一种无谐波检测的并联型电能质量调节器  

A Parallel Power Quality Conditioner Without Harmonic Detection

作　　者：张艳军[1] 杨晟飞[1] 张荣[1] 

机构地区：[1]中国船舶重工集团公司第七0四研究所,电源及自动控制工程部,上海200031

出　　处：《电力电子技术》2015年第1期85-87,共3页Power Electronics

摘　　要：介绍了一种无谐波检测的并联型电能质量调节器(PPQC),可同时补偿谐波和无功而无需对其进行检测。通过研究交流侧与直流侧能量交换的过程和规律,采用控制流入直流侧电流大小和方向的方法使直流侧电压稳定。详细分析了负载有功电流对直流侧电压的影响;将负载有功电流作为扰动,提出了一种无谐波检测的新型控制策略,省去了复杂的检测算法,避免了检测误差和延时。实验结果表明所提无谐波检测的PPQC具有较好的谐波、无功补偿效果及较快的动态响应速度。A non-harmonic detection parallel power quality conditioner（PPQC） is introduced,which can compensate harmonics and reactive power without detection.By studying the energy exchange process and principle between AC side and DC side, a DC voltage control method controlling the magnitude and direction of the currenttlowing into DC side to make DC voltage steady is proposed.The influence of load active current on the DC voltage is analyzed in detail.A new non-harmonic detection control strategy is proposed with load active current as a perturbation.The proposed control strategy avoids complex detection algorithm,errors and delay caused by detection algorithm.Experimental results exhibit excellent harmonic and reactive power compensation performance and fast dynamic response speed.

关 键 词：电能质量调节器 并联型 无谐波检测 能量平衡 

分 类 号：TM714[电气工程—电力系统及自动化]