A Robust Control Strategy for Shunt and Series Reactive Compensators to Dame Electromechanical Oscillations

Author

Noroozian, M. ; Ghandhari, M. ; Andersson, Goran ; Gronquist, Jim ; Hiskens, Ian

Author_Institution

ABB Power Systems, Vastera´s, Sweden; Royal Institute of Technology, Stockholm, Sweden; Bios Group, Santa Fe, NM; University of Newcastle, Australia

Volume

21

Issue

7

fYear

2001

fDate

7/1/2001 12:00:00 AM

Firstpage

72

Lastpage

72

Abstract

This paper examines the enhancement of power system stability properties by use of thyristor controlled series capacitors (TCSCs) and static var systems (SVCs). Models suitable for incorporation in dynamic simulation programs used to study angle stability are analyzed. A control strategy for damping of electromechanical power oscillations using an energy function method is derived. Using this control strategy each device (TCSC and SVC) will contribute to the damping of power swings without deteriorating the effect of the other power oscillation damping (POD) devices. The damping effect is robust with respect to loading condition, fault location, and network structure. Furthermore, the control inputs are based on local signals. The effectiveness of the controls is demonstrated for model power systems.

Keywords

Analytical models; Control systems; Damping; Power capacitors; Power system dynamics; Power system modeling; Power system stability; Reactive power; Robust control; Thyristors; POD; Power swings; SVC; TCSC; control strategy; energy function; interaction; local variables;

fLanguage

English

Journal_Title

Power Engineering Review, IEEE

Publisher

ieee

ISSN

0272-1724

Type

jour

DOI

10.1109/MPER.2001.4311499

Filename

4311499