Current control for a shunt hybrid active power filter using recursive integral PI

• Published in: Journal of control theory and applications Vol. 7; no. 1; pp. 77 - 80
• Main Authors: Zhao, Wei, Luo, An, Peng, Ke, Deng, Xia
• Format: Journal Article
• Language: English
• Published: Heidelberg Editorial Board of Control Theory and Applications 01.02.2009; College of Electrical and Information Engineering,Hunan University,Changsha Hunan 410082,China
• Subjects: Complexity; Computational Intelligence; Control; Control and Systems Theory; Engineering; Mechatronics; Optimization; Robotics; Systems Theory; 主动控制; 控制理论; 模糊推理系统; 自适应神经网络; Fuzzy inference; Power electronics; Recursive integral PI; Shunt hybrid active power filter
• ISSN: 1672-6340; 1993-0623
• DOI: 10.1007/s11768-009-7028-3

This paper presents a current control method for a shunt hybrid active power filter （HAPF） using recursive integral PI algorithm. The method improves the performance of the HAPF system by reducing the influence of detection accuracy, time delay of instruction current calculation and phase displacement of output filter. Fuzzy logic based set-point weighing algorithm is combined in the control scheme to enhance its robustness and anti-interference ability. The proposed algorithm is easy to implement for engineering applications and easy to compute. Experiment results have verified the validity of the proposed controller. Furthermore, the proposed recursive integral PI algorithm can also be applied in the control of periodic current as in AC drivers.