Modeling and Analysis of Spoke-Type Permanent Magnet Vernier Machine Based on Equivalent Magnetic Network Method

Chinese Journal of Electrical Engineering ›› 2018, Vol. 4 ›› Issue (2): 96-103.

Modeling and Analysis of Spoke-Type Permanent Magnet Vernier Machine Based on Equivalent Magnetic Network Method

Shan Jiang^1,2, Guohai Liu^1,2, Wenxiang Zhao^1,2,*, Liang Xu^1,2, Qian Chen^1,2

1. School of Electrical and Information Engineering, Jiangsu University, Zhenjiang 212013, China;
2. Jiangsu Key Laboratory of Drive and Intelligent Control for Electric Vehicle, Zhenjiang 212013, China

Online:2018-06-25 Published:2019-10-31
Contact: *, Email: zwx@ujs.edu.cn.
About author:Shan Jiang received the B.Sc. degree in electrical engineering from Jiangsu University, Zhenjiang, China, in 2015. He is currently working toward the M.Sc. degree. His current research interests include computation of electromagnetic fields for permanent-magnet machine, and electric machine design. Guohai Liu (M’07-SM’15) received the B.Sc. from Jiangsu University, China, in 1985, and the M.Sc and Ph.D. degrees from Southeast University, China, in 1988 and 2002, respectively, in electrical engineering and control engineering. Since 1988, he has been with Jiangsu University, where he is currently a Professor, the Dean of the School of Electrical Information Engineering. His teaching and research interests include electrical machines, motor drives for electric vehicles and intelligent control. He has authored or co-authored over 150 technical papers and 4 textbooks, and holds 15 patents in these areas. Wenxiang Zhao (M’08-SM’14) received the B.Sc. and M.Sc. degrees in electrical engineering from Jiangsu University, Zhenjiang, China, in 1999 and 2003, respectively, and the Ph.D. degree in electrical engineering from Southeast University, Nanjing, China, in 2010. He has been with Jiangsu University since 2003, where he is currently a Professor with the School of Electrical Information Engineering. From 2008 to 2009, he was a Research Assistant with the Department of Electrical and Electronic Engineering, University of Hong Kong, Hong Kong. From 2013 to 2014, he was a Visiting Professor with the Department of Electronic and Electrical Engineering, University of Sheffield, Sheffield, U.K. His current research interests include electric machine design, modeling, fault analysis, and intelligent control. He has authored and co-authored over 130 technical papers in these areas. Liang Xu (S’15) received the B.Sc. degree in electrical engineering and automation from Soochow University, Suzhou, China, in 2011, and the M.Sc and Ph.D. degrees from Jiangsu University, Zhenjiang, China, in 2014 and 2017, respectively. He has been with Jiangsu University since 2017, where he is currently a Lecturer in the School of Electrical Information Engineering. His areas of interest include electrical machines and drives. Qian Chen (M’16) received the B.Sc. and Ph.D. degrees from Jiangsu University, Zhenjiang, China, in 2009 and 2015, respectively, in electrical engineering and control engineering. He has been with Jiangsu University since 2015, where he is currently an Associate Professor in the School of Electrical Information Engineering. His current research interests include electric machine design, modeling, fault analysis, and intelligent control.
Supported by:
Supported by National Natural Science Foundation of China under Grant 51577084, Key Project of Natural Science Foundation of Jiangsu Higher Education Institutions under Grant 15KJA470002, and the Priority Academic Program Development of Jiangsu Higher Education Institutions.

Abstract

Abstract: In this paper, a new equivalent magnetic network(EMN) model is established for a spoke-type permanent magnet(PM) vernier(PMV) machine. Two different modeling methods are proposed for different parts of the PMV machine, considering that their magnetic field distributions are quite different. Hierarchical modeling method is proposed for the modeling of the rotor as the magnetic intensity of the rotor iron core presents gradient distribution along the radial direction. Mesh based reluctance network method is used for the modeling of flux modulation poles with irregular and unstable magnetic field distributions. Moreover, accurate PM leakage permeance calculation formulae are deduced to improve the simulation precision. The electromagnetic parameters, such as flux linkage, back electromagnetic force, electromagnetic torque and iron loss are predicted by the proposed EMN model. Finally, finite element analysis(FEA) and experimental results are given to verify the effectiveness of the proposed methods.

Key words: Equivalent magnetic network(EMN), permanent magnet vernier(PMV) machine, hierarchical modeling method, mesh based reluctance network, finite element analysis(FEA)

Shan Jiang, Guohai Liu, Wenxiang Zhao, Liang Xu, Qian Chen. Modeling and Analysis of Spoke-Type Permanent Magnet Vernier Machine Based on Equivalent Magnetic Network Method[J]. Chinese Journal of Electrical Engineering, 2018, 4(2): 96-103.

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