All Outputs (46138)

Designing an Advanced Electrical Motor for Propulsion of Electric Aircraft
Presentation / Conference Contribution
Golovanov, D., Xu, Z., Gerada, D., Page, A., Gerada, C., & Sawata, T. (2019, August). Designing an Advanced Electrical Motor for Propulsion of Electric Aircraft. Presented at AIAA Propulsion and Energy Forum and Exposition, 2019, Indianapolis, IN

A prototype motor rated for 500 kW 3,000 rpm has been developed for aircraft electric propulsion. The design of the motor was optimized using a coupled parameter problem of electromagnetic, mechanical and thermal performances. A high power density of... Read More about Designing an Advanced Electrical Motor for Propulsion of Electric Aircraft.

Eddy Current Loss Control in High Speed PM Starter-Generator
Presentation / Conference Contribution
Zhang, X., Zhang, H., Gerada, C., Gerada, D., Li, J., Xu, Z., & Liu, C. (2019, April). Eddy Current Loss Control in High Speed PM Starter-Generator. Presented at 2019 IEEE Workshop on Electrical Machines Design, Control and Diagnosis (WEMDCD), Athens, Greece

This paper highlights the advancement in high speed generation applications along with describing the state of the art in the machine design technologies enabling such an application uptake. Via the investigating on a 250kW high speed PM starter-gene... Read More about Eddy Current Loss Control in High Speed PM Starter-Generator.

Comparative Analysis of AC losses with round magnet wire and Litz wire winding of a High – Speed PM Machine
Presentation / Conference Contribution
Bardalai, A., Zhang, X., Zou, T., Gerada, D., Li, J., & Gerada, C. (2019, August). Comparative Analysis of AC losses with round magnet wire and Litz wire winding of a High – Speed PM Machine. Presented at 2019 22nd International Conference on Electrical Machines and Systems (ICEMS), Harbin, China

The growing trend of high speed, high power density machines for applications such as EVs, aerospace and machine tools demand these machines to work at higher electrical frequencies. Meanwhile, increasing the fundamental frequency leads to pronounced... Read More about Comparative Analysis of AC losses with round magnet wire and Litz wire winding of a High – Speed PM Machine.

Thermal Barrier for High-Voltage Permanent Magnet Synchronous Motor with Air-cooling Hybrid Ventilation Systems
Presentation / Conference Contribution
Zhang, X., Zhang, H., Li, W., Gerada, C., Gerada, D., & Li, J. (2019, August). Thermal Barrier for High-Voltage Permanent Magnet Synchronous Motor with Air-cooling Hybrid Ventilation Systems. Presented at 2019 22nd International Conference on Electrical Machines and Systems (ICEMS), Harbin, China

This paper addresses the thermal network improvement in a 315 kW high-voltage solid rotor permanent magnet synchronous motor, with a hybrid air-cooling system, by the proposed thermal barrier. The multi-coupled fields, as electromagnetic fields, flui... Read More about Thermal Barrier for High-Voltage Permanent Magnet Synchronous Motor with Air-cooling Hybrid Ventilation Systems.

Multi-physics Design Optimisation of PM-assisted Synchronous Reluctance Motor for Traction Application
Presentation / Conference Contribution
Al-Ani, M., Walker, A., Vakil, G., Ramanathan, R., Zou, T., La Rocca, S., La Rocca, A., Gerada, D., Gerada, C., Paciura, K., & McQueen, A. (2019, October). Multi-physics Design Optimisation of PM-assisted Synchronous Reluctance Motor for Traction Application. Presented at IECON 2019 - 45th Annual Conference of the IEEE Industrial Electronics Society, Lisbon, Portugal

Recently, the synchronous reluctance machine limits have been pushed toward meeting the requirements of traction applications. A skilled electromagnetic architecture of a synchronous reluctance machine with the help of permanent magnets can push the... Read More about Multi-physics Design Optimisation of PM-assisted Synchronous Reluctance Motor for Traction Application.

Equivalent Slot Thermal Conductivity and Back-iron Extension Effects on Machine Cooling
Presentation / Conference Contribution
Zhang, F., Gerada, D., Xu, Z., Zhang, H., & Gerada, C. (2019, August). Equivalent Slot Thermal Conductivity and Back-iron Extension Effects on Machine Cooling. Presented at 2019 22nd International Conference on Electrical Machines and Systems (ICEMS), Harbin, China

Back-iron Extension (BIE) is an effective thermal management technique which reduces the winding temperatures by projecting part of the back iron into the center of slot, thereby shortening the heat transfer path between the coil and back iron. Based... Read More about Equivalent Slot Thermal Conductivity and Back-iron Extension Effects on Machine Cooling.

