逆变器直流侧有源滤波器对不平衡与非线性负载的补偿  

A DC-side Active Filter for Inverter Compensates for Unbalanced and Nonlinear Loads

作　　者：刘凤君[1] 

机构地区：[1]航天工业总公司二院206所,北京100854

出　　处：《电源技术应用》2002年第5期202-209,共8页Power Supply Technologles and Applications

摘　　要：介绍了一种逆变器直流侧有源滤波器系统,这个系统对消除逆变器输入端子处,由于不平衡与非线性负载引起的脉动电流是有效的。对于三相四线逆变器,在中性线中的零序电流也同样被消除。本系统具有响应速度快、效率高的特点。在较高不平衡或非线性负载时,也不需要过大的容性kVA。经分析,仿真和实验表明,这种直流侧有源滤波器系统是有效的。A DC-side active filtering system in inverter is presented. The system effectively eliminates the pulsating current in the inverter input terminals caused by the unbalanced or nonlinear type loads. In the case of a three-phase four-wire inverter, the circulating zero sequence current in the neutral are also eliminated. The system is fast in response, high in efficiency. So it does not necessitate excess capacitive kVA in case of higher unbalanced or nonlinear type loads. The analytical procedure, simulation and experimental results illustrate the effectiveness of the DC-side active filtering system.

关 键 词：逆变器 有源滤波器 非线性负载 补偿 不平衡负载 

分 类 号：TM464[电气工程—电器] TN713.8[电子电信—电路与系统]