电容电压反馈的电流型整流器有源阻尼控制研究  

Active damping control research based on the LC filter capacitor voltage feedback techniques

作　　者：彭咏龙[1] 胡艳华[2] 朱劲波 

机构地区：[1]华北电力大学,河北保定071003 [2]河南职业技术学院,郑州450046

出　　处：《电测与仪表》2015年第14期55-58,共4页Electrical Measurement & Instrumentation

摘　　要：三相电流型PWM整流器在交流侧采用LC滤波器来滤除谐波,由于二阶LC滤波器的阻尼系数较小,容易引起网侧电流振荡。为此文中提出滤波电容电压反馈的有源阻尼控制,能够在不消耗有功功率的前提下,有效地滤除网侧电流谐波。通过仿真分析可知,提出的电容电压反馈能抑制网侧电流振荡。Three-phase current PWM Rectifiers use LC filters to filter harmonics at the AC side. Due to the small damped coefficient of the second order LC filter, current oscillation is easy to occur on the network side. In view of this, the paper proposed active damping control strategy using filter capacitor voltage feedback, which could effectively filter harmonics on the network side without consuming active power. Simulation results verified that the proposed con-trol strategy could effectively reduce current distortion.

关 键 词：电流型PWM整流器 LC谐振 有源阻尼 电容电压反馈 

分 类 号：TM933[电气工程—电力电子与电力传动]