Outputs (18)

Experimental Validation of a quasi Z-Source Modular Multilevel Converter with DC Fault Blocking Capability (2019)
Journal Article
Khera, F., Klumpner, C., & Wheeler, P. (2021). Experimental Validation of a quasi Z-Source Modular Multilevel Converter with DC Fault Blocking Capability. IEEE Journal of Emerging and Selected Topics in Power Electronics, 9(2), 1951-1965. https://doi.org/10.1109/jestpe.2019.2955859

This paper considers the design methodology and the modulation of the quasi Z-source modular multilevel converter (qZS-MMC) with half bridge sub-modules and evaluates its performance in voltage boosting mode for medium voltage applications. The qZS-M... Read More about Experimental Validation of a quasi Z-Source Modular Multilevel Converter with DC Fault Blocking Capability.

Geometrical Visualization of Indirect Space Vector Modulation for Matrix Converters Operating with Abnormal Supplies (2019)
Journal Article
Guan, Q., Guan, Q., Wheeler, P., Simon, O., & Clare, J. (2019). Geometrical Visualization of Indirect Space Vector Modulation for Matrix Converters Operating with Abnormal Supplies. IET Power Electronics, 12(15), 4023-4033. https://doi.org/10.1049/iet-pel.2019.0406

Matrix Converters can be sensitive to abnormal supply conditions due to the absence of energy storage elements. This sensitivity can get worse when the Matrix Converters are modulated by a traditional Indirect Space Vector Modulation that assumes the... Read More about Geometrical Visualization of Indirect Space Vector Modulation for Matrix Converters Operating with Abnormal Supplies.

Model Predictive Control for Dual Active Bridge in Naval DC Microgrids Supplying Pulsed Power Loads Featuring Fast Transition and Online Transformer Current Minimization (2019)
Journal Article
Xiao, Q., Chen, L., Jia, H., Wheeler, P. W., & Dragicevic, T. (2020). Model Predictive Control for Dual Active Bridge in Naval DC Microgrids Supplying Pulsed Power Loads Featuring Fast Transition and Online Transformer Current Minimization. IEEE Transactions on Industrial Electronics, 67(6), 5197-5203. https://doi.org/10.1109/TIE.2019.2934070

Pulsed power loads (PPLs) are commonly incorporated in medium voltage dc microgrids on naval vessels. To mitigate their detrimental effects, dedicated energy storage systems can be installed and their converters need to have excellent disturbance rej... Read More about Model Predictive Control for Dual Active Bridge in Naval DC Microgrids Supplying Pulsed Power Loads Featuring Fast Transition and Online Transformer Current Minimization.

Torque Ripple Reduction in Sectored Multi Three-Phase Machines Based on PWM Carrier Phase Shift (2019)
Journal Article
Wang, X., Sala, G., Zhang, H., Gu, C., Buticchi, G., Formentini, A., …Wheeler, P. (2020). Torque Ripple Reduction in Sectored Multi Three-Phase Machines Based on PWM Carrier Phase Shift. IEEE Transactions on Industrial Electronics, 67(6), 4315-4325. https://doi.org/10.1109/TIE.2019.2931239

The interest in multiphase machines for high power and reliable drives has been growing, and many control algorithms have been proposed to improve their torque performance. This work presents a new approach to the modeling of a multi three-phase driv... Read More about Torque Ripple Reduction in Sectored Multi Three-Phase Machines Based on PWM Carrier Phase Shift.

An Improved Three-Phase Buck Rectifier Topology with Reduced Voltage Stress on Transistors (2019)
Journal Article
Lei, J., Feng, S., Zhao, J., Chen, W., Wheeler, P., & Shi, M. (2020). An Improved Three-Phase Buck Rectifier Topology with Reduced Voltage Stress on Transistors. IEEE Transactions on Power Electronics, 35(3), 2458-2466. https://doi.org/10.1109/tpel.2019.2931803

The three-phase buck rectifier (3ph-BR) is suitable for applications where a voltage step down function is required. In this paper, an improved 3ph-BR topology is proposed to reduce the voltage stress on the transistors. The freewheeling diode in the... Read More about An Improved Three-Phase Buck Rectifier Topology with Reduced Voltage Stress on Transistors.

