电测与仪表Issue(22)：67-71,5.
有源电力滤波器优化变结构电流控制策略
Active Power Filter Optimal Variable-Structure Current Control Strategy
摘要
Abstract
A piecewise reaching law variable-structure current compensation control strategy was designed based on the modeling and analysis of the three-phase shunt active power filters in order to suppress the influence of the pa-rameter variation on the compensation effect in the operation process of the three-phase shunt active power filters. In the initial stage ,the variable-structure control adopted the constant exponential reaching law to increase the response speed of the system,then the variable exponential reaching law was adopted to make the system convergent to the slid-ing mode surface so that the chattering problem existing in the traditional variable-structure control was effectively e-liminated. The simulation and experiment results showed that the proposed variable-structure control strategy was in-sensitive to the system disturbance,the dynamic response speed of the system was fast,the current on the line side was sine wave and had nearly the same phase as the voltage,the THD of the current was low and the compensation effect was obviously better than that of the traditional variable-structure control strategy.关键词
有源电力滤波器/趋近律/变结构控制/电流补偿Key words
active power filter/reaching law/variable-structure control/current compensation分类
信息技术与安全科学引用本文复制引用
刘保连,王钰霖,丁祖军..有源电力滤波器优化变结构电流控制策略[J].电测与仪表,2014,(22):67-71,5.基金项目
江苏省高校自然科学基础研究面上项目资助 （）
