辅助槽对内置式永磁同步电机齿槽转矩的影响
作者:
中图分类号:

TM351

基金项目:

国家重点研发计划资助项目(2018YFB1201602-06);兰州交通大学-天津大学联合创新基金(2020056)。


Effects of auxiliary slots on the cogging torque of an interior permanent-magnet synchronous motor
Author:
  • 摘要
  • | |
  • 访问统计
  • |
  • 参考文献 [24]
  • |
  • 相似文献
  • | | |
  • 文章评论
    摘要:

    针对齿槽转矩带来的永磁电机转矩波动导致振动和噪声的问题,采用开辅助槽的方法抑制齿槽转矩。分析抑制齿槽转矩的原理,通过改变辅助槽的个数、槽深、槽宽、开槽面积和开槽形状,运用Ansoft Maxwell软件对永磁电机建模,利用有限元分析辅助槽对永磁同步电机齿槽转矩的影响。以一台4极36槽电机为例分析的结果表明:当开2个辅助槽,槽深0.7 mm、槽宽1.2 mm、开槽面积为0.84 mm2、槽型为矩形槽时,齿槽转矩的削弱效果最明显,比未开槽时的齿槽转矩减小了75.2%;且开辅助槽前后反电动势变化不大,气隙磁密基波幅值降低,5、7次谐波削弱程度显著,波形畸变率下降至17.78%,电机性能得到改善。

    Abstract:

    Aiming at finding the solution to the problem of vibration and noise resulting from the torque fluctuation of a permanent magnet motor caused by cogging torque, auxiliary slots were used to reduce the cogging torque. The principle of suppressing cogging torque was analyzed and by changing the number, depth, width, slot area and slot shape of the auxiliary slot, Ansoft Maxwell software was used to model the permanent magnet motor, and the finite element method was used to analyze the effect of the auxiliary slot on cogging torque of the permanent magnet synchronous motor. Taking a 4-pole 36-slot motor as an example, the analysis results show that with two auxiliary rectangular slots whose depth, width and area are 0.7 mm, 1.2 mm, and 0.84 mm2 respectively, the weakening effect is the most obvious, with the cogging torque 75.2% lower than that without an auxiliary slot. In addition, the back electromotive force changes little before and after the application of the auxiliary slot, and the amplitude of the fundamental wave of the air gap magnetic density decreases; the degree of 5th and 7th harmonic weakening is significant; the waveform distortion rate drops to 17.78%, and the motor performance is improved.

