10), 8927-8935. https://doi.org/10.1109/TPEL.2017.2779541

© 2017 IEEE. It is known that, when tightly regulated, actively controlled power converters behave as constant power loads (CPLs). These loads can significantly degrade the stability of their feeder system. The loop-cancelation technique has been est... Read More about Adaptive Stabilization of Uncontrolled Rectifier Based AC–DC Power Systems Feeding Constant Power Loads.

Maximum torque-per-amp tracking control of saturated induction motors (2017)
Presentation / Conference Contribution
Peresada, S., Kovbasa, S., Dymko, S., & Bozhko, S. (2017). Maximum torque-per-amp tracking control of saturated induction motors. In 2017 Proceedings of the International Conference on Modern Electrical and Energy Systems (MEES) (72-75). https://doi.org/10.1109/MEES.2017.8248955

An improved maximum torque per Ampere (MTPA) controller for induction motor (IM) drives is presented. The proposed MTPA field oriented controller guarantees asymptotic torque tracking of smooth reference trajectories and maximises the torque per Ampe... Read More about Maximum torque-per-amp tracking control of saturated induction motors.

A Novel Space Vector Modulation Technique For Three Level NPC Converters Within Aircraft Starter Generator Systems (2017)
Presentation / Conference Contribution
Li, C., Lo Calzo, G., Bozhko, S., Gerada, C., Wheeler, P., & Yang, T. (2017). A Novel Space Vector Modulation Technique For Three Level NPC Converters Within Aircraft Starter Generator Systems.

The neutral point voltage balancing issue for three level Neutral point clamped (NPC) converter has been extensively investigated recently. Different solutions to balance the neutral point have been proposed. However the proposed solutions so far eit... Read More about A Novel Space Vector Modulation Technique For Three Level NPC Converters Within Aircraft Starter Generator Systems.

Robust stability analysis of a dc/dc buck converter under multiple parametric uncertainties (2017)
Journal Article
Sumsurooah, S., Odavic, M., Bozhko, S., & Boroyevich, D. (in press). Robust stability analysis of a dc/dc buck converter under multiple parametric uncertainties. IEEE Transactions on Power Electronics, https://doi.org/10.1109/TPEL.2017.2736023

Stability studies are a crucial part of the design of power electronic systems, especially for safety critical ap¬plications. Standard methods can guarantee stability under nominal conditions but do not take into account the multiple uncertainties th... Read More about Robust stability analysis of a dc/dc buck converter under multiple parametric uncertainties.

Permanent magnet machine based starter-generator system with modulated model predictive control (2017)
Journal Article
Yeoh, S. S., Yang, T., Tariscotti, L., Hill, C. I., Bozhko, S., & Zanchetta, P. (in press). Permanent magnet machine based starter-generator system with modulated model predictive control. IEEE Transactions on Transportation Electrification, https://doi.org/10.1109/TTE.2017.2731626

The paper describes a hybrid control scheme for a permanent magnet machine based starter-generator (S/G) system. There has been increased usage of electric drive systems in the transportation sector for increased efficiency and reduced emissions. One... Read More about Permanent magnet machine based starter-generator system with modulated model predictive control.

Flux weakening control of electric starter-generator based on permanent-magnet machine (2017)
Journal Article
Bozhko, S., Rashed, M., Hill, C. I., Yeoh, S. S., & Yang, T. (2017). Flux weakening control of electric starter-generator based on permanent-magnet machine. IEEE Transactions on Transportation Electrification, 3(4), 864-877. https://doi.org/10.1109/TTE.2017.2718221

The paper presents control analysis and design for a Permanent Magnet Machine (PMM) operated in Flux-Weakening (FW) mode for an aircraft electric starter-generator application. Previous literature has focused on FW control of PMMs in motoring (starti... Read More about Flux weakening control of electric starter-generator based on permanent-magnet machine.

