Under Voltage Load Shedding (UVLS) study for 746 test bus system

Author

Verayiah, R. ; Ramasamy, A. ; Abidin, H. I Zainal ; Musirin, I.

Author_Institution

Electr. Power Eng., Univ. Tenaga Nasional, Kajang, Malaysia

fYear

2009

fDate

7-8 Dec. 2009

Firstpage

98

Lastpage

103

Abstract

Voltage collapse phenomenon is known to be complex and localized in nature but with a widespread effect. The ultimate effect of voltage collapse would be total system collapse which would incur high losses to utility companies. Thus, online monitoring of power system stability has become a vital factor for electric utility companies. One of the methods to avoid voltage collapse is to perform Under Voltage Load Shedding (UVLS). Fast Voltage Stability Index (FVSI) index is proven to be a good indicator for voltage stability in a system. This paper analyzes the correlation between FVSI and the placement of UVLS relays for a 746 test bus system. It is found from the simulations results that FVSI index can be used as an indicator for the placement of UVLS relays in a power system network.

Keywords

load shedding; power system dynamic stability; 746 test bus system; electric utility companies; power system network; power system stability; under voltage load shedding study; voltage collapse phenomenon; voltage stability index index; Analytical models; Frequency; Power system analysis computing; Power system faults; Power system relaying; Power system simulation; Power system stability; Power system transients; System testing; Voltage; FVSI; UVLS; Voltage Stability;

fLanguage

English

Publisher

ieee

Conference_Titel

Energy and Environment, 2009. ICEE 2009. 3rd International Conference on

Conference_Location

Malacca

Print_ISBN

978-1-4244-5144-9

Electronic_ISBN

978-1-4244-5145-6

Type

conf

DOI

10.1109/ICEENVIRON.2009.5398661

Filename

5398661