Improvement of transient stability using unified power flow controller

Author

Mihalic, R. ; Zunko, P. ; Povh, D.

Author_Institution

Fac. of Electr. & Comput. Eng., Ljubljana Univ., Slovenia

Volume

11

Issue

1

fYear

1996

fDate

1/1/1996 12:00:00 AM

Firstpage

485

Lastpage

492

Abstract

The aim of the paper is to analyze the effect of a unified power flow controller (UPFC) on transient stability margin enhancement of a longitudinal power system. To utilize the UPFC possibilities fully, the three controllable UPFC parameters were determined during the digital simulation process performed by the NETOMAC simulation program. The basis for determination of the suitable damping strategy and for determination of the optimal UPFC parameters is a mathematical model, which describes the interdependence between longitudinal transmission system parameters, operating conditions and UPFC parameters in the form of analytical equations. On the basis of the mathematical model, the theoretical UPFC limits were also detected, and their appearance explained

Keywords

control system analysis computing; damping; flexible AC transmission systems; load flow; load regulation; optimal control; power system analysis computing; power system control; power system stability; power system transients; software packages; transmission networks; NETOMAC simulation program; control simulation; damping strategy; digital simulation; longitudinal power system; mathematical model; optimisation; transient stability; transmission system; unified power flow controller; Control systems; Load flow; Mathematical model; Power system analysis computing; Power system modeling; Power system simulation; Power system stability; Power system transients; Stability analysis; Transient analysis;

fLanguage

English

Journal_Title

Power Delivery, IEEE Transactions on

Publisher

ieee

ISSN

0885-8977

Type

jour

DOI

10.1109/61.484133

Filename

484133