This paper describes in detail the research process of chopper control system for Beijing testing 1200kw electrical cars.
本文详尽地叙述了北京地铁1200千瓦斩波调速系统的研制经过。
The circuit adopts PWM chopper control mode, power factor on the system side is close to 1.
通过采用PWM斩波控制方式，使系统侧功率因数接近于1。
Described in this article is the working principle of chopper speed control system for wound rotor motor.
介绍了一种转子绕线式电动机斩波调速系统的工作原理。
Described in this article is the working principle of chopper speed control system for wound rotor motor.
介绍了一种转子绕线式电动机斩波调速系统的工作原理。
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