Control Design and Voltage Stability Analysis of a Droop-Controlled Electrical Power System for More Electric Aircraft (2017)
Journal Article
Gao, F., Bozhko, S., Costabeber, A., Asher, G., & Wheeler, P. (2017). Control Design and Voltage Stability Analysis of a Droop-Controlled Electrical Power System for More Electric Aircraft. IEEE Transactions on Industrial Electronics, 64(12), 9271-9281. https://doi.org/10.1109/TIE.2017.2711552

This paper focuses on the analysis of a single DC bus multi-generator Electrical Power System (EPS) for future More Electric Aircrafts (MEA). Within such a single bus paradigm, the paper proposes a detailed control design procedure and provides a sta... Read More about Control Design and Voltage Stability Analysis of a Droop-Controlled Electrical Power System for More Electric Aircraft.

DC-Link Capacitor Second Carrier Band Switching Harmonic Current Reduction in Two-Level Back-to-Back Converters (2017)
Journal Article
Shen, L., Bozhko, S., Hill, C. I., & Wheeler, P. (2018). DC-Link Capacitor Second Carrier Band Switching Harmonic Current Reduction in Two-Level Back-to-Back Converters. IEEE Transactions on Power Electronics, 33(4), 3567-3574. https://doi.org/10.1109/TPEL.2017.2706972

© 1986-2012 IEEE. This paper proposes an active switching harmonic current reduction method within the dc-link capacitor of two-level, three-phase, back-to-back converters. This method is based on the derived analytical solution for switching harmoni... Read More about DC-Link Capacitor Second Carrier Band Switching Harmonic Current Reduction in Two-Level Back-to-Back Converters.

Stability assessment of a droop-controlled multi-generator electrical power system in the more electric aircraft using parameter space approach (2017)
Presentation / Conference Contribution
Gao, F., Zheng, X., & Bozhko, S. (in press). Stability assessment of a droop-controlled multi-generator electrical power system in the more electric aircraft using parameter space approach.

This paper investigates the dynamic stability of a droop-controlled multi-generator system in the more electric aircraft (MEA). Based on the developed state-space model of the potential dc electrical power system (EPS) architecture, the stability bou... Read More about Stability assessment of a droop-controlled multi-generator electrical power system in the more electric aircraft using parameter space approach.

μ approach to robust stability domains in the space of parametric uncertainties for a power system with ideal CPL (2017)
Journal Article
Sumsurooah, S., Odavic, M., & Bozhko, S. (in press). μ approach to robust stability domains in the space of parametric uncertainties for a power system with ideal CPL. IEEE Transactions on Power Electronics, https://doi.org/10.1109/TPEL.2017.2668900

Power electronic systems are prone to instability. The problem, generally attributed to the constant power load (CPL) behaviour of their power electronic controlled loads, can become more acute when the systems are subject to parametric uncertainties... Read More about μ approach to robust stability domains in the space of parametric uncertainties for a power system with ideal CPL.

Robust indirect field oriented control of induction generator (2017)
Presentation / Conference Contribution
Bozhko, S., Peresada, S., Kovbasa, S., & Zhelinskyi, M. (in press). Robust indirect field oriented control of induction generator.

The paper presents a novel robust field oriented vector control for induction generators. The proposed controller exploits the concept of indirect field orientation and guarantees asymptotic DC-link voltage regulations when DC-load is constant or slo... Read More about Robust indirect field oriented control of induction generator.

History and recent advancements of electric propulsion and integrated electrical power systems for commercial & naval vessels (2016)
Presentation / Conference Contribution
Yang, T., Cox, T., Degano, M., Bozhko, S., & Gerada, C. (2016). History and recent advancements of electric propulsion and integrated electrical power systems for commercial & naval vessels.

Due to developments in power electronics, electric machines, energy storage and control, electric propulsion and integrated electrical power systems have become major trends for commercial and naval vessels. This is mainly due to the fact that the us... Read More about History and recent advancements of electric propulsion and integrated electrical power systems for commercial & naval vessels.

Flux weakening control of Permanent Magnet Machine based aircraft electric starter-generator (2016)
Presentation / Conference Contribution
Bozhko, S., Rashed, M., Yeoh, S. S., Yang, T., & Hill, C. I. (in press). Flux weakening control of Permanent Magnet Machine based aircraft electric starter-generator.

