Controlled series compensation for improving the stability of multi-machine power systems

Author

Chen, X.R. ; Pahalawaththa, N.C. ; Annakkage, U.D. ; Kumble, C.S.

Author_Institution

Dept. of Electr. & Electron. Eng., Auckland Univ., New Zealand

Volume

142

Issue

4

fYear

1995

fDate

7/1/1995 12:00:00 AM

Firstpage

361

Lastpage

366

Abstract

The application of controlled series compensators (CSCs) to increase the damping of dynamic oscillations in multimachine power systems is described. A CSC controller design is presented based on a linearised model of the power system around a given nominal operating point. The pole placement technique is used for calculating the controller feedback gains. A procedure for determining an optimum location for installing a CSC in a power system to provide the most effective damping is investigated. A technique for coordinating CSCs when it is necessary to use more than one CSC in a power system is also discussed. Computer simulations are used to demonstrate the effectiveness of CSCs in increasing the damping of power system dynamic oscillations. A simple power system with nine buses and three synchronous machines is used to demonstrate the design procedure

Keywords

circuit oscillations; control system analysis computing; control system synthesis; damping; digital simulation; feedback; linearisation techniques; optimal control; poles and zeros; power system analysis computing; power system control; power system stability; reactive power control; VAr; buses; computer simulation; controlled series compensators; controller design; controller feedback gains; damping; dynamic oscillations; linearised model; multi-machine power systems; pole placement technique; stability improvement; synchronous machines;

fLanguage

English

Journal_Title

Generation, Transmission and Distribution, IEE Proceedings-

Publisher

iet

ISSN

1350-2360

Type

jour

DOI

10.1049/ip-gtd:19951818

Filename

404144