【摘要】 提出一种基于T型有源滤波器(APF)的三相整流器拓扑结构,给出了系统主电路参数设计方法,建立了T型APF的数学模型,设计了两种控制策略并进行了比较研究,即仅采用系统电流反馈控制策略和系统电流反馈控制与负载电流前馈控制相结合的控制策略。采用PSCAD/EMTDC对两种控制策略进行了仿真分析,并进行了实验验证。仿真和实验结果的一致性表明,本文提出的拓扑结构是可行的,提出的控制策略是有效的。更多还原

【Abstract】 A novel three-phase rectifier topology based on T-type active power filter (APF) is proposed. The design method of main circuit parameters is also given. The mathematical model of the T-type active power filter is deduced, and two control strategies, namely, source-side current feedback control strategy and source-side current feedback plus load current feed-forward control strategy are devised and compared. The proposed system is studied by digital simulation using PSCAD/EMTDC software and by experiments. The simulation and experimental results are consistent, which demonstrates the feasibility of the proposed topology and the effectiveness of the devised control strategies.更多还原