Hysteresis Current Control Based Grid Connected Pv System

This paper present a control strategy for the operation of solar energy generation integrated with grid. Boost converter is used to achieve maximum power extraction from the available solar power. The buck converter and bi-directional converter connected with common dc bus, that dc bus connected different loads with constant dc voltage. The hysteresis current controller has implemented in inverter to control the real power with bidirectional power flow capability, which is integrated to grid. The proposed control strategy improves the performance of the photovoltaic system for a wide range of variation in solar irradiance condition with reduces the complexity of a controller. Thus the system achieves higher reliability and better regulation, especially in poor environmental condition. Performance of the complete proposed system under different environmental condition with different load availability is verified through the MATLAB/SIMULINK simulation studies.