This paper presents control analysis and design for an aircraft electric starter-generator system based on a Permanent Magnet Machine (PMM) operated in Flux-Weakening mode (FW). The focus is on detailed stability analysis which helped to discover an... Read More about Flux weakening control of Permanent Magnet Machine based aircraft electric starter-generator.

An enhanced secondary control approach for voltage restoration in the DC distribution system (2016)
Presentation / Conference Contribution
Gao, F., Wheeler, P., & Bozhko, S. (2016). An enhanced secondary control approach for voltage restoration in the DC distribution system.

The paper will deal with the problem of establishing a desirable power sharing in multi-feed electric power system for future more-electric aircraft (MEA) platforms. The MEA is one of the major trends in modern aerospace engineering aiming for reduct... Read More about An enhanced secondary control approach for voltage restoration in the DC distribution system.

Control design for PMM-based generator fed by active front-end rectifier in more-electric aircraft (2016)
Journal Article
Yin, M., Bozhko, S., & Yeoh, S. S. (2016). Control design for PMM-based generator fed by active front-end rectifier in more-electric aircraft. SAE International Journal of Aerospace, 9(1), 23-29. https://doi.org/10.4271/2016-01-1987

The future aircraft electrical power system is expected to be more efficient, safer, simpler in servicing and easier in maintenance. As a result, many existing hydraulic and pneumatic power driven systems are being replaced by their electrical counte... Read More about Control design for PMM-based generator fed by active front-end rectifier in more-electric aircraft.

Maximum torque-per-Amp control for traction IM drives: theory and experimental results (2016)
Journal Article
Bozhko, S., Dymko, S., Kovbasa, S., & Peresada, S. (2017). Maximum torque-per-Amp control for traction IM drives: theory and experimental results. IEEE Transactions on Industry Applications, 53(1), 181-193. https://doi.org/10.1109/TIA.2016.2608789

A novel maximum torque per Ampere (MTPA) controller for induction motor (IM) drives is presented. It is shown to be highly suited to applications that do not demand an extremely fast dynamic response, for example electric vehicle drives. The proposed... Read More about Maximum torque-per-Amp control for traction IM drives: theory and experimental results.

Stability assessment of a high speed permanent magnet machine based aircraft electrical power system (2016)
Presentation / Conference Contribution
Gao, F., Yeoh, S. S., Hill, C. I., Yang, T., & Bozhko, S. (2016). Stability assessment of a high speed permanent magnet machine based aircraft electrical power system.

Starting an aircraft engine with an electrical machine has been one of the major trends for future aircraft. This paper studies the stability of a permanent-magnet machine (PMM) based aircraft starter/generator (S/G) system. Using control-to-output t... Read More about Stability assessment of a high speed permanent magnet machine based aircraft electrical power system.

Modeling and impedance analysis of a single DC bus-based multiple-source multiple-load electrical power system (2016)
Journal Article
Gao, F., & Bozhko, S. (2016). Modeling and impedance analysis of a single DC bus-based multiple-source multiple-load electrical power system. IEEE Transactions on Transportation Electrification, 2(3), 335-346. https://doi.org/10.1109/TTE.2016.2592680

The impedance based stability assessment method has been widely used to assess the stability of interconnected systems in different application areas. This paper deals with the source/load impedance analysis of the droop-controlled multiple sources m... Read More about Modeling and impedance analysis of a single DC bus-based multiple-source multiple-load electrical power system.

Impact of Soft Magnetic Material on Design of High-Speed Permanent-Magnet Machines (2016)
Journal Article
Fernando, N., Vakil, G., Arumugam, P., Amankwah, E. K., Gerada, C., & Bozhko, S. (2017). Impact of Soft Magnetic Material on Design of High-Speed Permanent-Magnet Machines. IEEE Transactions on Industrial Electronics, 64(3), 2415-2423. https://doi.org/10.1109/TIE.2016.2587815

© 2016 IEEE. This paper investigates the effect of two soft magnetic materials on a high-speed machine design, namely, 6.5% silicon steel and cobalt-iron alloy. The effect of design parameters on the machine performance as an aircraft starter-generat... Read More about Impact of Soft Magnetic Material on Design of High-Speed Permanent-Magnet Machines.

