微特电机 ›› 2018, Vol. 46 ›› Issue (8): 31-34.doi: 1004-7018-46-8-31-34

• 设计分析 • 上一篇    下一篇

永磁同步电动机失磁故障电磁参数分析

张志艳1,秦鹏1,徐金涛1,刘华2   

  1. 1. 郑州轻工业学院,郑州 450002
    2. 国网河南省电力公司,郑州 450052
  • 收稿日期:2018-05-14 出版日期:2018-08-28 发布日期:2018-08-28
  • 作者简介:张志艳(1975—),女,博士,副教授,研究方向为电机故障诊断,电力系统自动化。
  • 基金资助:
    国家自然科学基金项目(51507156);郑州轻工业学院博士基金项目(2016BSJJ004)

Electromagnetic Parameters Analysis of PMSM Demagnetization

ZHANG Zhi-yan1, QIN Peng1, XU Jin-tao1, LIU Hua2   

  1. 1. Zhengzhou University of Light Industry,Zhengzhou 450002,China
    2. State Grid Henan Electric Power Company,Zhengzhou 450052,China
  • Received:2018-05-14 Online:2018-08-28 Published:2018-08-28

摘要:

对永磁电机失磁故障进行了分类,基于Ansoft建立了内置式永磁同步电动机有限元仿真模型。分别对永磁同步电动机不失磁和不同程度失磁故障情况下的电磁力和电磁转矩进行了分析,探究了电机电磁性能与失磁故障之间的关系。仿真结果表明,随着永磁电机失磁故障程度的增加,静态磁场中电机的电磁力将随之增大,电磁转矩却逐渐减小,而瞬态磁场中电磁力随着失磁程度增加也随之增大,并且波动也较大,而电磁转矩受影响较小,波动幅度不大。

关键词: 永磁同步电动机, 失磁故障, 电磁力, 电磁转矩

Abstract:

The kinds of demagnetization fault of permanent magnet synchronous motor (PMSM) were classified .The finite element simulation model of the interior permanent magnet synchronous motor was established, the interior permanent magnet synchronous motor finite element simulation model based on Ansoft, the electromagnetic force and electromagnetic torque of PMSM under normal or different degree of demagnetization were analyzed respectively. The relationship between the electromagnetic performance of the PMSM and demagnetization fault was explored. The simulation results show that with the increase of permanent magnetic motor loss of magnetic flux, the electromagnetic force of the motor in the static magnetic field will increase, but the electromagnetic torque will gradually decrease. In the transient magnetic field, with the increase of the degree of demagnetization ,the electromagnetic force increases, and the fluctuation is also great. However, the electromagnetic torque is less affected and the fluctuation is not large.

Key words: permanent magnet synchronous motor (PMSM), demagnetization fault, electromagnetic force, electromagnetic torque

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