Sensitivity Analysis of Machine Components Thermal Properties Effects on Winding Temperature
Presentation / Conference Contribution
Zhang, F., Gerada, D., Xu, Z., Zhang, H., & Gerada, C. (2019, August). Sensitivity Analysis of Machine Components Thermal Properties Effects on Winding Temperature. Presented at 2019 22nd International Conference on Electrical Machines and Systems (ICEMS), Harbin, China

This paper investigates the sensitivity analysis of winding temperature to key parameters in electrical machine thermal design. With a validated 3D thermal model based on an existing 75kW traction machine for an electric vehicle, the methodology of t... Read More about Sensitivity Analysis of Machine Components Thermal Properties Effects on Winding Temperature.

Modelling and Analysis of an Aircraft On-board Electric Taxiing System
Presentation / Conference Contribution
Lukic, M., Giangrande, P., Klumpner, C., & Galea, M. (2019, August). Modelling and Analysis of an Aircraft On-board Electric Taxiing System. Presented at 2019 22nd International Conference on Electrical Machines and Systems (ICEMS), Harbin, China

This paper presents a model that enables analysis and design validation of an aircraft on-board electric taxiing system. A detailed model, which includes power electronics, electrical machine and mechanical drivetrain, is first developed and discusse... Read More about Modelling and Analysis of an Aircraft On-board Electric Taxiing System.

Analysis of Energy Storage System Requirements for Aircraft Electric Taxiing Operations
Presentation / Conference Contribution
Lukic, M., Giangrande, P., Klumpner, C., & Galea, M. (2019, October). Analysis of Energy Storage System Requirements for Aircraft Electric Taxiing Operations. Presented at IECON 2019 - 45th Annual Conference of the IEEE Industrial Electronics Society, Lisbon, Portugal

This paper focuses on evaluating the energy and power requirements of a specific aircraft on-board electric taxiing (ET) system. The developed model of the investigated system is used to determine the requisites for a typical taxiing profile mission... Read More about Analysis of Energy Storage System Requirements for Aircraft Electric Taxiing Operations.

Hybrid Magnet - Field Winding Solutions for Exciters of Synchronous Generators
Presentation / Conference Contribution
Decuzzi, G., Nuzzo, S., Bolognesi, P., Giangrande, P., & Galea, M. (2019, May). Hybrid Magnet - Field Winding Solutions for Exciters of Synchronous Generators. Presented at IEEE International Electric Machines & Drives Conference (IEMDC 2019), San Diego, CA, USA

For power generation purposes, wound-field synchronous generators are often preferred to permanent magnet machines, due to the need of controlling the field winding voltage and current for guaranteeing a constant voltage at the generator's armature t... Read More about Hybrid Magnet - Field Winding Solutions for Exciters of Synchronous Generators.

Fast Self-Tuning Decentralized Variable Frequency Optimal Controller Design for Three-Phase Embedded Grids
Presentation / Conference Contribution
Dewar, D., Rhoten, J., Formentini, A., & Zanchetta, P. (2019, October). Fast Self-Tuning Decentralized Variable Frequency Optimal Controller Design for Three-Phase Embedded Grids. Presented at IECON 2019 - 45th Annual Conference of the IEEE Industrial Electronics Society, Lisbon, Portugal

In this paper, a novel approach to variable frequency optimal controller design for the application of aircraft embedded grids is presented. Aircraft power grids by industrial standards need to be able to operate across a range of frequencies. Often,... Read More about Fast Self-Tuning Decentralized Variable Frequency Optimal Controller Design for Three-Phase Embedded Grids.

Smart Current Limitation Technique for a Multiphase Bearingless Machine with Combined Winding System
Presentation / Conference Contribution
Wen, Z., Valente, G., Formentini, A., Papini, L., Zanchetta, P., & Gerada, C. (2019, September). Smart Current Limitation Technique for a Multiphase Bearingless Machine with Combined Winding System. Presented at 2019 IEEE Energy Conversion Congress and Exposition (ECCE), Baltimore, MD, USA

This paper presents a current limitation technique for a multiphase bearingless machine featuring a combined winding system. This winding structure allows each machine phase to produce both suspension force and motoring torque. Compared to more conve... Read More about Smart Current Limitation Technique for a Multiphase Bearingless Machine with Combined Winding System.

Transfer Function Based Input Impedance Determination of Triple Active Bridge Converter
Presentation / Conference Contribution
Yang, J., Buticchi, G., Gu, C., Günter, S., Yan, H., & Wheeler, P. (2019, October). Transfer Function Based Input Impedance Determination of Triple Active Bridge Converter. Presented at IECON 2019 - 45th Annual Conference of the IEEE Industrial Electronics Society, Lisbon, Portugal

The concept of multiport dc-dc converter was proposed to reduce the conversion stages of dc microgrid on more electric aircraft (MEA). The structure of multiport dc-dc converter is basically developed from the dual active bridge (DAB) converter becau... Read More about Transfer Function Based Input Impedance Determination of Triple Active Bridge Converter.

