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Modelling and Simulation of Static Var Compensator (SVC) in Power System Studies by MATLAB

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Author(s): Houari BOUDJELLA | Fatima Zohra GHERBI | Fatiha LAKDJA

Journal: Annals of Dunarea de Jos
ISSN 1221-454X

Volume: 31;
Issue: 1;
Start page: 76;
Date: 2008;
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Keywords: FACTS | SVC | Var and Voltage Control

ABSTRACT
This paper presents the modelling and simulation of Static Var Compensator (SVC) in power system studies by MATLAB. In the first step, we have modeled mathematically with MathCAD how to analyze the rating of SVC (Boudjella, 2008). In second step, we have conferred modelling of SVC in power system to analyze its behaviour operating with in control range and outside of control range and how to perform power system studies which is anchored with load flow analysis for SVC realization. In the third step, we have been modelling separately the SVC transfer functions with open control loop in the respective control elements: measuring module, thyristor susceptance control module and voltage regulator module, and we have used lag/led compensators theories to configure open and close loop transfer function with respective gain/phase margin. At the final step, we have controlled the voltage and the reactive power transit in the power system, by SVC device.
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