摘要
本文介绍和论证了一种抑制大容量晶闸管异步电动机变频调速系统中谐波电流的方法,分析了两套定子三相绕组异步电动机的气隙磁场。分析结果表明,这种方法可以消除5次、7次谐波电流产生的脉动转矩以及基波电流产生的空间5次、7次谐波磁场对电机运行的影响。
This paper introduced and verified a method of weakening harmonic current in high power thyristor asynchronous motor current-source inverter variable speed system. It analyzed the air gap magnetic field of asynchronous motor which has two sets of stator three phase winding with phase difference 30o. The results showed that pulse torque and harmonic magnetic field produced by harmonic current can be weakened greatly with the method.
出处
《上海第二工业大学学报》
2002年第1期33-39,共7页
Journal of Shanghai Polytechnic University
