A new control scheme for unified power quality conditioner (UPQC)

Author

Rajasree, R. ; Premalatha, S. ; Bhaskar, M. Arun ; Meenatchi, V. ; Vidya, B. ; Kumar, S. Suresh

Author_Institution

Dept. of EEE, Velammal Eng. Coll., Chennai, India

Volume

1

fYear

2011

fDate

8-10 April 2011

Firstpage

54

Lastpage

58

Abstract

This paper presents a solution to the control of a unified power quality (PQ) conditioner (UPQC) for Power Quality improvement in power distribution systems. The problem formulation allows not only harmonic compensation but also voltage sags/swells, load demand changes, and power factor correction to be tackled in a unified framework. The proposed controller combines the multivariable regulator theory with H_∞, loop shaping, so that zero steady-state error and insensitivity to supply frequency variations can be accomplished simultaneously. The effectiveness of the proposed controller is, in practice, verified by experimental studies on a single-phase power distribution system.

Keywords

H^∞ control; multivariable control systems; power distribution control; power factor correction; power supply quality; H^∞ loop shaping; control scheme; load demand; multivariable regulator theory; power distribution systems; power factor correction; unified power quality conditioner; voltage sags/swells; Active filters; Feeds; Harmonic analysis; Kalman filters; Power harmonic filters; Power quality; Voltage fluctuations; Active filter; H-infinity loop shaping; Kalman filters; harmonic compensation; multivariable regulator; power quality (PQ); unified PQ conditioners (UPQCs);

fLanguage

English

Publisher

ieee

Conference_Titel

Electronics Computer Technology (ICECT), 2011 3rd International Conference on

Conference_Location

Kanyakumari

Print_ISBN

978-1-4244-8678-6

Electronic_ISBN

978-1-4244-8679-3

Type

conf

DOI

10.1109/ICECTECH.2011.5941559

Filename

5941559