Parallel operation of three-phase four-wire active power filters without control interconnection

Author

Chiang, S.J. ; Ai, W.J.

Author_Institution

Dept. of Electr. Eng., Nat. Lien Ho Inst. of Technol., Miao-Li, Taiwan

Volume

3

fYear

2002

fDate

2002

Firstpage

1202

Abstract

This paper presents the parallel operation of the three-phase four-wire active power filters (APFs). Functions of the proposed APF include compensation of reactive power, harmonic current, unbalanced power and zero-sequence current of the load. The objective is to achieve unity power factor, balanced line current and zero neutral-line current. Compensation of all components is capacity-limited, cooperating with the cascaded load current sensing scheme, multiple APFs can be paralleled to share the load power without requiring any control interconnection. Besides providing the theoretic bases and detailed design of the APFs, two 6 kVA APFs are implemented. The effectiveness of the proposed methods is validated with some experimental results.

Keywords

active filters; compensation; harmonic distortion; power harmonic filters; reactive power; 6 kVA; balanced line current; harmonic current; reactive power compensation; three-phase four-wire active power filters; unbalanced power; unity power there-phase four-wire APF control technique that the factor; zero neutral-line current; zero sequence current load; Active filters; Bandwidth; Current distribution; Integrated circuit interconnections; Inverters; Power harmonic filters; Power system harmonics; Power system reliability; Reactive power; Switching frequency;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics Specialists Conference, 2002. pesc 02. 2002 IEEE 33rd Annual

Print_ISBN

0-7803-7262-X

Type

conf

DOI

10.1109/PSEC.2002.1022339

Filename

1022339