    参考文献
    [1] 唐任远.现代永磁电机理论与设计[M]. 北京:机械工业出版社, 1997:161-215. Tang R Y. Modern permanent magnet machines-theory and design[M]. Beijing:China Machine Press, 1997:161-215. (in Chinese)
    [2] Lin D, Ho S L, Fu W N. Analytical prediction of cogging torque in surface-mounted permanent-magnet motors[J]. IEEE Transactions on Magnetics, 2009, 45(9):3296-3302.
    [3] Chen N N, Ho S L, Fu W N. Optimization of permanent magnet surface shapes of electric motors for minimization of cogging torque using FEM[J]. IEEE Transactions on Magnetics, 2010, 46(6):2478-2481.
    [4] 鲍晓华, 吴长江, 方金龙. 轴向永磁体组合削弱表贴式永磁同步电机齿槽转矩的方法[J]. 电工技术学报, 2018, 33(18):4231-4238. Bao X H, Wu C J, Fang J L. Cogging torque reduction in surface-mounted permanent magnet synchronous motor by combining different permanent magnets in axial direction[J]. Transactions of China Electrotechnical Society, 2018, 33(18):4231-4238.(in Chinese)
    [5] 郭有权, 司纪凯, 司高杰, 等. 磁极偏移法抑制表面-内置式永磁转子同步电机齿槽转矩分析[J]. 煤炭学报, 2017, 42(8):2181-2189. Guo Y Q, Si J K, Si G J, et al. Cogging torque suppression of surface-mounted and interior hybrid PMSM by magnet shifting method[J]. Journal of China Coal Society, 2017, 42(8):2181-2189.(in Chinese)
    [6] Ge X, Zhu Z Q, Kemp G, et al. Optimal step-skew methods for cogging torque reduction accounting for three-dimensional effect of interior permanent magnet machines[J]. IEEE Transactions on Energy Conversion, 2017, 32(1):222-232.
    [7] 李天元, 夏加宽, 龙宇航, 等. 不同转子辅助槽对内置式永磁电机齿槽转矩的影响[J]. 微特电机, 2019, 47(5):17-20, 28. Li T Y, Xia J K, Long Y H, et al. Influence of different rotor's auxiliary slots on cogging torque of IPM motor[J]. Small & Special Electrical Machines, 2019, 47(5):17-20, 28.(in Chinese)
    [8] Kang G H, Son Y D, Kim G T, et al. A novel cogging torque reduction method for interior-type permanent-magnet motor[J]. IEEE Transactions on Industry Applications, 2009, 45(1):161-167.
    [9] 杨玉波, 王秀和, 朱常青. 电枢槽口宽度对内置式永磁同步电机齿槽转矩的影响[J]. 电机与控制学报, 2011, 15(7):21-25. Yang Y B, Wang X H, Zhu C Q. Effect of slot opening on the cogging torque of permanent magnet synchronous motor[J]. Electric Machines and Control, 2011, 15(7):21-25.(in Chinese)
    [10] 周建, 钱喆, 王群京, 等. V型内置式永磁同步电动机齿槽转矩削弱方法研究[J]. 微特电机, 2019, 47(7):16-19. Zhou J, Qian Z, Wang Q J, et al. Research on cogging torque reduction method of V-type interior permanent magnet synchronous motor[J]. Small & Special Electrical Machines, 2019, 47(7):16-19.(in Chinese)
    [11] 唐旭, 王秀和, 田蒙蒙, 等. 基于改变定子齿槽参数的异步起动永磁同步电动机齿槽转矩削弱措施研究[J]. 电工技术学报, 2016, 31(23):1-8. Tang X, Wang X H, Tian M M, et al. Study of reduction methods of cogging torque in line-start permanent magnet synchronous motor by changing the parameters of stator teeth and slots[J]. Transactions of China Electrotechnical Society, 2016, 31(23):1-8.(in Chinese)
    [12] 唐旭, 王秀和, 孙树敏, 等. 异步起动永磁同步电动机齿槽转矩的解析分析和削弱措施研究[J]. 中国电机工程学报, 2016, 36(5):1395-1403. Tang X, Wang X H, Sun S M, et al. Analytical analysis and study of reduction methods of cogging torque in line-start permanent magnet synchronous motors[J]. Proceedings of the CSEE, 2016, 36(5):1395-1403.(in Chinese)
    [13] Ishikawa T, Slemon G R. A method of reducing ripple torque in permanent magnet motors without skewing[J]. IEEE Transactions on Magnetics, 1993, 29(2):2028-2031.
    [14] Ren W, Xu Q, Li Q, et al. Reduction of cogging torque and torque ripple in interior PM machines with asymmetrical V-type rotor design[J]. IEEE Transactions on Magnetics, 2016, 52(7):1-5.
    [15] 杨金歌, 邓兆祥, 周忆, 等. 车用永磁轮毂电机解析建模与齿槽转矩削弱[J]. 西安交通大学学报, 2018, 52(1):84-91, 114. Yang J G, Deng Z X, Zhou Y, et al. Analytical modeling and cogging torque weakening of permanent magnet in-wheel motor for electric vehicles[J]. Journal of Xi'an Jiaotong University, 2018, 52(1):84-91, 114.(in Chinese)
    [16] Bianchi N, Bolognani S. Design techniques for reducing the cogging torque in surface-mounted PM motors[J]. IEEE Transactions on Industry Applications, 2002, 38(5):1259-1265.
    [17] 王轶楠,唐冲,颜钢锋.定子齿冠开辅助凹槽抑制永磁电机齿槽转矩[J].微电机,2014,47(10):20-23. Wang Y N, Tang C, Yan G F. Reducing cogging torque of permanent magnet motors by notching auxiliary slot in top of stator teeth[J]. Micromotor, 2014, 47(10):20-23.(in Chinese)
    [18] 夏加宽, 于冰. 定子齿开辅助槽抑制永磁电动机定位力矩[J]. 微特电机, 2010, 38(1):13-14, 23. Xia J K, Yu B. Study on reducing cogging torque of permanent magent motors by stator teeth notching[J]. Small & Special Electrical Machines, 2010, 38(1):13-14, 23.(in Chinese)
    [19] 张登明, 周阳, 曾凡铨. 削弱齿槽转矩的定子结构设计[J]. 飞控与探测, 2018(3):54-58. Zhang D M, Zhou Y, Zeng F Q. Stator structure design to weaken the cogging torque[J]. Flight Control & Detection, 2018(3):54-58.(in Chinese)
    [20] 何庆领, 王群京. 永磁同步发电机齿槽转矩削弱方法研究[J]. 电子测量与仪器学报, 2013, 27(5):461-466. He Q L, Wang Q J. Research on weakening method for cogging torque in permanent magnet synchronous generator[J]. Journal of Electronic Measurement and Instrument, 2013, 27(5):461-466.(in Chinese)
    [21] 王秀和.永磁电机[M]. 2版.北京:中国电力出版社,2011. Wang X H. Permanent magnet motor[M]. Beijing:China Electric Power Press,2011.(in Chinese)
    [22] 刘细平, 刘章麒, 李亚, 等. 电动汽车用双层永磁体IPMSM优化分析[J]. 电机与控制学报, 2017, 21(10):30-39. Liu X P, Liu Z Q, Li Y, et al. Optimization and analysis of IPMSM with double-layer permanent magnet used in electric vehicle[J]. Electric Machines and Control, 2017, 21(10):30-39.(in Chinese)
    [23] 吴苏敏, 董立威, 刘洋, 等. 基于气隙磁密波形优化的永磁同步电机结构[J]. 电机与控制应用, 2014, 41(3):12-16. Wu S M, Dong L W, Liu Y, et al. Structure of permanent magnet synchronous motor based on optimization of air-gap flux density waveform[J]. Electric Machines and Control Application, 2014, 41(3):12-16.(in Chinese)
    [24] 张炳义, 贾宇琪, 李凯, 等. 一种表贴式永磁电机磁极结构优化研究[J]. 电机与控制学报, 2014, 18(5):43-48. Zhang B Y, Jia Y Q, Li K, et al. Study on magnetic pole structure of surface mounted PMSM[J]. Electric Machines and Control, 2014, 18(5):43-48.(in Chinese)
    相似文献
    引证文献
引用本文

陶彩霞,付名禄,高锋阳,万应利,刘汗青.辅助槽对内置式永磁同步电机齿槽转矩的影响[J].重庆大学学报,2021,44(4):64-76.

复制
分享
文章指标
  • 点击次数:828
  • 下载次数: 1558
  • HTML阅读次数: 2269
  • 引用次数: 0
历史
  • 收稿日期:2020-04-08
  • 在线发布日期: 2021-04-20
文章二维码