失磁故障是永磁电机特有的故障类型,本文分析了永磁电机失磁故障产生的原因,归纳了永磁电机电磁场计算方法,研究了国内外失磁故障诊断方法已取得的成果和发展动态,提出了研究永磁电机失磁故障诊断应注意的问题。
Demagnetization fault is a special fault type of a permanent magnet motor. The reason of demag- netization fault in PMM was analyzed, development state of the fault diagnosis method at home and abroad was studied, and put forward the problems of research on the fault diagnosis should pay attention to.