Analysis of voltage sag in an industrial distribution system of the provincial electricity authority of Thailand

Author

Chiangkakun, N. ; Premrudeepreechacharn, S. ; Pongsriwat, C. ; Baghzouz, Y.

Author_Institution

Dept. of Electr. Eng., Chiang Mai Univ., Chiang Mai, Thailand

fYear

2012

fDate

17-20 June 2012

Firstpage

197

Lastpage

202

Abstract

This paper presents a calculation of voltage sag magnitude, area of vulnerability spectrum and method for SARFI-indices due to a fault in distribution system of Provincial Electricity Authority of Thailand. Voltage sag is related to power quality problems and reliability of utility. Analysis of voltage sag will help utilities to determine and predict the area of vulnerability in distribution system. The SARFI-indices can reveal a reliability of utility to industrial customers. For this paper, voltage sag analysis is performed by using DIgSILENT Power Factory programs for short circuit simulations and presentation of area of vulnerability spectrum. Distribution network is modeled by using actual network data with geographic information system (GIS).

Keywords

power distribution faults; power distribution reliability; power supply quality; DIgSILENT Power Factory programs; GIS; Provincial Electricity Authority of Thailand; SARFI-indices; distribution network; distribution system fault; geographic information system; industrial distribution system; network data; power quality problems; short circuit simulations; utility reliability; voltage sag analysis; voltage sag magnitude; vulnerability spectrum; Circuit faults; Indexes; Switches; SARFI-indices; Voltage sag; area of vulnerability spectrum; distribution system; voltage sag frequency;

fLanguage

English

Publisher

ieee

Conference_Titel

Harmonics and Quality of Power (ICHQP), 2012 IEEE 15th International Conference on

Conference_Location

Hong Kong

ISSN

1540-6008

Print_ISBN

978-1-4673-1944-7

Type

conf

DOI

10.1109/ICHQP.2012.6381195

Filename

6381195