Main characteristics and performance parameters are given for the modularized SS(subscript 7E) AC/DC electric locomotive. The functions and characteristics of main systems are also stated.
介绍了模块化SS（下标7E）型交直电力机车的主要特点和性能参数，并阐述了机车各主要系统的功能和特点。
This paper introduces a microprocessor controlled PWM real time controller used in AC-DC-AC electric locomotive. A real-time forming method of multi-mode PWM waveform is described.
介绍了一种用十六位单片机实现的用于控制交-直-交电力机车道变器的PWM实时控制器，论述了PWM波形的实时生成方法。
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