一种可调直流侧电压的串联有源交流电压质量调节器  

An Active Voltage Quality Regulator With Variable DC-Link Voltage

作　　者：肖国春[1] 胡志亮[1] 张磊[1] 王兆安[1] 

机构地区：[1]西安交通大学电气工程学院,西安710049

出　　处：《电工技术学报》2010年第10期176-182,共7页Transactions of China Electrotechnical Society

基　　金：国家自然科学基金资助项目(50877065)

摘　　要：提出一种采用晶闸管可控整流代替二极管不可控整流的可调直流侧电压的串联有源交流电压质量调节器拓扑,并对该电压质量调节器的工作原理和控制方法进行了仿真和实验研究,证明所提出拓扑结构和控制方法的正确性。2kVA实验装置测试表明,在相同的电源和负载条件下,典型工况(欠电压210V),不可调直流侧电压拓扑的效率为89.1%,而可调直流侧电压拓扑的效率达到96.1%,效率提高7.0%;电源过电压时,效率提高更多。In the paper,a topology of an active voltage quality regulator（AVQR） with variable DC-link voltage is proposed in which a diode-rectifier is replaced by a thyristor-rectifier.The principle and control strategy of the AVQR are presented subsequently.The validity and effectiveness of the proposed topology and control algorithm are verified by simulation and experimental results.In an undervoltage case,under the same supply voltage and load conditions,the efficiency increases 7.0% from 89.1% of uncontrolled dc-link voltage to 96.1% of variable DC-link voltage on a 2kVA prototype,and the efficiency increases more significantly in an overvoltage case.

关 键 词：有源电压质量调节器 无变压器 电能质量 可调直流侧电压 效率 

分 类 号：TM761[电气工程—电力系统及自动化] TM464