Robust switched fractional controller for performance improvement of single phase active power filter under unbalanced conditions

作     者：H. AFGHOUL F. KRIM D. CHIKOUCHE A. BEDDAR 

作者机构：LASS Laboratory Electronics Department Technology faculty University Mohamed Boudiaf of M'sila BP.166 Route Ichebilia M'sila28000 Algeria LEPCI Laboratory Electronics Department University of Ferhat AbbasSetif-1 route de B6jaia Setif 19000 Algeria Department of Electrical Engineering Technology faculty SkikdaUniversity Skikda 21000 Algeria 

出 版 物：《Frontiers in Energy》 (能源前沿（英文版）)

年 卷 期：2016年第10卷第2期

页      面：203-212页

核心收录：

学科分类：080902[工学-电路与系统] 0809[工学-电子科学与技术（可授工学、理学学位）] 08[工学] 0835[工学-软件工程] 0802[工学-机械工程] 080201[工学-机械制造及其自动化] 

基　　金：support and cooperation of Renewable Energy Laboratory personnel in Setif-1 University for providing data  material and advices  especially B. Babes 

主　　题：conventional PI controller fractional calculus(FC) total harmonic distortion (THD) Oustaloup contin-uous approximation (OCA) single phase active power filter(SPAPF) 

摘      要：A novel controller is proposed to regulate the DC-link voltage of a single phase active power filter （SPAPF）. The proposed switched fractional controller （SFC） consists of a conventional PI controller, a fractional order PI （FO-PI） controller and a decision maker that switches between them. Commonly, the conventional PI controller is used in regulation loops due to its advantages in steady-state but it is limited in transient state. On the other hand, the FO-PI controller overcomes these draw- backs but it causes dramatic degradation in control performances in steady-state because of the fractional calculus theory and the approximation method used to implement this kind of controller. Thus, the purpose of this paper is to switch to the PI controller in steady-state to obtain the best power quality and to switch to the FO-PI controller when external disturbances are detected to guarantee a fast transient state. To investigate the efficiency and accuracy of the SFC considering all robustness tests, an experimental setup has been established. The results of the SFC fulfill the requirements, confirm its high performances in steady and transient states and demon- strate its feasibility and effectiveness. The experiment results have satisfied the limit specified by the IEEE harmonic standard 519.