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针对串电阻调速电机车存在的弊端,提出进行斩波调速改造。本文阐述了IGBT的调速原理,着重分析了斩波调速改造后电机车产生的经济效益和社会效益。
In view of the shortcoming of the string resistance speed regulating electric locomotive, it is proposed to carry on chopper speed governing. This paper describes the principle of IGBT speed regulation, focusing on analysis of the chopper speed motor car after the transformation of the economic and social benefits.