一种新型的串联型有源电力滤波器  

A NEW TYPE SERIESACTIVE POWER FILTER

作　　者：李达义[1] 陈乔夫[1] 贾正春[1] 

机构地区：[1]华中科技大学,武汉430074

出　　处：《电力系统自动化》2000年第18期27-29,40,共4页Automation of Electric Power Systems

基　　金：国家自然科学基金资助项目!(5 96 770 2 )

摘　　要：提出一种新型的基于基波磁通补偿的串联型有源电力滤波器。从变压器的等效电路得出 ,只要在变压器的副方注入一个与其原方电流中基波分量方向相反、大小成一定比例的基波电流 ,便可使串联变压器对基波呈现原方的漏电抗 ,而对谐波呈现励磁阻抗。A new type series active power filter based on fundamental flux com pensation is proposed. By analyzing the transformer equivalent circuit,it is found that if a fundam ental current proportional and opposite to the fundamental current of the primary is injected into the secondary winding,the series transformer will present the prim ary winding leakage reactance to the fundam ental and the m agnetizing im pedance to the harmonics. Thus,the harm onics will be restrained. Experim ent results verify the effectiveness of such a kind of filter. This project is supported by National Natural Science Foundation of China No.5 96 770 2 .

关 键 词：有源电力滤波器 磁通 电力系统 无功功率补偿 

分 类 号：TN713[电子电信—电路与系统]