A unified power quality conditioner for voltage regulation of critical load bus

Author

Ghosh, Arindam ; Jindal, Amit Kumar ; Joshi, Avinash

Author_Institution

Dept. of Electr. Eng., Indian Inst. of Technol., Kanpur, India

fYear

2004

fDate

6-10 June 2004

Firstpage

471

Abstract

The paper discusses the operation and performance of a unified power quality conditioner (UPQC). A UPQC is a versatile device that can be used for various functions. The main aim of the paper is to operate the UPQC in such a way that it tightly regulates the bus voltage of critical loads against unbalance, harmonics, voltage sag/swell and other disturbances occurring in a distribution system. The performance of the UPQC is compared to that of a dynamic voltage restorer (DVR). Both the UPQC and the DVR are operated in the closed-loop state feedback switching control. Through simulation studies using PSCAD/EMTDC it is shown that the UPQC performs significantly better than the DVR.

Keywords

closed loop systems; power distribution faults; power engineering computing; power supply quality; state feedback; voltage control; EMTDC; PSCAD; closed-loop state feedback switching control; critical load bus; distribution system; dynamic voltage restorer; unified power quality conditioner; voltage regulation; Capacitors; Converters; EMTDC; Inverters; PSCAD; Power conversion; Power harmonic filters; Power quality; Voltage control; Voltage fluctuations;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Engineering Society General Meeting, 2004. IEEE

Print_ISBN

0-7803-8465-2

Type

conf

DOI

10.1109/PES.2004.1372840

Filename

1372840