Analysis and suppression of radial electromagnetic force of external rotor permanent magnet synchronous motor

被引：0
|
作者：
Bian X. [1 ]
Ji Y. [1 ]
Liang Y.-P. [1 ]
机构：
[1] School of Electrical and Electronic Engineering, Harbin University of Science and Technology, Harbin
来源：
Dianji yu Kongzhi Xuebao/Electric Machines and Control | 2022年 / 26卷 / 10期
关键词：
addendum eccentric; electromagnetic noise; external rotor permanent magnet synchronous motor; radial electro-magnetic force; suppression method; theoretical analysis;
D O I：
10.15938/j.emc.2022.10.009
中图分类号：
学科分类号：
摘要：
For the problem of radial electromagnetic force harmonics during the operation of external rotor permanent magnet synchronous motor, a method to suppress the electromagnetic noise is proposed. The prototype used an external rotor permanent magnet synchronous motor with rated power of 3 kW. Firstly, the source and order of the radial electromagnetic force of the motor were theoretically analyzed and the main order of the electromagnetic force wave corresponding to this motor were deduced. Secondly, in order to suppress the radial electromagnetic force of the motor, a method of tooth tip eccentricity was proposed. Secondly, the two-dimensional transient time-step finite element method was used to simulate and analyze the air-gap magnetic density, radial electromagnetic force and its harmonic content of the motor with and without the eccentric structure of the tooth top. The changes of the main electromagnetic force wave order and harmonic content were compared with the previous theoretical analysis. Finally, a prototype experiment platform was established and the simulation results were verified by the prototype experiment. The results show that the interaction of permanent magnet field and armature winding field produce the radial electromagnetic force of external rotor permanent magnet synchronous motor. The eccentric structure of tooth top can effectively reduce the airgap magnetic density and the harmonics of radial elec- tromagnetic force. © 2022 Editorial Department of Electric Machines and Control. All rights reserved.
引用
收藏
页码：74 / 80
页数：6
相关论文
共 13 条
  • [1] ZHENG Jiang, DAI Ying, SHI Jian, Electromagnetic noise characteristics of permanent magnet synchronous motor applied in electric vehicle [J], Transactions of China Electrotechnical Society, 31, SI, (2016)
  • [2] WANG Xiaoyuan, HE Xiaoyu, GAO Peng, Research on electromagnetic vibration and noise reduction method of V type magnet rotor permanent magnet motor electric vehicles[J], Proceedings of the CSEE, 39, 16, (2019)
  • [3] QIAN Zhe, TANG Guanghua, WANG Qunjing, Et al., Vibration and noise reduction of vehicle permanent magnet synchronous motor by rotor structure optimization, Electric Machines and Control, 25, 10, (2021)
  • [4] LIU Wanqiu, DAI Ying, YE Fei, Et al., Optimization of vibration and noise of vehicle permanent magnet synchronous motor based on auxiliary slot of rotor, Electric Machines & Control Application, 47, 6, (2020)
  • [5] FAN Qingfeng, WANG Guangchen, Effect of rotor stepped skewing in different ways on vibration and noise of permanent magnet synchronous motor[J], Electric Machines & Control Application, 47, 9, (2020)
  • [6] ZUO Shuguang, ZHANG Yaodan, LIU Xiaoxuan, Et al., Analysis on the vibration and noise of permanent magnet synchronous motor with rotor eccentricity[J], Mechatronics, 23, 6, (2017)
  • [7] YANG Haodong, CHEN Yangsheng, DENG Zhiqi, Electromagnetic vibration of PM synchronous motors with different combinations of slot and pole number, Transactions of China Electro-technical Society, 26, 9, (2011)
  • [8] KROTSCH J, PIEPENBREIER B., Radial forces in external rotor permanent magnet synchronous motors with non-overlapping windings [J], IEEE Transactions on Industrial Electronics, 59, 5, (2012)
  • [9] KROTSCH J, PIEPENBREIER B., Harmonic diversity and determining factors of radial forces in external rotor permanent magnet synchronous motors with concentrated windings, The XIX International Conference on Electrical Machines, pp. 978-985, (2010)
  • [10] DONG Qingchao, LIU Xintian, QI Hongzhong, Et al., Analysis and evaluation of electromagnetic vibration and noise in perma-nent magnet synchronous motor with rotor step skewing[J], Science China (Technological Science), 62, 5, (2019)
12