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General Enquiry

Fax: +(852)-3442-0688
Address: G5703, 5/F, Yeung Kin Man Academic Building (YEUNG),
City University of Hong Kong,
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Flux Modulation Machines
Speaker Name
Prof. Ronghai QU
Speaker Detail

Huazhong University of Science & Technology, Wuhan, China

G5-310, 5/F, Yeung Kin Man Academic Building, City University of Hong Kong, Kowloon Tong, Kowloon, Hong Kong

Organizer: School of Energy and Environment
City University of Hong Kong


Different from regular PM machines, flux modulation machines are with different stator and rotor pole number, and produce steady torque based on the so called flux modulation effect. The special operation principle makes flux modulation machines high-torque density and low-pulsation torque, and more design freedoms lead to many novel machine topologies for different applications. This talk will summarize current development of Flux Modulation Machines with focus on the principle, features and topologies. Vernier machine, a member of flux modulation machine family, will be introduced in detail.  Structure, operation, features, and parasitic effect will be discussed, and several advanced vernier topologies and their prototypes will be demonstrated.

About the Speaker

Ronghai Qu received his B.E. and M.S. degrees from Tsinghua University, Beijing, China, and the Ph.D. degree from University of Wisconsin-Madison, all in electrical engineering. He had been with the General Electric (GE) Global Research Center (GRC), Niskayuna, NY as a Senior Electrical Engineer from 2003 to 2010. He was the recipient of 11 GE GRC awards including EPST Technical Achievement Award and Management Award. In 2010 he joined Huazhong University of Science & Technology, Wuhan, China as a titled professor. He is currently the member of academic degrees committee, director of State and Province Joint Engineering Research Center of Novel Electrical Machines, director of Center for Advanced Electrical Machines and Drives (CAEMD), and deputy director of State Key Laboratory of Advanced Electromagnetic Engineering and Technology. He is an IEEE fellow and the chair of IEEE Industry Application Society (IAS) Wuhan Chapter. His research interests include Design, Drive and Control of Electrical Machines. He has published over 250 technical papers including 5 IEEE award papers and holds over 100 patents.