一种基于LCL滤波的APF控制方法研究  

Research on Control Method of APF Based on LCL Filter

作　　者：张渴 曾光[1] 杨波[1] 粟忠来 ZHANG Ke;ZENG Guang;YANG Bo;SU Zhonglai(Department of Electrical Engineering,Xi’an University of Technology,Xi’an 710048,Shaanxi,China;Xuji Group Corporation,Xuchang 461000,Henan,China)

机构地区：[1]西安理工大学电气工程系,陕西西安710048 [2]许继集团有限公司,河南许昌461000

出　　处：《电气传动》2017年第7期22-25,共4页Electric Drive

基　　金：陕西教育厅专项研究项目(2012JC18);陕西省重点学科建设专项资金资助项目(105-00X901)

摘　　要：传统的控制方法采用谐波电流集中检测的形式,这种方法补偿精度不高也不够灵活。将谐波分次检测结合前馈补偿的控制方法应用到基于LCL滤波的APF中。该方法通过对指令电流进行前馈补偿实现对指令电流的无差跟踪,同时可以灵活地选择补偿的谐波频次和容量。最后通过仿真和实验验证了将该控制方法应用到基于LCL滤波的APF的正确性和有效性。谐波分次检测结合前馈补偿的控制方法补偿效果良好,APF的容量也得到充分灵活的利用。The traditional control method adopts the form of centralized harmonic detection,this method has low precision and inflexibility.The control method which combined fractional harmonic detecting with feedforward compensation,was applied to the APF system based on LCL filter.This method accomplished tracking the reference current accurately by feedforward compensation.At the same time,it could flexibly decide which harmonic frequency and capacity to be compensated.Finally,the simulation and experiment results indicate the correctness andeffectiveness of control method.The control method of fractional harmonic detecting combined with feedforward compensation produces a better compensation effect,the capacity of APF has also been fully and flexibly utilized.

关 键 词：LCL滤波器 有源电力滤波器 谐波分次检测 前馈补偿 

分 类 号：TM46[电气工程—电器]