Professor SERHIY BOZHKO's Outputs (195)

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. Dynamic output feedback linearizing control of saturated induction motors with torque per ampere ratio maximization. Presented at 2nd International Conference on Intelligent Energy and Power Systems (IEPS 2016)

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.

Stability and robustness analysis of a DC/DC power conversion system under operating conditions uncertainties (2015)
Presentation / Conference Contribution
Sumsurooah, S., Bozhko, S., Odavic, M., & Boroyevich, D. (2015, November). Stability and robustness analysis of a DC/DC power conversion system under operating conditions uncertainties. Presented at IECON 2015 - 41st Annual Conference of the IEEE Industrial Electronics Society, Yokohama, Japan

Stability margins of the switch-mode DC/DC power conversion systems are very sensitive to variations in load and system parameters. In aerospace applications these systems can be exposed to considerable variations in temperature that can cause large... Read More about Stability and robustness analysis of a DC/DC power conversion system under operating conditions uncertainties.

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, March). Development of LFT-based models for robust stability analysis of a generic electrical power system over all operating conditions. Presented at 2015 International Conference on Electrical Systems for Aircraft, Railway, Ship Propulsion and Road Vehicles (ESARS), Aachen, Germany

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.

Implementation of a multi-level Power Electronic Inverter library in Modelica (2014)
Presentation / Conference Contribution
Hill, C., Giangrande, P., Gerada, C., & Bozhko, S. Implementation of a multi-level Power Electronic Inverter library in Modelica. Presented at 10th International Modelica Conference 2014

This paper presents a newly developed Power Electronic Inverter library in Modelica. The library utilises a multi-level approach with increasing model complexity at progressively higher levels. All levels are fully interchangeable so as to provide a... Read More about Implementation of a multi-level Power Electronic Inverter library in Modelica.

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, September). Wind turbine-energy storage control system for delivering constant demand power shared by DFIGs through droop characteristics. Presented at 13th European Conference on Power Electronics and Applications, Barcelona, Spain

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.

More electric aircraft starter-generator system with utilization of hybrid modulated model predictive control
Presentation / Conference Contribution
Yoeh, S. S., Yang, T., Tarisciotti, L., Hill, C. I., & Bozhko, S. More electric aircraft starter-generator system with utilization of hybrid modulated model predictive control. Presented at International Conference on Electrical Systems for Aircraft, Railway, Ship Propulsion and Road Vehicles and the International Transportation Electrification Conference (ESARS ITEC 2016)

The current trend for future aircraft is the adoption of the More Electric Aircraft (MEA) concept. The electrical based starter-generator (S/G) system is one of the core ideas from the MEA concept. The PI based control scheme has been investigated in... Read More about More electric aircraft starter-generator system with utilization of hybrid modulated model predictive control.

Nonlinear aircraft engine model for future integrated power center development
Presentation / Conference Contribution
Enalou, H., Rashed, M., Kulsangcharoen, P., Hill, C. I., & Bozhko, S. Nonlinear aircraft engine model for future integrated power center development. Presented at ESARS Itec 2016

Aircraft engines, the prime source of on-board power, play a vital role within the electrical power generation system. In literature these are considerably simplified to rudimentary engine speed. In this paper, a nonlinear zero-dimension (0-D) order... Read More about Nonlinear aircraft engine model for future integrated power center development.