摘要
本文介绍了8K型电力机车辅助变流器的特点、主电路元件参数及控制。在文中较为详细地叙述了GTO逆变器的调频调压方式和该系统有特点的脉冲分配电路以及逆变器的短路保护和过流保护原理。最后文章还介绍了该变流器在运行过程中曾暴露出的问题和改进措施。
It is introduced here the characteristics, the parameters of the power circuit devices and the control method of the auxiliary converter of 8K electric locomotive. Detailed description is presented regarding the VVVF mode of GTO inverter, its characteristic pulse distribution circuit as well as the principles of short circuit and over current protection of the inverter. The problems occurred in the converter operation and their corresponding improving methods are listed lastly.
出处
《机车电传动》
北大核心
1989年第6期6-14,共9页
Electric Drive for Locomotives
关键词
电力机车
变流器
8K型
phase converter
inverter
auxiliary power supply
pulse width modulation
frequency control of motor speed
gate turn-off thyristor application
trigger circuit
driving circuit
power circuit
control
over-current protection
circuit diagram
