电力系统及其自动化学报2017，Vol.29Issue(7)：46-52,7.DOI:10.3969/j.issn.1003-8930.2017.07.008
基于矢量谐振控制的三相四线制APF控制策略
Control Strategy of Three-phase Four-wire APF Based on Vector-resonant Control
摘要
Abstract
The three-phase four-wire active power filter(APF)can effectively solve the power quality problems includ?ing harmonic pollution and imbalance,which are caused by the nonlinear load in a 0.4 kV low voltage power distribu?tion system. In order to improve the dynamic performance of APF,a control strategy based on vector-resonant control (VRC)is proposed in this paper. First,a mathematical model of three-phase four-wire APF is established in dq0 rota?tional coordinate by adopting the power supply current and DC bus voltage as state variables.Second,based on the principle of non-harmonic detection control,the proposed control strategy realizes a fast tracking control of the AC har?monic components by making use of the advantages of VRC,such as good frequency adaptation and large stability mar?gin.The proposed strategy has the characteristics of fast dynamic response,high steady-state precision and small com?putational load. Meanwhile,it is digitally realized with the help of delta transform.Finally,the proposed control strate?gy was validated by a 30 kV·A prototype developed in laboratory,and the desired results were achieved.关键词
矢量谐振控制/三相四线制APF/无谐波检测/delta变换Key words
vector-resonant control/three-phase four-wire APF/non-harmonic detection/delta transform分类
信息技术与安全科学引用本文复制引用
刘翼肇,王磊,任春光,韩肖清,杨宇..基于矢量谐振控制的三相四线制APF控制策略[J].电力系统及其自动化学报,2017,29(7):46-52,7.基金项目
山西省煤基重点科技攻关项目(MD2014-06) （MD2014-06）
