励磁系统中全控整流电路异常波形分析

Wave Form Analysis of Abnermal All-controlled Rectifier Circuit in Automatic Excitqtion System

现代同步发电机励磁调节器中大多数采用三相全控整流电路 ,可控硅整流电路输出电压波形直接影响着发电机的励磁效果。对三相全控整流电路正常、桥臂断开、脉冲丢失等情况下的波形进行分析后 。

In excitation adjustor of the modern synchronic genertaer,the three phase all controlled rectifier circuit is adopted,and the excitation effect of generator is directly inforencd by the output voltage form of SCR circuit.This paper analyzed the wave form of three phase all controlled rectifier circuit under normal,bridge opend,and impulse lost conditions and put forward the some measures of monitor and protection.