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Rishad Ahmed

Assistant Professor, Faculty of Engineering

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Biography

I am an Assistant Professor in Power Electronics within the Department of Electrical and Electronic Engineering at the University of Nottingham. I investigate the key technologies underpinning the emerging powertrain systems of the future electric vehicles and more-electric aircrafts. My main research focus is in high-frequency and high-power-density power converters and packaging of semiconductor devices. Within these areas, the following are of particular interest:

  • Integrated power conversion for electric vehicle and aerospace applications
  • High power density power electronics for low carbon systems
  • Wide band gap semiconductor devices (SiC and GaN)
  • DCDC converter topologies and resonant converters
  • Inductive power transfer system
  • Advanced thermal management and packaging for high-frequency converters
  • Advanced control of converters
  • Battery modelling and health management
  • HVDC system and converters
  • High speed drives

Prior to joining the University of Nottingham I spent 2.5 years working in Research and Development for Dynex Semiconductor. I was a senior design engineer of automotive power electronics. I led the research and development of on-board charger and DCDC converter products for electric vehicles. I played a leading role in many rewarding projects such as vehicle to grid power transfer capable on-board charger development for future intelligent integration of electric vehicles into the greater power system, develop simulation models for analysing the performance of different full electrical and hybrid powertrain systems including fuel-cell EV powertrain systems, low-inductive SiC MOSFET full-bridge module development, 400V to 12V DCDC converter development targeting 2 kW / litre power density and 400V to 800V DCDC converter development targeting 99% efficiency and 30 kW / litre power density.

I received the B.Sc. degree from the Bangladesh University of Engineering and Technology (BUET), Dhaka, Bangladesh in 2011, and the M.Sc. degree (with Distinction) and the Ph.D. degree from the University of Manchester, Manchester, U.K., in 2013 and 2017, respectively. From Sept. 2013 to Feb. 2014 I also worked as a Research Assistant at Cardiff University in the Emerson Control Techniques Multilevel Drive Research Project.

Teaching Summary

EEEE4118- Advanced Power Electronics

Research Summary

Integrated power conversion for electric vehicle and aerospace applications, high power density power electronics for low carbon systems, wide band gap devices (SiC and GaN) - packaging, modelling,… read more

Selected Publications

Current Research

Integrated power conversion for electric vehicle and aerospace applications, high power density power electronics for low carbon systems, wide band gap devices (SiC and GaN) - packaging, modelling, reliability and applications, DCDC converter topologies, resonant converters, control, battery modelling and health management, HVDC, high speed drives, wireless power transfer, advanced thermal management and packaging for high-frequency converters.

I welcome enquiries from potential Mphil and PhD candidates from Home, EU and international countries who are interested in the above research areas. Candidates interested- please email me your CV directly.

  • SHAHJALAL, MOHAMMAD; AHMED, MD RISHAD; LU, HUA; BAILEY, CHRIS; FORSYTH, ANDREW;, 2020. An analysis of the thermal interaction between components in power converter applications IEEE Transactions on Power Electronics.
  • AHMED, MD RISHAD, LI, YUN, TODD, REBECCA and FORSYTH, ANDREW J, 2019. Practical Comparison of ZVZCS Interleaved Boost Converters with SiC Devices In: 2019 IEEE Applied Power Electronics Conference and Exposition (APEC). 2286-2293
  • AHMED, MR, WEI, X and LI, Y, 2019. Enhanced Models for Current-Mode Controllers of the Phase-Shifted Full Bridge Converter with Current Doubler Rectifier In: 2019 10th International Conference on Power Electronics and ECCE Asia (ICPE 2019-ECCE Asia). 3271-3278
  • AHMED, MD RISHAD and LI, YUN, 2019. A low-cost, high-power-density DC-DC converter for hybrid and electric vehicle applications In: 2019 21st European Conference on Power Electronics and Applications (EPE'19 ECCE Europe). P-1
  • ZHAO, HUI, SHEN, YANFENG, YING, WUCHENG, GHOSH, SAIKAT SUBHRA, AHMED, MD RISHAD and LONG, TENG, 2019. A Single-and Three-Phase Grid Compatible Converter for Electric Vehicle (EV) On-Board Chargers IEEE Transactions on Power Electronics.
  • AHMED, MD RISHAD, 2018. Design and analysis of high performance DC-DC converters with SiC technology
  • AHMED, MD RISHAD, TODD, REBECCA and FORSYTH, ANDREW JOHN, 2017. Soft-switching operation of the dual-interleaved boost converter over all duty ratios IET Power Electronics. 10(11), 1250-1258
  • AHMED, MD RISHAD, TODD, REBECCA and FORSYTH, ANDREW J, 2017. Predicting SiC MOSFET Behaviour Under Hard-Switching, Soft-Switching and False Turn-On Conditions IEEE Transactions on Industrial Electronics.
  • AHMED, MR, TODD, R and FORSYTH, AJ, 2017. Switching performance of a SiC MOSFET body diode and SiC schottky diodes at different temperatures In: Energy Conversion Congress and Exposition (ECCE), 2017 IEEE. 5487-5494
  • AHMED, MR, CALDERON-LOPEZ, G, BRYAN, F, TODD, R and FORSYTH, AJ, 2015. Soft-switching SiC interleaved boost converter In: Applied Power Electronics Conference and Exposition (APEC), 2015 IEEE. 941-947
  • AHMED, MD RISHAD and ROGERS, DANIEL J, 2015. FPGA based gate signal generator for three-level neutral point clamped inverters In: Compatibility and Power Electronics (CPE), 2015 9th International Conference on. 419-424
  • AHMED, MD RISHAD, TODD, R and FORSYTH, AJ, 2015. Analysis of SiC MOSFETs under hard and soft-switching In: Energy Conversion Congress and Exposition (ECCE), 2015 IEEE. 2231-2238
  • AHMED, MD RISHAD, 2013. Design, Construction and Evaluation of a Power-Dense 12 V to 48 V Bidirectional DC-DC converter for Automotive Applications
  • KHAN, MD TANVIR ARAFAT, AHMED, MD RISHAD, AHMED, SINA IBNE and KHAN, SHAHIDUL ISLAM, 2012. Design and performance analysis of water pumping using solar PV In: Developments in Renewable Energy Technology (ICDRET), 2012 2nd International Conference on the. 1-4

Department of Electrical and Electronic Engineering

The University of Nottingham
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telephone: +44 (0) 115 95 14081