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http://dx.doi.org/10.5207/JIEIE.2002.16.6.040

GA based Selection Method of Weighting Matrices in LQ Controller for SVC  

허동렬 (동아대 정보기술연구소)
이정필 (동아대 정보기술연구소)
주석민 (창원대 메카트로닉스 공학부)
정형환 (동아대 공대 전기전자컴퓨터공학부)
Publication Information
Journal of the Korean Institute of Illuminating and Electrical Installation Engineers / v.16, no.6, 2002 , pp. 40-50 More about this Journal
Abstract
In this paper, we present a GA(Genetic Algorithm) approach to select weighting matrices of an optimal LQ(Linear Quadratic) controller for SVC(Static VAR Compensator). A SVC, one of the FACTS(Flexible AC Transmission System), constructed by a FC(Fixed Capacitor) and a TCR(Thyristor Controlled Reactor), was designed and implemented to improve the damping of a synchronous generator, as well as to control the system voltage Also, a design of LQ controller depends on choosing weighting matrices. The selection of weighting matrices which is not a trivial solution is usually carried out by trial and error. We proposed an efficient method using GA of finding weighting matrices for optimal control law. Thus, we proved the usefulness of proposed method to improve the stability of single machine-infinite bus with SVC system by eigenvalues analysis and simulation.
Keywords
Weighting Matrices; Linear Quadratic(LQ) Controller; Genetic Algorithm(GA); Static VAR Compensator(SVC);
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