Title :
A control strategy of hybrid active filter to compensate unbalanced load in three-phase three-wire power system
Author :
Wang, Yen-Ching ; Lee, Tzung-Lin
Author_Institution :
Dept. of Electr. Eng., Nat. Sun Yat-sen Univ., Kaohsiung, Taiwan
Abstract :
This paper presents a control strategy of hybrid active filter for compensation of the three-phase three-wire industrial power system considering unbalanced loading. In addition to harmonic current compensation, the hybrid filter is designed to compensate both positive- and negative-sequence reactive power based on the so-called instantaneous power theory. Therefore, the compensated system behaves as a resistive network even in a reactive, nonlinear, or unbalanced circuit. Theoretical analysis and experimental results are given to verify effectiveness of the proposed method.
Keywords :
active filters; reactive power control; harmonic current compensation; hybrid active filter control strategy; instantaneous power theory; negative-sequence reactive power; nonlinear circuit; positive-sequence reactive power; reactive circuit; three-phase three-wire industrial power system; three-phase three-wire power system; unbalanced circuit; unbalanced load compensation; Active filters; Capacitors; Harmonic analysis; Hybrid power systems; Passive filters; Power harmonic filters; Reactive power; Active filter; Unbalanced load;
Conference_Titel :
Power Electronics for Distributed Generation Systems (PEDG), 2012 3rd IEEE International Symposium on
Conference_Location :
Aalborg
Print_ISBN :
978-1-4673-2021-4
Electronic_ISBN :
978-1-4673-2022-1
DOI :
10.1109/PEDG.2012.6254041
