A new method for power system transient instability detection

Author

Wang, Liancheng ; Girgis, Adly A.

Author_Institution

Dept. of Electr. & Comput. Eng., Clemson Univ., SC, USA

Volume

12

Issue

3

fYear

1997

fDate

7/1/1997 12:00:00 AM

Firstpage

1082

Lastpage

1089

Abstract

Reliability and computational simplicity are of primary importance in developing on-line instability detection methods. With regard to these requirements, this paper has proposed a new method for instability detection based on generator angles, angular velocities, and their rates of change. According to the developed method, system instability or out-of-step condition is detected by identifying the characteristics-concave or convex-of a surface on which the post-fault system trajectory lies. The variation mode and probabilistic property of the proposed index are investigated by using the 10 machine 39 bus IEEE test system

Keywords

angular velocity; electric generators; power system stability; power system transients; probability; 10 machine 39 bus IEEE test system; angular velocities; computational simplicity; generator angles; on-line instability detection methods; out-of-step condition; post-fault system trajectory; power system transient instability detection; probabilistic property; reliability; variation mode; Angular velocity; Decision trees; Impedance measurement; Power system dynamics; Power system faults; Power system measurements; Power system stability; Power system transients; Relays; Voltage;

fLanguage

English

Journal_Title

Power Delivery, IEEE Transactions on

Publisher

ieee

ISSN

0885-8977

Type

jour

DOI

10.1109/61.636874

Filename

636874