|Table of Contents|

[1] Li Yibo, Huang Jiacai, Zhu Zhiying,. Analysis of pole-slot combination of novel flux-adjustablepermanent magnet adjustable speed drive with fixed air-gap [J]. Journal of Southeast University (English Edition), 2023, (1): 74-80. [doi:10.3969/j.issn.1003-7985.2023.01.009]

Analysis of pole-slot combination of novel flux-adjustablepermanent magnet adjustable speed drive with fixed air-gap()

Journal of Southeast University (English Edition)[ISSN:1003-7985/CN:32-1325/N]

Research Field:
Electrical Engineering
Publishing date:


Analysis of pole-slot combination of novel flux-adjustablepermanent magnet adjustable speed drive with fixed air-gap
Li Yibo1 Huang Jiacai1 Zhu Zhiying2
1Industrial Center/School of Innovation and Entrepreneurship, Nanjing Institute of Technology, Nanjing 211167, China
2School of Electric Power Engineering, Nanjing Institute of Technology, Nanjing 211167, China
permanent magnet adjustable speed drive pole-slot combination analytical model finite element method squirrel cage rotor torque characteristics
To further improve the output torque of a permanent magnet adjustable speed drive(PMASD)and simplify the mechanical operation mechanism required in the speed regulation process, a flux-adjustable PMASD with a fixed air-gap is proposed by combining the slotted conductor rotor(CR)structure with the mechanical flux adjustment method. First, the structural characteristics and operating principle of the proposed PMASD are described. Then, the key factors affecting its basic electromagnetic characteristics are analyzed based on a theoretical model and the finite element method. The combination between the number of permanent magnet poles and the number of CR slots is mainly studied. Finally, the optimal pole-slot matching scheme was obtained with the goal of the maximum output torque and minimum torque ripple, and the principle prototype was manufactured to obtain its speed regulation characteristics, power, loss, and efficiency. The analysis results are verified comprehensively. The results show that the torque ripple is large when the slot number per pole pair is even, whereas it is smaller when the slot number per pole pair is odd. Moreover, the torque ripple decreases with the increase in the slot number per pole pair.


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Biography: Li Yibo(1989—), male, doctor, lecturer, ybli@njit.edu.cn.
Foundation items: The National Natural Science Foundation of China(No.52107048), Jiangsu Provincial Natural Science Foundation of Higher Education(No.21KJB470021), the Scientific Research Foundation for the High-level Personnel of Nanjing Institute of Technology(No. YKJ2019107).
Citation: Li Yibo, Huang Jiacai, Zhu Zhiying. Analysis of pole-slot combination of novel flux-adjustable permanent magnet adjustable speed drive with fixed air-gap[J].Journal of Southeast University(English Edition), 2023, 39(1):74-80.DOI:10.3969/j.issn.1003-7985.2023.01.009.
Last Update: 2023-03-20