A modeling methodology for robust stability analysis of nonlinear electrical power systems under parameter uncertainties (2016)
Journal Article
Sumsurooah, S., Odavic, M., & Bozhko, S. (2016). A modeling methodology for robust stability analysis of nonlinear electrical power systems under parameter uncertainties. IEEE Transactions on Industry Applications, 52(5), 4416-4425. https://doi.org/10.1109/TIA.2016.2581151

This paper develops a modelling method for robust stability analysis of non-linear electrical power systems over a range of operating points and under parameter uncertainties. Standard methods can guarantee stability under nominal condi¬tions but do... Read More about A modeling methodology for robust stability analysis of nonlinear electrical power systems under parameter uncertainties.

Dynamic output feedback linearizing control of saturated induction motors with torque per ampere ratio maximization (2016)
Presentation / Conference Contribution
Peresada, S., Kovbasa, S., Dymko, S., & Bozhko, S. (2016). Dynamic output feedback linearizing control of saturated induction motors with torque per ampere ratio maximization.

The paper presents a novel maximum torque per Ampere (MTA) controller for induction motor (IM) drives. The proposed controller exploits the concept of direct (observer based) field orientation and guarantees asymptotic torque tracking of smooth refer... Read More about Dynamic output feedback linearizing control of saturated induction motors with torque per ampere ratio maximization.

Comparative stability analysis of droop control approaches in voltage-source-converter-based DC microgrids (2016)
Journal Article
Gao, F., Bozhko, S., Costabeber, A., Patel, C., Wheeler, P., Hill, C. I., & Asher, G. (in press). Comparative stability analysis of droop control approaches in voltage-source-converter-based DC microgrids. IEEE Transactions on Power Electronics, https://doi.org/10.1109/TPEL.2016.2567780

Droop control has been widely applied in DC microgrids (MGs) due to its inherent modularity and ease of implementation. Among the different droop control methods that can be adopted in DC MGs, two options have been considered in this paper; I-V and V... Read More about Comparative stability analysis of droop control approaches in voltage-source-converter-based DC microgrids.

Active DC-link capacitor harmonic current reduction in two-level back-to-back converter (2015)
Journal Article
Shen, L., Bozhko, S., Asher, G., Patel, C., & Wheeler, P. (2015). Active DC-link capacitor harmonic current reduction in two-level back-to-back converter. IEEE Transactions on Power Electronics, 31(10), https://doi.org/10.1109/TPEL.2015.2511304

The paper proposes a method of active switching harmonics current reduction in the DC-link capacitor of a two-level, three-phase, back-to-back converter. Based on the derived analytical solution for switching harmonic currents in the DC-link, it is s... Read More about Active DC-link capacitor harmonic current reduction in two-level back-to-back converter.

An improved voltage compensation approach in a droop-controlled DC power system for the more electric aircraft (2015)
Journal Article
Gao, F., Bozhko, S., Asher, G., Wheeler, P., & Patel, C. (2015). An improved voltage compensation approach in a droop-controlled DC power system for the more electric aircraft. IEEE Transactions on Power Electronics, 31(10), https://doi.org/10.1109/TPEL.2015.2510285

This paper proposes an improved voltage regulation method in multi-source based DC electrical power system in the more electric aircraft. The proposed approach, which can be used in terrestrial DC microgrids as well, effectively improves the load sha... Read More about An improved voltage compensation approach in a droop-controlled DC power system for the more electric aircraft.

Functional modelling of symmetrical multi-pulse auto- transformer rectifier units for aerospace applications (2015)
Journal Article
Yang, T., Bozhko, S., & Asher, G. (2015). Functional modelling of symmetrical multi-pulse auto- transformer rectifier units for aerospace applications. IEEE Transactions on Power Electronics, 30(9), https://doi.org/10.1109/TPEL.2014.2364682

This paper aims to develop a functional model of symmetrical multi-pulse Auto-Transformer Rectifier Units (ATRUs) for More-Electric Aircraft (MEA) applications. The ATRU is seen as the most reliable way readily to be applied in the MEA. Interestingly... Read More about Functional modelling of symmetrical multi-pulse auto- transformer rectifier units for aerospace applications.