A Unidirectional Insulated AC-DC Converter Based on the Hexverter and Multipulse-Rectifier (2019)
Journal Article
Lambert, G., Costabeber, A., Wheeler, P., & De Novaes, Y. R. (2020). A Unidirectional Insulated AC-DC Converter Based on the Hexverter and Multipulse-Rectifier. IEEE Transactions on Power Electronics, 35(3), 2363-2371. https://doi.org/10.1109/tpel.2019.2928555

This paper proposes an insulated two-stage ac-dc converter to be applied in unidirectional power flow systems. The two-stage structure is the combination of a Hexverter and a series-type 12 pulse rectifier. The key features of the proposed structure... Read More about A Unidirectional Insulated AC-DC Converter Based on the Hexverter and Multipulse-Rectifier.

A review of model predictive control strategies for matrix converters (2019)
Journal Article
Khosravi, M., Amirbande, M., Arab Khaburi, D., Rivera, M., Riveros, J., Rodriguez, J., …Wheeler, P. (2019). A review of model predictive control strategies for matrix converters. IET Power Electronics, 12(12), 3021-3032. https://doi.org/10.1049/iet-pel.2019.0212

Matrix converters are a well-known class of direct AC-AC power converter topologies that can be used in applications in which compact volume and low weight are necessary. For good performance, special attention should be paid to the control scheme us... Read More about A review of model predictive control strategies for matrix converters.

Steady-state error elimination and simplified implementation of direct source current control for matrix converter with model predictive control (2019)
Journal Article
Lei, J., Feng, S., Wheeler, P., Zhou, B., & Zhao, J. (2019). Steady-state error elimination and simplified implementation of direct source current control for matrix converter with model predictive control. IEEE Transactions on Power Electronics, 35(3), 3183-3194. https://doi.org/10.1109/tpel.2019.2928874

A matrix converter (MC) with model predictive control (MPC) based on the source reactive power control usually fails to show sinusoidal source currents. The analysis presented in this paper shows that this common combination of converter and control... Read More about Steady-state error elimination and simplified implementation of direct source current control for matrix converter with model predictive control.

Modelling of reduced electromechanical interaction system for aircraft applications (2019)
Journal Article
Ahumada, C., & Wheeler, P. (2019). Modelling of reduced electromechanical interaction system for aircraft applications. IET Electric Power Applications, 13(7), 1061-1070. https://doi.org/10.1049/iet-epa.2019.0122

© 2019 Institution of Engineering and Technology. All rights reserved. Rotational systems such as aircraft engine drivetrains are subject to vibrations that can damage shafts. Torsional vibrations in drivetrains can be excited by the connection of lo... Read More about Modelling of reduced electromechanical interaction system for aircraft applications.

Advanced control methods for power converters in distributed generation systems and microgrids (2019)
Journal Article
Dragičević, T., Vazquez, S., & Wheeler, P. (2019). Advanced control methods for power converters in distributed generation systems and microgrids. IEEE Transactions on Industrial Electronics, 66(11), 8866 - 8869. https://doi.org/10.1109/TIE.2019.2914846

The twenty-two papers in this special section focus on flexible control of power converters which serve as interfaces between the distributed generation (DG) units and the legacy alternating current (ac) grid or the ac or direct current (dc) microgri... Read More about Advanced control methods for power converters in distributed generation systems and microgrids.

Vector control strategies to enable equal frequency operation of the modular multilevel matrix converter (2019)
Journal Article
Diaz, M., Espinosa, M., Rojas, F., Wheeler, P., & Cardenas, R. (2019). Vector control strategies to enable equal frequency operation of the modular multilevel matrix converter. Journal of Engineering, 2019(17), 4214-4219. https://doi.org/10.1049/joe.2018.8028

The modular multilevel matrix converter (M3C) is a power converter topology for ac to ac conversion that is suitable for high-power applications. The control of this converter is complex, particularly if ac system frequencies are similar. In these ca... Read More about Vector control strategies to enable equal frequency operation of the modular multilevel matrix converter.

