交流永磁同步无齿曳引机绕组的绝缘劣化及其预防

Insulation Deterioration and Its Prevention of the Motor Winding of AC PM Gearless Traction Machine

分析了在变频电源供电的情况下．电梯用交流永磁同步无齿曳引机绝缘损坏产生的机理；对绕组绝缘的击穿现象作了介绍；指出了变频器对曳引机绕组绝缘的一些影响；针对预防永磁同步无齿曳引机绝缘失效提出了解决措施。

In the case of variable frequency power supply, the causes of insulation damage of AC permanent magnet synchronous gearless traction machine is analyzed, the breakdown phenomena of winding insulation and some influences of converter to traction machine winding insulation are introduced. To prevent insulation failure of permanent magnetic synchronous gearless traction machine, the solving measure are put forward.