Active front-end rectifier modelling using dynamic phasors for more-electric aircraft applications (2015)
Journal Article
Yang, T., Bozhko, S., & Asher, G. (2015). Active front-end rectifier modelling using dynamic phasors for more-electric aircraft applications. IET Electrical Systems in Transportation, 5(2), https://doi.org/10.1049/iet-est.2014.0030

The More-Electric Aircraft (MEA) has become a dominant trend for next-generation aircraft. The Electrical Power System (EPS) on-board may take many forms: AC, DC, hybrid, frequency-wild, variable voltage, together with the possibility of novel connec... Read More about Active front-end rectifier modelling using dynamic phasors for more-electric aircraft applications.

Fast functional modelling of diode-bridge rectifier using dynamic phasors (2015)
Journal Article
Yang, T., Bozhko, S., & Asher, G. (2015). Fast functional modelling of diode-bridge rectifier using dynamic phasors. IET Power Electronics, 8(6), https://doi.org/10.1049/iet-pel.2014.0414

In this paper, a functional model for diode-bridge rectifiers is developed based on the dynamic phasor concept. The developed model is suitable for accelerated simulation studies of the electric power systems under normal, unbalanced and line faulty... Read More about Fast functional modelling of diode-bridge rectifier using dynamic phasors.

Development of LFT-based models for robust stability analysis of a generic electrical power system over all operating conditions (2015)
Presentation / Conference Contribution
Sumsurooah, S., Odavic, M., & Bozhko, S. (2015). Development of LFT-based models for robust stability analysis of a generic electrical power system over all operating conditions. . https://doi.org/10.1109/ESARS.2015.7101478

This paper develops a method to analyse robust stability of a generic electrical power system for safe-critical applications over all operating conditions. Standard methods can guaranty stability under nominal conditions but do not take into account... Read More about Development of LFT-based models for robust stability analysis of a generic electrical power system over all operating conditions.

Dynamic phasor modelling of multi-generator variable frequency electrical power systems (2015)
Journal Article
Yang, T., Bozhko, S., Le-Peuvedic, J.-M., Asher, G., & Hill, C. I. (2016). Dynamic phasor modelling of multi-generator variable frequency electrical power systems. IEEE Transactions on Power Systems, 31(1), 563-571. https://doi.org/10.1109/TPWRS.2015.2399371

The Dynamic Phasor (DP) concept has been widely used in modelling electrical power systems. So far, the DP concept has been restricted to modelling systems with one single electrical source at a fixed fundamental frequency; either one generator or an... Read More about Dynamic phasor modelling of multi-generator variable frequency electrical power systems.

Wind turbine-energy storage control system for delivering constant demand power shared by DFIGs through droop characteristics (2009)
Presentation / Conference Contribution
Fazeli, M., Asher, G., Klumpner, C., Bozhko, S., Yao, L., & Bazargan, M. (2009). Wind turbine-energy storage control system for delivering constant demand power shared by DFIGs through droop characteristics. In 2009 13th European Conference on Power Electronics and Applications

This paper investigates embedding Energy Storage (ES) with multiple wind turbines in order to deliver to the grid a smooth and constant power as demanded by the system operator. The demand power is shared by DFIGs proportional to their ratings utiliz... Read More about Wind turbine-energy storage control system for delivering constant demand power shared by DFIGs through droop characteristics.

Modal analysis of a PMSG-based DC electrical power system in the more electric aircraft using eigenvalues sensitivity
Journal Article
Gao, F., Zheng, X., Bozhko, S., Hill, C. I., & Asher, G. (in press). Modal analysis of a PMSG-based DC electrical power system in the more electric aircraft using eigenvalues sensitivity. IEEE Transactions on Transportation Electrification, 1(1), https://doi.org/10.1109/TTE.2015.2427312

This paper deals with the modeling and small signal stability analysis of a DC-distribution electrical power system (EPS) sourced by a permanent magnet synchronous generator (PMSG). The topology employed here is one of the main candidates for future... Read More about Modal analysis of a PMSG-based DC electrical power system in the more electric aircraft using eigenvalues sensitivity.