Tuning of SVC stabiliser to compensate the influence of voltage dependent loads

Author

Milanovic, Jovica V.

Author_Institution

Dept. of Electr. Eng. & Comput. Sci., Tasmania Univ., Hobart, Tas.

Volume

3

fYear

1997

fDate

10-12 Dec 1997

Firstpage

2553

Abstract

The paper explores the influence of power system loads on static VAr compensator (SVC) damping effectiveness. Equipped with properly tuned additional stabiliser SVCs have been successfully used for improving the damping of electromechanical oscillations in power system. The damping improvement is usually achieved through indirect voltage influence through voltage dependent loads. Tuning of additional compensator stabiliser (ACS) traditionally assumes that loads are statically voltage dependent. However load parameters are generally uncertain and loads often exhibit some dynamic response. This uncertain dynamic behaviour of loads can introduce an additional phase shift between voltage and load response and such can detune the ACS. Example of robust tuning of ACS to compensate influence of load dynamics and uncertainty is presented and discussed

Keywords

damping; load regulation; power system stability; static VAr compensators; tuning; ACS; SVC stabiliser tuning; additional compensator stabiliser; electromechanical oscillation damping; indirect voltage influence; load dynamic response; phase shift; power system loads; static VAr compensator damping effectiveness; uncertain dynamic behaviour; voltage dependent loads; Damping; Frequency; Power generation; Power system dynamics; Power system interconnection; Power systems; Rotors; Static VAr compensators; Tuning; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Decision and Control, 1997., Proceedings of the 36th IEEE Conference on

Conference_Location

San Diego, CA

ISSN

0191-2216

Print_ISBN

0-7803-4187-2

Type

conf

DOI

10.1109/CDC.1997.657730

Filename

657730