Performance Improvement of Parallel Active Power Filters Using Droop Control Method

Author

Falahi, Ghazal ; Mokhtari, Hossein

Author_Institution

Sch. of Electr. Eng., Sharif Univ. of Technol., Tehran

fYear

2009

fDate

27-31 March 2009

Firstpage

1

Lastpage

4

Abstract

In this paper, a new method based on droop control scheme is proposed for controlling parallel operation of active filters. The harmonic components of the load current are extracted by an enhanced phase-locked loop (EPLL). In the parallel group, each filter operates as a conductance and the harmonic workload is shared among them. A droop relationship between the conductance and non-fundamental apparent power controls the operation of each unit. The non-fundamental apparent power has been calculated based on IEEE Std 1459. Principles of operation are explained in this paper and simulation results which are presented approve the effectiveness of this method. The results indicate a significant reduction in total harmonic distortion (THD) in a rectifier application.

Keywords

active filters; harmonic distortion; phase locked loops; power control; power harmonic filters; rectifying circuits; EPLL; IEEE Std 1459; droop control method; enhanced phase-locked loop; harmonic component; nonfundamental apparent power control; parallel active power filter; total harmonic distortion; Active filters; Control systems; Electrical engineering; Frequency; Phase locked loops; Pollution; Power harmonic filters; Power quality; Power system harmonics; Power system reliability;

fLanguage

English

Publisher

ieee

Conference_Titel

Power and Energy Engineering Conference, 2009. APPEEC 2009. Asia-Pacific

Conference_Location

Wuhan

Print_ISBN

978-1-4244-2486-3

Electronic_ISBN

978-1-4244-2487-0

Type

conf

DOI

10.1109/APPEEC.2009.4918590

Filename

4918590