中国电气工程学报（英文） ›› 2023, Vol. 9 ›› Issue (2): 1-13.doi: 10.23919/CJEE.2023.000005

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  • 收稿日期:2021-12-27 修回日期:2022-03-15 接受日期:2022-03-23 出版日期:2023-06-25 发布日期:2023-06-28

Design to Improve Thrust Force Performance of Dual-side Primary Permanent-magnet Vernier Linear Motor*

Jinghua Ji1, Xuhui Zhu2, Hongyu Tang3, Liang Xu1, Wenxiang Zhao1,*   

  1. 1. School of Electrical and Information Engineering, Jiangsu University, Zhenjiang 212013, China;
    2. School of Electrical Engineering, Nantong University, Nantong 226019, China;
    3. School of Electrical and Information, Zhenjiang College, Zhenjiang 212028, China
  • Received:2021-12-27 Revised:2022-03-15 Accepted:2022-03-23 Online:2023-06-25 Published:2023-06-28
  • Contact: *E-mail: zwx@ujs.edu.cn
  • About author:Jinghua Ji received B.S., M.S., and Ph.D. degrees in Electrical Engineering from Jiangsu University, Zhenjiang, China, in 2000, 2003, and 2009, respectively. Since 2000, she has been with the School of Electrical and Information Engineering, Jiangsu University, where she is currently a Professor. From 2013 to 2014, she was a Visiting Scholar with the Department of Electronic and Electrical Engineering, University of Sheffield, Sheffield, UK. Her areas of interest include motor design and electromagnetic field computation. She has authored and co-authored over 100 technical papers in these areas.
    Xuhui Zhu received the B.Sc. degree and Ph.D. degree in Electrical Engineering from Jiangsu University, Zhenjiang, China, in 2015 and 2021, respectively. He has been a Lecturer with Nantong University, Nantong, China, since Dec. 2021. He is currently a Postdoctoral Research Fellow with the School Electrical and Electronic Engineering, Nanyang Technological University, Singapore. His research interests include flux-modulation motor design, electromagnetic field computation and motor control.
    Hongyu Tang received the B.Sc. degree in Electrical Engineering from Jiangsu University of Science and Technology, Zhenjiang, China, in 1999, and the M.Sc. degree in Electrical Engineering from Jiangsu University, Zhenjiang, China, in 2005. He has been with Zhenjiang College since 1999, where he is currently a Professor with the School of Electrical and Information. His current research interests include analysis and control of permanent-magnet motor drive systems.
    Liang Xu received the B.Sc. degree in Electrical Engineering and Automation from Soochow University, Suzhou, China, in 2011, the M.Sc. degree in Power Electronics and Power Drives from Jiangsu University, Zhenjiang, China, in 2014, and the Ph.D. degree in Control Science and Engineering from Jiangsu University, Zhenjiang, China, in 2017. Since 2017, he has been with Jiangsu University, where he is currently an Associate Professor with the School of Electrical and Information Engineering. Since 2021, he has been serving as a Postdoctoral Fellow with the Department of Electrical Engineering, The Hong Kong Polytechnic University, under Hong Kong Scholars Program. His areas of interest include electrical machines and drives.
    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 and Information Engineering. From 2008 to 2009, he was a Research Assistant with the Department of Electrical and Electronic Engineering, The University of Hong Kong, Hong Kong, China. From 2013 to 2014, he was a Visiting Professor with the Department of Electronic and Electrical Engineering, University of Sheffield, Sheffield, UK. He has authored and co-authored over 150 papers published in various IEEE Transactions. His current research interests include electric machine design, modeling, fault analysis, and intelligent control.
  • Supported by:
    *National Natural Science Foundation of China under Grant 51977099, and in part by the Natural Science Foundation of Jiangsu Province under Grant BK20191225.

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Abstract: A novel dual-side primary permanent-magnet vernier linear (DS-PPMVL) motors is proposed. The novelty of the proposed motors is the design of asymmetric consequent poles on the mover, which can effectively enforce the flux-modulation effect and improve the thrust force performance. First, the topologies and operation principle are introduced. Subsequently, the structure relationships between the existing and proposed motors are discussed. Then, a unified analytical model is built. Accordingly, the magnetic field generated by the consequent pole is calculated. Meanwhile, the performance improvement mechanism with the asymmetric consequent pole is analyzed. To improve the efficiency of motor optimization, multi-objective optimization method is adopted to obtain the global optimal solution combination of structure parameters. The proposed motors exhibit higher thrust force, higher force density, less PM consumption, and better overload performance than the existing DS-PPMVL motor. Finally, experiments are conducted based on the existing prototype to verify the accuracy of the design and analysis.

Key words: Consequent pole, dual-side motor, flux modulation, linear motor, primary permanent-magnet