POWER QUALITY IMPROVEMENT IN WIND ENERGY SYSTEM USING HEX-STATCOM

Abstract

This paper work concentrates on enhancing the power quality in Wind Energy System (WES) using 3-Phase, Hexagram-Static VAR Compensator (HEX-SC). In this surroundings, the Permanent Magnet Synchronous Generator (PMSG) based 3 kW wind energy system is considered to implement HEX-SC. The main objective of this HEX-SC is to improve the power quality in the proposed system, when WES output changes with the wind speed and also to the variation in load. Furthermore, it decreases the power loss during low wind velocity and also due to the presence of Total Harmonic Distortions (THD) with enhanced power factor. In this research work, the proposed system performance parameters namely, output voltage; frequency and total harmonic distortion levels are examined for various wind velocities and unbalanced load conditions. In addition, the excellence of HEX-SC is analyzed with Space Vector Pulse Width Modulation techniques (SVPWM). The simulation result of the proposed system is evaluated using Matlab/Simulink software tool. The simulation results are compared with existing systems and validated the parameters of the HEX-SC converter.