Computation of Optimal Reclosure Time for Transmission Lines

Author

Zhang, B. H. ; Yuan, Y. C. ; Chen, Zhe ; Bo, Z. Q.

Author_Institution

Xian Jiaotong University, Xi´an, China; De Montfort University, Leicester, U.K.; ALSTOM T&D Protection & Control Ltd., Stafford, U.K.

Volume

22

Issue

7

fYear

2002

fDate

7/1/2002 12:00:00 AM

Firstpage

56

Lastpage

56

Abstract

The reclosing time of a transmission line has a distinct influence on system stability. A new method of calculating the optimal reclosing time based on the transient energy function (TEF) is presented in this paper. It is shown that an optimal reclosing time can be used to set the autoreclosing device so that the system stability or power transfer capability can be significantly improved. Though power system TEF is based on classical models, the results from simulation studies of a real system (46 generators and 230 buses) with complex models show that the optimal reclosing time calculated using TEF can be used effectively.

Keywords

Eigenvalues and eigenfunctions; Power system analysis computing; Power system modeling; Power system simulation; Power system stability; Power system transients; Power transmission lines; Robustness; Synchronous generators; Transmission lines; Optimal reclosing time; system stability;

fLanguage

English

Journal_Title

Power Engineering Review, IEEE

Publisher

ieee

ISSN

0272-1724

Type

jour

DOI

10.1109/MPER.2002.4312393

Filename

4312393