他励直流发电机励磁电源系统设计  

Excitation Power Supply System Design for Separately Excited DC Generator

作　　者：刘勇[1] 

机构地区：[1]中车长春轨道客车股份有限公司,吉林长春130062

出　　处：《机械与电子》2016年第11期51-54,共4页Machinery & Electronics

摘　　要：为实现电机出厂测试,现将他励直流电动机改为发电运行,以达到对电机施加可控负载的目的。本设计通过采用三相桥式全控整流技术,对可控硅实现移相触发,通过调节移相角的大小来调节输出的励磁电流。经现场实地测试,本系统运行稳定,调节范围宽,纹波系数较小,达到了设计要求。In order to pass the factory acceptance testing,the separately excited DC motor was changed into a generator,and thus the controlled load could be applied.Three-phase full-bridge controlled rectifier was applied,in this design,to realize the SCR phase-shifting trigger;and the phase-shifting angle was changed to adjust the out-put exciting current.The field test showed that the system met the design requirement by working stably with wide adjustment range and small ripple factor.

关 键 词：他励直流发电机 三相桥式全控整流 可控硅 移相触发 

分 类 号：TM91[电气工程—电力电子与电力传动]