FUZZY-PI CURRENT CONTROLLED D-STATCOM

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Gazi University Journal of Science
Volume:24 Issue:1
FUZZY-PI CURRENT CONTROLLED D-STATCOM

FUZZY-PI CURRENT CONTROLLED D-STATCOM

Authors : Resul COTELI, Besir DANDIL, Fikret ATA

Pages : 91-99

View : 48 | Download : 12

Publication Date : 2011-01-14

Article Type : Other Papers

Abstract :Voltage stability and reactive power compensation are one of the most important problems in power systems. Traditionally, fixed, mechanical switched reactor/capacitor banks and Static Var Compensator have been used for voltage stability and reactive power compensation. In recent years, applications of FACTS insert ignore into journalissuearticles values(Flexible Alternating Current Transmission Systems); devices have been growing up for reactive power compensation in transmission and distribution systems, since their response is faster than that of the conventional compensators. Distribution STATCOM insert ignore into journalissuearticles values(D-STATCOM); is a FACT device used to improve the power quality issues in distribution systems. Control of D-STATCOM is generally realized by PI controllers with fixed parameter. However, desired control performance couldn’t be obtained due to nonlinear structure of D-STATCOM. In this paper, Fuzzy-PI controller which has a nonlinear and robust structure is proposed control of D-STATCOM’s d and q-axis currents. Simulation of Fuzzy-PI current controlled D-STATCOM is performed by MATLAB/Simulink software. In simulation, dynamic response of D-STATCOM is observed by changing the reference reactive current. Simulation results compared with conventional PI controller are given.
Keywords : Reactive power compensation, FACTS, D STATCOM, Matlab, Fuzzy PI,

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