单相有源电力滤波器的非线性切换控制  

Nonlinear switching control of single-phase active power filter

作　　者：张永峰[1] 程新功[1] 宗西举[1] 郭宝珠[2] 陈静 侯广松 

机构地区：[1]济南大学控制科学与工程学院,山东济南250022 [2]中国科学院数学与系统科学研究所,北京100190 [3]菏泽供电公司,山东菏泽274000

出　　处：《电力系统保护与控制》2011年第18期139-144,共6页Power System Protection and Control

基　　金：国家自然科学基金资助项目(60974032);山东省自然科学基金资助项目(ZR2011EEM024)~~

摘　　要：针对线性控制策略造成的有源电力滤波器(Active Power Filter,APF)补偿误差,利用非线性动力学的切换系统理论,提出了一种APF切换控制的新方法。首先建立APF切换系统精确模型,然后利用APF平衡状态推导出APF切换系统误差模型,在此基础上设计合理的切换路径作为系统的控制输入。该输入可以使系统渐近稳定,系统的误差状态变量趋于零,实现APF精确补偿。通过与传统线性电压控制策略进行仿真比较,结果验证了该方法的合理性和有效性。In view of the compensation error of Active Power Filter （APF） due to the traditional linear control strategy, a novel control approach of APF is proposed by using the switched system theory of nonlinear dynamics. Firstly, the accurate model of switched system of APF is established. On this basis, a switched system error model is established using APF balance state. After that, a reasonable switched path is designed as the system control input. The proposed approach ensures the error converges to zero and the compensation current tracks the reference accurately. Finally, by comparing with the traditional control strategy, the effectiveness and rationality of the approach proposed are shown by the simulation and comparison.

关 键 词：有源电力滤波器 切换系统 切换控制 误差模型 

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