并联型APF的LCL输出滤波器设计  

Design of LCL Output Filter in Shunt APF

作　　者：王启羽 徐英雷[1] 付建辉[1] 刘露江 

机构地区：[1]西南交通大学,四川成都610031 [2]西安众辰电气科技有限公司,陕西西安710100

出　　处：《电力电子技术》2017年第12期104-108,共5页Power Electronics

摘　　要：针对电网中典型的谐波源和LCL滤波器工作特性,提出一种适用于并联型有源电力滤波器(SAPF)的LCL滤波器设计方法。由补偿电流跟踪性能和纹波要求确定总电感量;由低频补偿和高频滤波要求确定谐振频率范围;由网侧电流和变换器侧电流高频纹波衰减及谐振频率要求确定电感分配系数;由基波无功功率限制和谐振频率要求确定滤波电容值;给出了基于极点配置的反馈电容电流有源阻尼法。与L滤波器的对比仿真和实验结果证明了所提方法的正确性和优越性。Based on typical harmonic source and LCL filter working features, a design method of LCL filter applied to shunt active power filter（SAPF） is proposed.The total inductance is determined by tracking ability and ripple limit of current.The resonant frequency is determined by filtering ability on high frequency and compensation requirements on low frequency.The inductance distribution coefficient is determined by resonant frequency and current attenuation of power grid side and converter side on high frequency, the capacitor is determined by the constraint of reactive power and resonant frequency.An active damping method for feedback capacitance current based on pole allocation is given. Tile simulation and experimental results compared to the L filter proves the validity and the superiority of the pro- posed method.

关 键 词：有源电力滤波器 有源阻尼 谐振频率 

分 类 号：TN713.8[电子电信—电路与系统]