A Study on the Direct Stability Analysis of Multi-Machine Power System With Resistive SFCL

Author

Gum Tae Son ; Hee-Jin Lee ; Soo-Young Lee ; Jung-Wook Park

Author_Institution

Sch. of Electr. & Electron. Eng., Yonsei Univ., Seoul, South Korea

Volume

22

Issue

3

fYear

2012

fDate

6/1/2012 12:00:00 AM

Firstpage

5602304

Lastpage

5602304

Abstract

This paper describes a method for analyzing the direct stability of a multi-machine system that consists of three machines and one resistive superconductive fault current limiter (SFCL). The resistive SFCL, which affects the transient stability of a multi-machine power system, must be taken into account. In order to evaluate the transient stability in the power system, a direct stability analysis that has rapid prediction stability is used. Although the equal-area criterion method is useful in determining the stability as a transient stability evaluation method, the method is only applicable to a one-machine system connected to an infinite bus or to a two-machine system. Therefore, the transient energy function (TEF) should be constructed. Using the TEF, the effect of the SFCL in the multi-machine system can be identified by increasing the critical clearing time.

Keywords

power system transient stability; superconducting fault current limiters; TEF; critical clearing time; direct stability analysis; equal-area criterion method; infinite bus; multimachine power system; one-machine system; power system transient stability; resistive SFCL; resistive superconductive fault current limiter; transient energy function; transient stability evaluation method; two-machine system; Circuit stability; Potential energy; Power system stability; Stability criteria; Transient analysis; Critical clearing time; direct stability analysis; multi-machine system; resistive superconductive fault current limiter (SFCL); transient energy function (TEF);

fLanguage

English

Journal_Title

Applied Superconductivity, IEEE Transactions on

Publisher

ieee

ISSN

1051-8223

Type

jour

DOI

10.1109/TASC.2011.2177626

Filename

6092457