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Single Stage Dual Active Bridge AC-DC Converter with Active Power Decoupling (2018)
Presentation / Conference Contribution
Gottardo, D., De Lillo, L., Empringham, L., Costabeber, A., & Chen, L. (2018, June). Single Stage Dual Active Bridge AC-DC Converter with Active Power Decoupling. Presented at 2018 International Symposium on Power Electronics, Electrical Drives, Automation and Motion (SPEEDAM), Amalfi, Italy

The paper introduces a new a isolated DC-AC DAB converter topology, capable of active power decoupling on the AC side of the transformer, made up of two full bridges with no additional active component. The differential voltage modulated by the DC-si... Read More about Single Stage Dual Active Bridge AC-DC Converter with Active Power Decoupling.

Matrix converter open circuit fault behavior analysis and diagnosis with a model predictive control strategy (2018)
Journal Article
Zhang, J., Dan, H., Empringham, L., De Lillo, L., & Wheeler, P. (2018). Matrix converter open circuit fault behavior analysis and diagnosis with a model predictive control strategy. IEEE Journal of Emerging and Selected Topics in Power Electronics, 6(4), 1831-1839. https://doi.org/10.1109/jestpe.2018.2856460

A novel fast and reliable open circuit fault diagnosis strategy for a Matrix Converter with a Finite Control Set Model Predictive Control strategy is proposed in this paper. Current sensors are located ahead of the clamp circuit to measure the output... Read More about Matrix converter open circuit fault behavior analysis and diagnosis with a model predictive control strategy.

Cost effective direct-substrate jet impingement cooling concept for power application (2018)
Presentation / Conference Contribution
Mouawad, B., Abebe, R., Skuriat, R., Li, J., De Lillo, L., Empringham, L., Johnson, C. M., Roberts, A., Clarke, R., & Haynes, G. (2018, June). Cost effective direct-substrate jet impingement cooling concept for power application. Presented at PCIM 2018 - International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management

Direct substrate jet impingement cooling can eliminate the use of the baseplate and significantly reduce the weight and volume of conventional thermal management solutions. This work demonstrates a cost-effective manufacturing approach based on print... Read More about Cost effective direct-substrate jet impingement cooling concept for power application.

Direct predictive current-error vector control for a direct matrix converter (2018)
Journal Article
Vijayagopal, M., Silva, C. A., Empringham, L., & De Lillo, L. (2019). Direct predictive current-error vector control for a direct matrix converter. IEEE Transactions on Power Electronics, 34(2), 1925-1935. https://doi.org/10.1109/TPEL.2018.2833495

This paper proposes a novel control strategy for matrix converters which is coined “Direct Predictive Current-error Vector Control”. The proposed control method retains the advantageous features of both a modulation scheme and of a predictive based c... Read More about Direct predictive current-error vector control for a direct matrix converter.

Novel silicon carbide integrated power module for EV application (2018)
Presentation / Conference Contribution
Mouawad, B., Espina, J., Li, J., Empringham, L., & Johnson, C. M. (2018, May). Novel silicon carbide integrated power module for EV application. Presented at WiPDA 2018 - IEEE Workshop on Wide Bandgap Power Devices and Applications in Asia

The successful penetration of Electric Vehicles (EVs) into the global automotive markets requires the developments of cost effective, high performance and high integration power electronic systems. The present work is concerned with the structural in... Read More about Novel silicon carbide integrated power module for EV application.

Next generation integrated drive: a novel thermal and electrical integration technique for high power density converters used in automotive drive systems (2018)
Presentation / Conference Contribution
Ahmadi, B., Espina, J., De Lillo, L., Abebe, R., Empringham, L., & Johnson, C. M. Next generation integrated drive: a novel thermal and electrical integration technique for high power density converters used in automotive drive systems. Presented at 9th International Conference on Power Electronics, Machines and Drives (PEMD 2018)

In this paper, an innovative method of electro-thermal integration of a drive system is presented. Important challenges of this integration consist of, firstly coupled thermal design of switching power modules and PM electric motor and secondly integ... Read More about Next generation integrated drive: a novel thermal and electrical integration technique for high power density converters used in automotive drive systems.

Design and testing of electromechanical actuator for aerospace applications (2018)
Presentation / Conference Contribution
Papini, L., Connor, P., Patel, C., Empringham, L., Gerada, C., & Wheeler, P. (2018, January). Design and testing of electromechanical actuator for aerospace applications. Presented at 2018 25th International Workshop on Electric Drives: Optimization in Control of Electric Drives (IWED), Moscow, Russia

Electromechanical actuators are gaining interest in the aerospace industry within the More Electrical Aircraft (MEA) architecture. The end-goal of fully electric aircraft includes Electromechanical actuation for flight control systems. The design and... Read More about Design and testing of electromechanical actuator for aerospace applications.

Matrix converter open circuit fault diagnosis with asymmetric one zero SVM (2017)
Presentation / Conference Contribution
Zhang, J., Empringham, L., De Lillo, L., Dan, H., & Wheeler, P. Matrix converter open circuit fault diagnosis with asymmetric one zero SVM. Presented at 2017 IEEE Energy Conversion Congress and Exposition (ECCE)

An open-circuit fault detection and diagnosis strategy for a direct matrix converter is proposed in this paper. The current recirculating path during an open circuit condition is considered in detail with the aim of contributing more expert knowledge... Read More about Matrix converter open circuit fault diagnosis with asymmetric one zero SVM.

Highly-integrated power cell for high-power wide band-gap power converters (2017)
Presentation / Conference Contribution
Espina, J., Ahmadi, B., Empringham, L., De Lillo, L., & Johnson, C. M. Highly-integrated power cell for high-power wide band-gap power converters. Presented at 2017 IEEE 3rd International Future Energy Electronics Conference and ECCE Asia (IFEEC 2017 - ECCE Asia)

The fast switching speeds and low specific conduction losses of wide band-gap semiconductors allow the realisation of high-frequency, high power-density switching converters with dramatically reduced passive component requirements compared to Silicon... Read More about Highly-integrated power cell for high-power wide band-gap power converters.