UPQC的双向多功能补偿特性及其实验研究

Study and Experimental Verification of Bilateral Multiple Compensation Functions of UPQC

随着电网中越来越多非线性负载的投入使用,电能质量问题日益严重。本文研究了基于双变流器结构的通用电能质量控制器,它具有能对来自电网侧和来自负载侧两个方向上的多种电能质量问题进行补偿的特性。文章对其系统结构、工作原理及实现双向多种补偿功能的控制方法进行了探讨和分析,并通过充分的实验分析,验证了该电能质量控制器双向多种补偿功能的单独运行和同时实现。

With the applications of more and more power electronics equipments,the power quality issues become more and more severe.This paper proposes a universal power quality controller(UPQC)with double converter structure,and introduces its operation principle,and the control methods to implement the multiple compensation functions.Plenty of experiments are carried out,and they verify that the universal power quality controller can effectively compensate multiple power quality problems either from the load side or from the line side.