Computation of optimal reclosure time for transmission lines

Author

Zhang, Baohui H. ; Yuan, Yuchun C. ; Chen, José ; Bo, Zhiqian Q.

Author_Institution

Dept. of Electr. Eng., Xi´´an Jiaotong Univ., China

Volume

17

Issue

3

fYear

2002

fDate

8/1/2002 12:00:00 AM

Firstpage

670

Lastpage

675

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 has been 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

load flow; optimisation; power system stability; power transmission faults; power transmission lines; power transmission protection; transmission network calculations; autoreclosing device; optimal reclosure time computation; power system stability; power transmission lines; power-transfer capability; simulation studies; transient energy function; Acceleration; Circuit breakers; Circuit faults; Fatigue; Power system modeling; Power system transients; Power transmission lines; Shafts; Stability; Transmission lines;

fLanguage

English

Journal_Title

Power Systems, IEEE Transactions on

Publisher

ieee

ISSN

0885-8950

Type

jour

DOI

10.1109/TPWRS.2002.800910

Filename

1033709