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Mild hybridisation of turboprop engine with high-power-density integrated electric drives (2022)
Journal Article
Cossart, G., Chen, Y., Yang, T., Khowja, M., La Rocca, A., Nasir, U., …Wheeler, P. (2022). Mild hybridisation of turboprop engine with high-power-density integrated electric drives. IEEE Transactions on Transportation Electrification, 8(4), 4148-4162. https://doi.org/10.1109/TTE.2022.3160153

This paper shares with the aerospace community a case study of turboprop mild hybridisation using a recently developed integrated drive system in the University of Nottingham, UK, within the ACHIEVE project under EU H2020 CleanSky 2 program (project... Read More about Mild hybridisation of turboprop engine with high-power-density integrated electric drives.

A SiC based 2-Level Power Converter for Shape-and-Space-Restricted Aerospace Applications (2019)
Conference Proceeding
Nasir, U., Chowdhury, S., La Rocca, A., Chen, Y., Yang, T., Wheeler, P., …Bozhko, S. (2019). A SiC based 2-Level Power Converter for Shape-and-Space-Restricted Aerospace Applications. In Proceedings on the 2019 IEEE 13th International Conference on Power Electronics and Drive Systems (PEDS) (1-7). https://doi.org/10.1109/PEDS44367.2019.8998907

Recent advancements in the power electronic device technologies, such as wide-band-gap devices including Silicon-Carbide (SiC) and Galium-Nitride (GaN), are acting as an enabling factor in development of compact power electronic systems. More specifi... Read More about A SiC based 2-Level Power Converter for Shape-and-Space-Restricted Aerospace 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.

A Twin Spool Engine Emulator for the Study of Power Exchange Idea (2018)
Conference Proceeding
Enalou, H. B., Rashed, M., Kulsangcharoen, P., Chowdhury, S., & Bozhko, S. (2018). A Twin Spool Engine Emulator for the Study of Power Exchange Idea. In 2018 IEEE International Conference on Electrical Systems for Aircraft, Railway, Ship Propulsion and Road Vehicles & International Transportation Electrification Conference (ESARS-ITEC) (1-8). https://doi.org/10.1109/ESARS-ITEC.2018.8607540

The More Electric Aircraft (MEA) engine, with electrical machines on both HP and LP shafts, makes it possible to transfer power electrically from one spool to another. Preliminary results have shown considerable improvement in turbofan performance in... Read More about A Twin Spool Engine Emulator for the Study of Power Exchange Idea.

Experimental study of power exchange using a twin spool engine emulator (2018)
Conference Proceeding
Enalou, H. B., Rashed, M., Kulsangcharoen, P., Chowdhury, S., & Bozhko, S. (2018). Experimental study of power exchange using a twin spool engine emulator

The More Electric Aircraft (MEA) nad , with electrical machines on both HP and LP shafts and the advancements in power electronics, makes it possible to transfer power electrically from one spool to another. Preliminary results have shown considerabl... Read More about Experimental study of power exchange using a twin spool engine emulator.

An active modulation scheme to boost voltage utilisation of the dual converter with a floating bridge (2018)
Journal Article
Huang, Z., Yang, T., Wheeler, P., Galea, M., Giangrande, P., & Chowdhury, S. (2019). An active modulation scheme to boost voltage utilisation of the dual converter with a floating bridge. IEEE Transactions on Industrial Electronics, 66(7), 5623-5633. https://doi.org/10.1109/TIE.2018.2873539

This paper proposes a capacitor voltage regulation method for the dual converter with a floating bridge for aerospace applications. This topology has previously been reported, but with a constrained voltage utilisation factor due to the need for capa... Read More about An active modulation scheme to boost voltage utilisation of the dual converter with a floating bridge.

Full SiC Version of the EDA5 Inverter (2017)
Conference Proceeding
Chowdhury, S., Gurpinar, E., & Castellazzi, A. (2017). Full SiC Version of the EDA5 Inverter. In 2017 IEEE 3rd International Future Energy Electronics Conference and ECCE Asia (IFEEC 2017 - ECCE Asia) (406-411). https://doi.org/10.1109/IFEEC.2017.7992072

Recently, a novel hybrid multilevel inverter topology, the EDA5, was presented. The novel inverter topology comprises of two floating capacitors and 16 active switches to achieve five-level output voltage waveform and achieves higher efficiency at lo... Read More about Full SiC Version of the EDA5 Inverter.

Model predictive control for a dual active bridge inverter with a floating bridge (2016)
Journal Article
Chowdhury, S., Wheeler, P., Gerada, C., & Patel, C. (2016). Model predictive control for a dual active bridge inverter with a floating bridge. IEEE Transactions on Industrial Electronics, 63(9), 5558-5568. https://doi.org/10.1109/TIE.2016.2564949

This paper presents a Model Predictive Control technique applied to a dual active bridge inverter where one of the bridges is floating. The proposed floating bridge topology eliminates the need for isolation transformer in a dual inverter system and... Read More about Model predictive control for a dual active bridge inverter with a floating bridge.

A multi-level converter with a floating bridge for open-ended winding motor drive applications (2016)
Journal Article
Chowdhury, S., Wheeler, P., Patel, C., & Gerada, C. (2016). A multi-level converter with a floating bridge for open-ended winding motor drive applications. IEEE Transactions on Industrial Electronics, 63(9), 5366-5375. https://doi.org/10.1109/TIE.2016.2561265

This paper presents a dual three phase open end winding induction motor drive. The drive consists of a three phase induction machine with open stator phase windings and dual bridge inverter supplied from a single DC voltage source. To achieve multi-l... Read More about A multi-level converter with a floating bridge for open-ended winding motor drive applications.