PDF全文下载:2015040432
杨智杰, 王淑红*, 闫珺, 武潇
(太原理工大学 电气与动力工程学院,山西 太原 030024)
摘要: 针对传统PI控制不能无静差地跟踪交流信号、重复控制动态响应速度较慢的问题以及为了更好消除非周期性信号对系统控制性能的影响,本研究采用了一种PI控制和改进重复控制相串联的复合控制策略,该方法中加入了比例控制前馈和误差调整系数以提高系统对非周期性信号的抗扰性能,控制策略综合了重复控制和PI控制的优点,可以有效地消除系统的稳态误差、增强系统的鲁棒性并具有良好的动态电流响应。Matlab/Simulink仿真结果验证了该控制策略的正确性和有效性。
关键词: 并联型有源滤波器; 重复控制; PI控制; 空间矢量脉宽调制(SVPWM)
中图分类号:TN 713 文献标志码:
A Shunt Active Power Filter Based on Compound Control
YANG Zhijie, WANG Shuhong, YAN Jun, WU Xiao
(College of Electrical and Power Engineering,Taiyuan University of Technology, Taiyuan 030024, China)
Abstract: In view of problems that traditional PI control cannot track AC signal without static error and repetitive control has slow dynamic response speed as well as in order to reduce the impact of controlling about nonperiodic signal effectively, the paper proposed an improved repetitive control and PI control series compound control strategy. The addition of control feed forward and error proportion coefficients in the algorithm improved the system disturbance restraint performance aiming at nonperiodic signal. This compound control combined the advantages of PI control and repetitive control, which could effectively eliminate the steadystate errors, improve the robustness of the system and have good dynamic current response. Matlab/Simulink simulation result validates correctness and feasibility of the control strategy.
Key words: shunt active power filter; repetitive control; PI control; space vector pulse width modulation(SVPWM)
收稿日期: 20141118
作者简介: 杨智杰(1987—),男,硕士研究生. *通信联系人.
文章编号:16726987(2015)04043206; DOI: 10.16351/j.16726987.2015.04.016