Impedance-based Sensitivity Analysis of Dual Active Bridge DC-DC Converter
Presentation / Conference Contribution
Yang, J., Buticchi, G., Yan, H., Gu, C., Zhang, H., & Wheeler, P. (2019, April). Impedance-based Sensitivity Analysis of Dual Active Bridge DC-DC Converter. Presented at IEEE 13th International Conference on Compatibility, Power Electronics and Power Engineering (CPE-POWERENG 2019)), Sonderborg, Denmark

The sensitivity analysis of a circuit reflects the robustness of this circuit to the relevant parameters. This paper investigates the sensitivity of input impedance of DAB converter, which is widely adopted in solid-state transformer (SST) and dc mic... Read More about Impedance-based Sensitivity Analysis of Dual Active Bridge DC-DC Converter.

Grid Impedance Identification and Structured-h2 Optimization Based Controller Design of Active Front-end in Embedded AC Networks
Presentation / Conference Contribution
Li, K., Dewar, D., Formentini, A., Zanchetta, P., & Wheeler, P. (2019, September). Grid Impedance Identification and Structured-h2 Optimization Based Controller Design of Active Front-end in Embedded AC Networks. Presented at 2019 IEEE Energy Conversion Congress and Exposition (ECCE), Baltimore, MD, USA

The increasing use of power electronics systems and distributed generation in modern power networks has raised important issues regarding the effects that inter-connected converters systems can have on the performance and stability of the whole grid.... Read More about Grid Impedance Identification and Structured-h2 Optimization Based Controller Design of Active Front-end in Embedded AC Networks.

Predictive Voltage Control Operating at Fixed Switching Frequency of a Neutral-Point Clamped Converter
Presentation / Conference Contribution
Herrera, F., Cárdenas, R., Rivera, M., Riveros, J. A., & Wheeler, P. (2019, December). Predictive Voltage Control Operating at Fixed Switching Frequency of a Neutral-Point Clamped Converter. Presented at 2019 IEEE 15th Brazilian Power Electronics Conference and 5th IEEE Southern Power Electronics Conference (COBEP/SPEC), Sao Paulo, Brazil

Uninterruptible power supply units are system formed by power electronics converters to supply sinusoidal voltages to feed critical loads. In this paper, a fixed switching frequency model predictive control strategy is presented for the control of th... Read More about Predictive Voltage Control Operating at Fixed Switching Frequency of a Neutral-Point Clamped Converter.

Multi-modular scalable DC-AC power converter for current injection to the grid based on predictive voltage control
Presentation / Conference Contribution
Toledo, S., Rivera, M., Maqueda, E., Ayala, M., Pacher, J., Romero, C., Gregor, R., Dragicevic, T., & Wheeler, P. (2019, December). Multi-modular scalable DC-AC power converter for current injection to the grid based on predictive voltage control. Presented at 15th Brazilian Power Electronics Conference and 5th IEEE Southern Power Electronics Conference (COBEP/SPEC 2019), Sao Paolo, Brazil

Increasing world electrical energy demand make necessary to develop new efficient and reliable schemes for power injection to the existing grid under distributed generation frames. In this work a novel DC-AC control scheme is proposed, which is based... Read More about Multi-modular scalable DC-AC power converter for current injection to the grid based on predictive voltage control.

Modulated Model Predictive Current Control for PMSM Operating With Three-level NPC Inverter
Presentation / Conference Contribution
Wang, Q., Rivera, M., Riveros, J. A., & Wheeler, P. (2019, December). Modulated Model Predictive Current Control for PMSM Operating With Three-level NPC Inverter. Presented at 15th Brazilian Power Electronics Conference and 5th IEEE Southern Power Electronics Conference (COBEP/SPEC 2019), San Paolo, Brazil

In finite control set model predictive control (FCS-MPC) strategy only one basic voltage vector is to be selected in per periodic time, which causes big current ripple as well as the torque ripple of permanent magnet synchronous motor (PMSM). To solv... Read More about Modulated Model Predictive Current Control for PMSM Operating With Three-level NPC Inverter.

Predictive Voltage Control of the Direct Matrix Converter applied to Grid Current Injection
Presentation / Conference Contribution
Toledo, S., Rivera, M., Dragicevic, T., Caballero, D., Wheeler, P., & Gregor, R. (2019, November). Predictive Voltage Control of the Direct Matrix Converter applied to Grid Current Injection. Presented at IEEE CHILEAN Conference on Electrical, Electronics Engineering, Information and Communication Technologies (CHILECON 2019)), Valparaiso, Chile

Predictive control applied to direct matrix converter provide a feasible option to control the output voltage of a generation system with good performance. In this work a predictive voltage control strategy is proposed as the inner loop control of an... Read More about Predictive Voltage Control of the Direct Matrix Converter applied to Grid Current Injection.

A Power Generation Center with Back-to-back Converter Considering Post-fault Operation for MEA Application
Presentation / Conference Contribution
Lang, X., Yang, T., Enalou, H. B., Wheeler, P., & Bozhko, S. (2019, August). A Power Generation Center with Back-to-back Converter Considering Post-fault Operation for MEA Application. Presented at 2019 22nd International Conference on Electrical Machines and Systems (ICEMS), Harbin, China

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.