基于死区补偿控制的三相PWM整流器研究  

Research on three-phase PWM rectifier based on dead zone compensation control

作　　者：袁俊波 YUAN Junbo(Guangzhou Shentie Traction Equipment Ltd.,Guangzhou 510530,China)

机构地区：[1]广州神铁牵引设备有限公司,广东广州510530

出　　处：《铁道机车与动车》2024年第8期16-19,I0001,共5页Railway Locomotive and Motor Car

摘　　要：三相PWM整流器在新能源机车中既可以将直流电转换为380V交流电为机车负载提供电能,又可以将380V交流电转换成直流电为列车的动力锂电池进行充电。基于三相可控整流的SVPWM控制,研究了一种在静止两相坐标系下的死区补偿方法,该方法可有效改善三相PWM整流器工作时对380V电网的电能质量影响、降低并网电流THD。The three-phase PWM rectifier in new energy locomotives not only can convert DC into 380 V AC for providing power to locomotive loads,but also can convert 380V AC into DC for charging the lithium battery.On the basis of SVPWM control based on threephase controllable rectification,we studied a dead zone compensation method in a stationary two-phase coordinate system.This method can effectively improve the power quality of 380 V grid and reduce the gridconnected current THD during the three-phase PWM rectifier operation.

关 键 词：PWM 死区补偿 SVPWM THD 

分 类 号：TM921.45[电气工程—电力电子与电力传动]