A study on the application of the DVR system using EMTDC program

Author

Choy, Y.D. ; Kwak, N.H. ; Jeon, Y.S. ; Jeon, D.H. ; Kim, T.K. ; Shin, J.H.

Author_Institution

KEPRI, Daejeon, South Korea

fYear

2009

fDate

26-30 Oct. 2009

Firstpage

1

Lastpage

4

Abstract

Voltage sag(instantaneous voltage drop) of the grid system is the most frequent power quality problem. The impact of sag to the sensitive loads is severe. And load disruptions by sag bring about substantial economic losses up to millions of dollars. DVR is one of the CPD(custom power device) that can mitigate the voltage sag. It operates as a series connected compensator whose output voltage can control the voltage of the system. And the magnitude of compensation voltage of DVR is limited by the characteristics of system and load. We simulate the compensation capability of DVR by EMTDC. Also we test the effect of DVR´s compensation at `Power quality test center´ which is composed of SSFG(Sag, Swell, and Flicker Generator) SSTS, DVR, DSTATCOM, and loads.

Keywords

power engineering computing; power supply quality; static VAr compensators; DSTATCOM; EMTDC program; custom power device; distribution static compensator; dynamic voltage restorer; flicker generator; grid system; instantaneous voltage drop; power quality problem; voltage sag; Control systems; EMTDC; Power generation; Power quality; Power system reliability; Power system restoration; Switches; Testing; Voltage control; Voltage fluctuations; DSTATCOM; DVR; EMTDC; Flicker; Power Quality; SSTS; Voltage Sag; Voltage Swell;

fLanguage

English

Publisher

ieee

Conference_Titel

Transmission & Distribution Conference & Exposition: Asia and Pacific, 2009

Conference_Location

Seoul

Print_ISBN

978-1-4244-5230-9

Electronic_ISBN

978-1-4244-5230-9

Type

conf

DOI

10.1109/TD-ASIA.2009.5356935

Filename

5356935