Through reason and harm analysis which produces to the rail transit power supply system higher harmonic, discusses emphatically to the power supply system harmonic suppression measure.
通过对轨道交通供电系统高次谐波产生原因及危害的分析，着重探讨对供电系统谐波抑制的措施。
On the basis of analysis of operation performance of AC motor, the harm of harmonic wave of electric net work to electric motor is summarized in the paper.
在分析交流电机工作特性的基础上，阐述了电网谐波对电机的危害。
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