英国教授讲座:《多相电压源逆变器直流排电容设计考量》

英国教授讲座:《多相电压源逆变器直流排电容设计考量》

讲座时间:2019年6月20日(周四), 13:00—15:00

讲座地点:泰山科研楼310

讲座题目:Multiphase Voltage Source Inverter DC-link Capacitor Considerations

讲座摘要:

The investigation methodology and procedure for arbitrary phase number two level voltage source inverter (VSI) DC-link capacitors are developed including VSI DC-link capacitor introduction, multiphase VSI modelling and investigation method and capacitor requirements etc., based on which the DC-link capacitor requirements are analytically characterized for different phase number VSIs. Under the equitable operating conditions, the increase of the phase number inherently alleviates the DC-link capacitor requirements. Other factors, e.g. switching strategies, carrier waveformsand interleaving techniques, also determine the DC-link capacitor requirements. For the higher phase number VSIs, their increased configuration flexibilities make it possible to further decrease the DC-link capacitor requirements. The study is partially validated experimentally through the 3- and 9-phase VSIs driving brushless permanent magnet (BLPM) machines. Finally, the DC-link capacitor design procedure is proposed for two level multiphase VSIs.

 

主讲人简介:

Nigel Schofield received the degrees of B.Eng. (Hons.) in Electrical Power Engineering, and Ph.D. for research on the field-weakening capability of brushless permanent-magnet traction machines from the University of Sheffield, UK.  He held academic posts at the Universities of Sheffield and Manchester, UK.  He has also been a Design Engineer in industry, UK.  From 2013 to 2017 he was Full Professor with Tenure in the ECE Dept. at McMaster University, Ontario, Canada.  In May 2017 he started in a new post as Professor in Electrical Engineering at the University of Huddersfield, UK.  His research interests include electro-magnetic power-trains for all- and hybrid-electric vehicles.

Prof. Schofield is a member of the IET and IEEE and a Chartered Engineer.

Professor Schofield will be joined by his PhD research student Dr Zipan Nie (聂子攀博士) who is currently a Postdoctoral Research Associate in the Department of Electrical Engineering, Tsinghua University, High Voltage Research Institute, Tsinghua University, Beijing, China.

Contact details:

Nigel Schofield

University of Huddersfield, UK

Email: n.schofield@hud.ac.uk

 

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