Title :
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
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);
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
DOI :
10.1109/ICECTECH.2011.5941559
