基于统的一数学模型的三相四线制并联有源电力滤波器的参数优化方法.pdf

2012 年 10 月 电 工 技 术 学 报 Vol.27 No. 10 第 27 卷第 10 期 TRANSACTIONS OF CHINA ELECTROTECHNICAL SOCIETY Oct. 2012 基于统一数学模型的三相四线制并联 有源电力滤波器的参数优化方法 乐 健 刘开培 （武汉大学电气工程学院 武汉 430072 ） 摘要 提出了一种适用于各种拓扑结构和开关控制策略的四线制并联有源电力滤波器(APF) 关键参数的优化设计方法。本文以满足响应速度和控制精度的要求作为优化目标，基于统一数学 模型和各桥臂输出能力指标，求解得到桥臂输出电感值在给定直流侧电容和直流侧电压时的约束 条件。结合实例说明了桥臂输出电感在该约束范围内的优化取值方法。最后通过仿真计算验证了 所提出的参数优化算法的正确性和有效性，而且，所需数据少、容易获取，为提高APF 设计水平 和实用化程度提供了理论依据和实用方法。 关键词：三相四线 并联有源电力滤波器 参数优化 统一数学模型 中图分类号：TM343; TM31 Parameters Optimization Method of Three-Phase Four-Wire Shunt Active Power Filter Based on Unified Mathematical Model Le Jian Liu Kaipei （Wuhan University Wuhan 430072 China ） Abstract This paper proposes a novel parameters optimization method applicable to three-phase four-wire shunt active power filter with various kinds of topologies and control strategies. The optimization goal is to satisfy the requirement of response speed and control accuracy simultaneously. The value constrains of output inductors under a given DC side voltage and DC side capacitance are derived based on the proposed optimization goals ，the unified mathematical model and the output capacity index of each leg. The method to select an optimal value of the output inductance is explained through an example. Simulation results are given to show the correctness and validity of the proposed method. This method is applicable to various topologies and switching control strategies, and needs a few and readily available data. It can be used as a theoretical basis and practical approach to improve the design and practical use level of the APF. Keywords