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.

Flux control modulation for the dual active bridge DC/DC converter (2019)
Journal Article
Fritz, N., Rashed, M., Bozhko, S., Cuomo, F., & Wheeler, P. (2019). Flux control modulation for the dual active bridge DC/DC converter. Journal of Engineering, 2019(17), 4353-4358. https://doi.org/10.1049/joe.2018.8014

This paper introduces a modulation technique for the single-phase dual active bridge (DAB) in which the switching frequency and transformer flux linkage are modulated to achieve improved power transfer characteristics and reduced converter losses. By... Read More about Flux control modulation for the dual active bridge DC/DC converter.

Energy Storage Sizing Strategy for Grid-Tied PV Plants under Power Clipping Limitations (2019)
Journal Article
Müller, N., Kouro, S., Zanchetta, P., Wheeler, P., Bittner, G., & Girardi, F. (2019). Energy Storage Sizing Strategy for Grid-Tied PV Plants under Power Clipping Limitations. Energies, 12(9), Article 1812. https://doi.org/10.3390/en12091812

This paper presents an analyses of an Energy Storage System (ESS) for grid-tied photovoltaic (PV) systems, in order to harness the energy usually lost due to PV array oversizing. A real case of annual PV power generation analysis is presented to illu... Read More about Energy Storage Sizing Strategy for Grid-Tied PV Plants under Power Clipping Limitations.

A three-phase modular isolated matrix converter (2019)
Journal Article
Nasir, U., Costabeber, A., Rivera, M., Wheeler, P., & Clare, J. (2019). A three-phase modular isolated matrix converter. IEEE Transactions on Power Electronics, 34(12), 11760-11773. https://doi.org/10.1109/TPEL.2019.2909681

This paper discusses the analysis, design and experimental validation of a Modular Isolated Matrix Converter (MIMC), including modulation, commutation and control. The MIMC topology is a single-stage high power density AC/AC converter which is attrac... Read More about A three-phase modular isolated matrix converter.

Novel Motor-Shaped Rotational Inductor for Motor Drive Applications (2019)
Journal Article
Odhano, S., Khowja, M. R., Gerada, C., Vakil, G., Abebe, R., Odhano, S. A., …Wheeler, P. (2020). Novel Motor-Shaped Rotational Inductor for Motor Drive Applications. IEEE Transactions on Industrial Electronics, 67(3), 1844-1854. https://doi.org/10.1109/tie.2019.2907512

This paper presents a validation of the novel motor-shaped rotational inductor. To validate the concept, 12 slots 2 poles rotational inductor is tested at different supply frequencies and rotor speeds. Experimental results have shown that the iron lo... Read More about Novel Motor-Shaped Rotational Inductor for Motor Drive Applications.

Fixed switching frequency predictive control of an asymmetric source dual inverter system with a floating bridge for multilevel operation (2019)
Journal Article
Chowdhury, S., Wheeler, P., Huang, Z., Rivera, M., & Gerada, C. (2019). Fixed switching frequency predictive control of an asymmetric source dual inverter system with a floating bridge for multilevel operation. IET Power Electronics, 12(3), 450-457. https://doi.org/10.1049/iet-pel.2018.5395

This study proposes a modified modulated model predictive control (MMPC) scheme to control an open-end winding induction motor drive using an asymmetric source dual inverter with one floating bridge. The control algorithm uses a modulation algorithm... Read More about Fixed switching frequency predictive control of an asymmetric source dual inverter system with a floating bridge for multilevel operation.

New modulation scheme for bidirectional qZS modular multi-level converters (2019)
Journal Article
Khera, F. A., Klumpner, C., & Wheeler, P. W. (2019). New modulation scheme for bidirectional qZS modular multi-level converters. Journal of Engineering, 2019(17), 3836-3841. https://doi.org/10.1049/joe.2018.8020

This study proposes a dedicated modulation scheme for a bidirectional quasi-Z-source (qZS) modular multi-level converter. The operation principle and a suitable pulse-width modulation method are proposed. The relation between the modulation index and... Read More about New modulation scheme for bidirectional qZS modular multi-level converters.