An Analytical Method of Calculating Back-EMF in Dual Consequent Hybrid Excitation Synchronous Machine

中国电气工程学报（英文） ›› 2018, Vol. 4 ›› Issue (1): 52-59.

出版日期:2018-03-25 发布日期:2019-10-31

An Analytical Method of Calculating Back-EMF in Dual Consequent Hybrid Excitation Synchronous Machine

Jie Wu^*, Jing Yin

School of Electrical and Information Engineering, Zhengzhou University of Light Industry, Zhengzhou 450002, China

Online:2018-03-25 Published:2019-10-31
Contact: *E-mail:wujie@zzuli.edu.cn.
About author:Jie Wu received the M.Eng. degree from Hubei University of Technology, Wuhan, China, in 2005, and the Ph.D. degree from VSB - Technical University of Ostrava, Czech Republic, in 2012. He is an Assistant Professor in the Department of Electrical Engineering, Zhengzhou University of Light Industry, Zhengzhou, China. Concurrently, he also is a Visiting Professor at University of Kentucky, Lexington, KY, USA. Prior to that, from 2005 to 2013, he was an Assistant Professor in the Department of Electrical Engineering, Hubei University of Technology, Wuhan, China. His current research interests include electric machines, power electronic drives, and renewable energy generation. He has served as chair of IEEE 2017 Anniversary Edition of IEMDC - International Conference on Electrical Machines and Drives. Jing Yin received the B.Sc. degree from Southwest University, Chongqing, China, in 2003, and M.Sc. degree from Beijing Forestry University, Beijing, China, in 2006. She is a research scholar in School of Electrical and Information Engineering, Zhengzhou University of Light Industry, Zhengzhou, China. Her research interests include optimization of PM machines, artificial intelligence, system modeling and simulation.
Supported by:
Supported in part by the Natural Science Foundation of Henan Province under Grant 162300410319, the Education Department of Henan Province under Grant 16A470026, Zhengzhou University of Light Industry under Grant 2014BSJJ040, and the office of Science and Technology in Henan Province under Grant 172102310254.

摘要/Abstract

Abstract: In order to solve the problem of asymmetric bidirectional flux control capability in hybrid excitation machine, a novel structure called dual consequent hybrid excitation synchronous (DCHES) machine is presented in this paper. Generally, the analysis of back-EMF for the machine with complex electromagnetic structure such as DCHES machine should utilize 3-D finite element analysis (FEA), which will require huge resources and computing time. In order to avoid using 3-D FEA to analyze the back-EMF of complex structure, an analytical method of calculating back-EMF is presented in this paper. The electromagnetic field in 3-D space can be simplified as a 2-D field by dividing the 3-D field into several simple zones, the resultant effect equals to the summation of every single 2-D field's effect. According to electromagnetic theory, the analytical formula of back-EMF is obtained on the basis of Fourier series. The influence of main parameters on back-EMF waveform under sine and trapezoidal flux distribution is discussed respectively. The theoretical result shows that the trapezoidal air-gap flux distribution would generate a sine back-EMF. Finally, the presented analytical method is verified and evaluated with experimental results.

Key words: Analytical method, back-EMF, DCHES machine, hybrid excitation machine

. [J]. 中国电气工程学报（英文）, 2018, 4(1): 52-59.

Jie Wu, Jing Yin. An Analytical Method of Calculating Back-EMF in Dual Consequent Hybrid Excitation Synchronous Machine[J]. Chinese Journal of Electrical Engineering, 2018, 4(1): 52-59.

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An Analytical Method of Calculating Back-EMF in Dual Consequent Hybrid Excitation Synchronous Machine

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