Hysteresis Current and SPWM Based Power Sharing Mechanism for Photo Voltaic Micro Grid System

Microgrid is the small grid which consists of the large number of micro sources. These micro sources are the source of energy mainly the renewable energy sources. The main purpose of this project is to connect the microgrid with the main utility grid. The microgrid is connected with the utility grid in parallel. The MG will work in two modes of operation which are the grid connected mode and the Islanding mode. In grid connected mode the Micro grid will work in power control mode whereas during islanding mode the microgrid will work in droop control mode. The behavior of micro grid is analyzed under different loading conditions like with equal loading and the unequal loading. In this paper the micro grid will work in synchronism with the utility grid. The power supplied to the loads is via main utility grid as well as by microgrid as per the demand of the loads. If the load increases than the extra power is supplied by the main grid. When the intentional islanding takes place or due to any other power quality issues than the micro sources have to generate extra power to fulfil the demand of the local loads all these conditions are analyzed and shown with the help of MATLAB on simulink.