控制理论与应用2011,Vol.28Issue(5):652-658,7.
单相有源电力滤波器非线性统一控制策略
Nonlinear unified control for single-phase active power filter
摘要
Abstract
Existing active power filter controllers are composed of the current inner loop and the voltage outer loop. We present a unified control method based on exact feedback linearization for the single-phase active power filter. By solving a partial differential equation, we obtain the output function containing the information of the compensation current and DC side voltage variables. The nonlinear state feedback control law is derived, thus transforming the nonlinear system into a diffeomorphism second-order linear system. By properly selecting feedback coefficients, we design the controller which forces the output function to asymptotically track the reference output, thus realizing the unified control of the compensation current and the DC side voltage. The efficacy of the proposed control method is verified by simulation and experiment.关键词
有源电力滤波器/统一控制/精确反馈线性化/偏微分方程/微分同胚Key words
active power filter/ unified control/ exact feedback linearization/ partial differential equation/ diffeomor-phisms分类
信息技术与安全科学引用本文复制引用
乐江源,谢运祥,公伟勇,张志..单相有源电力滤波器非线性统一控制策略[J].控制理论与应用,2011,28(5):652-658,7.基金项目
教育部科学技术研究重点资助项目(109128) (109128)
江西省教育厅青年科学基金资助项目(GJJ10237). (GJJ10237)