Abstract
The ever mounting demand of electrical energy and the keen scarcity of conventional energy sources leads to the burgeon of distributed generation (DG) system. The main abstruse is the harmonization of the DG to the utility grid. Generally current regulated PWM voltage-source inverters (VSI) are used for synchronizing the utility grid with DG source in order to meet the following objectives: 1) To ensure grid stability 2) active and reactive power control through voltage and frequency control 3) power quality improvement (i.e. harmonic elimination) etc. In this paper, fuzzy with hysteresis controller is proposed to enhance the power quality by diminishing current error at higher band width. The studied system is modeled and simulated in the MATLAB/Simulink environment and the results obtained are compared with conventional hysteresis controller.
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