电测与仪表2016，Vol.53Issue(21)：35-40,6.
并联有源电力滤波器典型重复控制策略的分析与改进
Analysis and improvement of typical repetitive control strategy for shunt active power filter
杜旭 1乐健 1周武 1柳永妍 1刘开培1
作者信息
摘要
Abstract
Currently , the typical repetitive control used in shunt active power filter is normally composed of PI control and paralleling repetitive control .The application of this method is often limited due to the low open-loop gain in mid-dle band and the worse dynamic compensation effect caused by the PI controller existed in both the forward and feed -back channel .An improved repetitive control strategy is proposed in this paper , a PI controller is used to form the in-ner current loop with the purpose of correcting the response characteristics in middle and low frequency bands to im -prove the robustness of the control system .The high gain for harmonic signals is obtained by the repetitive control in the forward channel , and thus the expansion of middle bandwidth is improved .The dual current loop consists of PI in-ner current loop and repetitive control .The reference current feed forward to the PI inner current loop is designed to improve the response speed of APF .Finally, the simulation and experiment results verify the correctness and effective-ness of proposed control strategy are given .关键词
PI内环/重复控制/开环增益/并联有源电力滤波器Key words
PI inner loop/repetitive control/open-loop gain/shunt active power filter分类
信息技术与安全科学引用本文复制引用
杜旭,乐健,周武,柳永妍,刘开培..并联有源电力滤波器典型重复控制策略的分析与改进[J].电测与仪表,2016,53(21):35-40,6.
