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Hysteresis Current Controller for a micro-grid application

Researches related to non-conventional energy sources have grown significantly in the present scenario. The electrical energy from the PV panel is considered as one of the most useful natural resources. This paper deals with the operation and control of a grid connected PV system with a nonlinear load. A utility grid connection is provided in order to replenish energy levels in case of power shortage from the renewable energy sources. Hysteresis Current Controller is employed for the inverter control. The proposed inverter control technique interfaces renewable energy sources and the AC bus of micro grid. It offers the possibility to inject power from the renewable sources and also improves the power quality in the same micro grid. Simulation results show the effectiveness of the proposed inverter control technique in improving the power quality of the system.