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

fYear

2012

fDate

25-28 June 2012

Firstpage

450

Lastpage

456

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;

fLanguage

English

Publisher

ieee

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

Type

conf

DOI

10.1109/PEDG.2012.6254041

Filename

6254041