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Design and construction of a co-planar power bus interconnect for low inductance switching (2017)
Presentation / Conference Contribution
Lin, X., Li, J., & Johnson, M. (2017, April). Design and construction of a co-planar power bus interconnect for low inductance switching. Presented at 2017 IEEE International Workshop On Integrated Power Packaging (IWIPP), Delft, Netherlands

A co-planar tab-slot type of interconnect demonstrator for connecting power switching devices and DC bus capacitors has been designed and constructed, aimed at low inductance switching. The demonstrator is composed of a double-sided tab connector and... Read More about Design and construction of a co-planar power bus interconnect for low inductance switching.

A novel multi-modular series HVDC tap (2017)
Presentation / Conference Contribution
Tang, Y., Watson, A., Wheeler, P., Farr, E., & Feldman, R. (2017, February). A novel multi-modular series HVDC tap. Presented at 13th IET International Conference on AC and DC Power Transmission, ACDC 2017, Manchester, UK

Tapping energy from a HVDC transmission line to serve small remote communities has been considered by researchers and HVDC manufacturers since the 1960s. Many HVDC taps proposed consider the performance of diodes, Thyristors and GTOs and the utilizat... Read More about A novel multi-modular series HVDC tap.

Influence of gate bias on the avalanche ruggedness of SiC power MOSFETs (2017)
Presentation / Conference Contribution
Fayyaz, A., Castellazzi, A., Romano, G., Riccio, M., Urresti, J., & Wright, N. Influence of gate bias on the avalanche ruggedness of SiC power MOSFETs. Presented at 29th International Symposium on Power Semiconductor Devices and IC's (ISPSD)

This paper investigates the effect of negative gate bias voltage (VGS) on the avalanche breakdown robustness of commercial state-of-the-art silicon carbide (SiC) power MOSFETs. The device’s ability to withstand energy dissipation during avalanche reg... Read More about Influence of gate bias on the avalanche ruggedness of SiC power MOSFETs.

Preselection algorithm based on predictive control for direct matrix converter (2017)
Journal Article
Dan, H., Zhu, Q., Peng, T., Yao, S., & Wheeler, P. (2017). Preselection algorithm based on predictive control for direct matrix converter. IET Electric Power Applications, 11(5), 768-775. https://doi.org/10.1049/iet-epa.2016.0473

This paper presents an enhanced predictive control strategy to reduce the calculation effort for direct matrix converters. The main idea is to preselect the switching states to decrease the calculation effort during each sample period. The proposed p... Read More about Preselection algorithm based on predictive control for direct matrix converter.

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.

A fractional slot multiphase air-core compulsator with concentrated winding (2017)
Journal Article
Zhao, W., Wu, S., Cui, S., Gerada, C., Zhang, H., & Xu, Z. (2017). A fractional slot multiphase air-core compulsator with concentrated winding. IEEE Transactions on Plasma Science, 45(7), 1387-1393. https://doi.org/10.1109/TPS.2017.2705243

Compulsator is a specially designed generator capa¬ble of delivering high current pulses to a low-impedance load, such as the electromagnetic railgun. In order to increase the tip speed of the rotor, advanced composite materials have been used in the... Read More about A fractional slot multiphase air-core compulsator with concentrated winding.

A hybrid analytical-numerical approach for the analysis of salient-pole synchronous generators with a symmetrical damper cage (2017)
Presentation / Conference Contribution
Nuzzo, S., Bolognesi, P., Galea, M., & Gerada, C. A hybrid analytical-numerical approach for the analysis of salient-pole synchronous generators with a symmetrical damper cage. Presented at IEEE International Electric Machines and Drives Conference (IEMDC 2017)

The equivalent circuit approach has been widely exploited for the theoretical analysis of electromagnetic devices. However, in the field of classical wound-field synchronous generators, the presence of the damper cage complicates the analysis of such... Read More about A hybrid analytical-numerical approach for the analysis of salient-pole synchronous generators with a symmetrical damper cage.

Design optimization of integrated rotational inductor for high-speed AC drive applications (2017)
Presentation / Conference Contribution
Khowja, M. R., Gerada, C., Vakil, G., Patel, C., & Wheeler, P. Design optimization of integrated rotational inductor for high-speed AC drive applications. Presented at IEEE International Electric Machines and Drives Conference

In order to make an efficient and power dense overall system, a close physical and functional integration of passive components is required instead of having a separate sub¬system for passives. Such power dense system is vital in aerospace and marine... Read More about Design optimization of integrated rotational inductor for high-speed AC drive applications.

Realising robust low speed sensorless PMSM control using current derivatives obtained from standard current sensors (2017)
Presentation / Conference Contribution
Hind, D., Li, C., Sumner, M., & Gerada, C. Realising robust low speed sensorless PMSM control using current derivatives obtained from standard current sensors. Presented at 2017 IEEE International Electric Machines and Drives Conference (IEMDC)

This paper describes the implementation of a simple, robust and cost-effective sensorless control technique for PMSM machines. The method uses stator current derivative measurements made in response to certain PWM vectors. In this work the derivative... Read More about Realising robust low speed sensorless PMSM control using current derivatives obtained from standard current sensors.