并联型有源滤波器直流侧电压脉动分析及电压环改进设计  

Analysis of Voltage Ripple on DC Side of Shunt Active Power Filter and Improvement of Voltage Loop Design

作　　者：汪宇航 王海欣[1] 黄海宏[1] WANG Yuhang;WANG Haixin;HUANG Haihong(School of Electrical Engineering and Automation,Hefei University of Technology,Hefei 230009,China)

机构地区：[1]合肥工业大学电气与自动化工程学院,安徽合肥230009

出　　处：《电器与能效管理技术》2020年第9期57-62,共6页Electrical & Energy Management Technology

摘　　要：并联型有源滤波器(SAPF)在补偿谐波电流时,直流电容电压会有相应的脉动,会对补偿效果产生不良影响。分别基于三相三线制和三相四线制对电容电压脉动产生的原因进行理论分析,提出在电压环中串入特定频率的陷波器。通过仿真和实验,验证了改进电压环能够降低电容电压脉动带来的影响。When the shunt active power filter(SAPF)compensates the harmonic current,the DC capacitor voltage will have corresponding pulsation,which will have a bad effect on the compensation effect.Based on three-phase three wire system and three-phase four wire system,the causes of capacitor voltage ripple are analyzed theoretically,and a notch filter with specific frequency is put into the voltage loop.The simulation and experiment show that the improved voltage loop can reduce the influence of capacitor voltage ripple.

关 键 词：并联型有源电力滤波器(SAPF) 直流侧电压脉动分析 电压环 陷波器 

分 类 号：TM713[电气工程—电力系统及自动化]