微特电机 ›› 2018, Vol. 46 ›› Issue (1): 1-4.

• 理论研究 •    下一篇

基于能量法的单相无刷直流电动机齿槽转矩研究

袁子聪1,彭颖卿2,王孟1,尹华杰1   

  1. (1) 华南理工大学,广州 510640
    (2) 广东美的环境电器制造有限公司,中山 528425
  • 收稿日期:2017-05-17 出版日期:2018-01-28 发布日期:2018-01-28
  • 作者简介:袁子聪(1993-),男,硕士研究生,研究方向为永磁电机的设计与控制。
  • 基金资助:
    国家自然科学基金项目(51577074)

Cogging Torque Analysis Based on Energy Method for Single-Phase Brushless DC Motor

Zi-cong YUAN1,Ying-qing PENG2,Meng WANG1,Hua-jie YIN1   

  1. (1) South China University of Technology,Guangzhou 510640,China
    (2) GD Midea Environment Appliances MFG.Co.,Ltd.,Zhongshan 528425,China
  • Received:2017-05-17 Online:2018-01-28 Published:2018-01-28

摘要:

针对极槽数相等且采用渐变气隙的单相无刷直流电动机,基于能量法建立了齿槽转矩的解析模型,并用有限元法验证了该模型的正确性。基于该模型分析了单相无刷直流电动机齿槽转矩的削弱方法及渐变气隙长度最大值对齿槽转矩过零点位置和峰值的影响,提出渐变气隙长度最大值选取应小于或等于某个临界值。

关键词: 能量法, 渐变气隙, 单相无刷直流电动机, 齿槽转矩

Abstract:

A cogging torque analytical model based on energy method was proposed for the single-phase brushless DC motor (SPBLDCM) with the same number of poles and slots and with tapered airgap, and its validity was verified by the FEM results. Based on the model, some methods were proposed to reduce the cogging torque, the influence of the maximum tapered airgap length on the zero-crossing position and cogging torque peak value were analyzed, and the optimal value for the the maximum tapered airgap length was found to be equal to or less than a critical value.

Key words: energy method, tapered airgap, single-phase brushless DC motor (SPBLDCM), cogging torque

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