基于无源化方法的三相四线制APF控制器策略  

Passivity-based Controller for Three-phase Four-wire APF

作　　者：陈菊明[1] 刘锋[2] 梅生伟[1] 

机构地区：[1]清华大学电机系电力系统国家重点实验室,北京市100084 [2]中国科学院系统科学研究所,北京市100080

出　　处：《电力系统自动化》2006年第8期32-36,56,共6页Automation of Electric Power Systems

基　　金：国家自然科学基金资助项目(50377018;K5112515E1)~~

摘　　要：电流跟踪控制是并联型有源电力滤波器(APF)的控制器设计的关键问题之一,利用APF的无源特性来实现电流跟踪控制可以取得较常规的线性和非线性控制器更好的控制效果。首先建立了三相四线制下四桥臂APF的状态空间模型;在此基础上利用无源控制方法构造电流跟踪动态控制器,然后基于APF的工作机理分析给出了实现渐近跟踪和内部稳定的充分条件;最后利用 PSCAD软件包对所提出的控制算法进行了仿真测试,证明了新算法的有效性。The current tracking control is one of issues in controller designs of shunt active power filter （APF）. The idea of passivity is a powerful tool to study the stabilization of the nonlinear system. In this paper, the state space model of the four-leg APF for three-phase four-wire systems is determined firstly, A new passivity-based current tracking dynamic controller is then proposed. Based on the analysis of the working principle of APF, the sufficient conditions to achieve the gradual tracking and to keep the internal stability of the APF control system are given. Simulation results performed in PSCAD verify the validity of the new approach.

关 键 词：电力有源滤波器 无源控制方法 跟踪控制 稳定性 

分 类 号：TM761[电气工程—电力系统及自动化] TN713.8[电子电信—电路与系统]