Fuzzy Controlled DSTATCOM for Voltage Sag Compensation and DC-Link Voltage Improvement
نویسنده
چکیده
In this paper we propose fuzzy control of DC-link capacitor voltage of three-phase four-wire DSTATCOM for power quality improvement in distribution network. It is designed to compensate reactive power and to eliminate harmonic currents. DSTATCOM regulates the voltage at the point of common coupling (PCC) by injecting reactive power to the PCC. During load changes there is considerable variation in DC capacitor voltage. In this work a fuzzy logic based controller is proposed to improve the transient performance of the DC-link voltage. The validity and effectiveness of the control strategy has been verified by theoretical analysis and MATLAB simulation.
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