Design & Analysis of Current Controller for SPV Grid Connected System through Hysteresis CCT

The electrical distribution system throughout the world is based on AC system however some variations in the distribution voltage such as some countries follow 120V and some follows 230V system. So the photovoltaic modules need to be connected with the distribution system with some inverter technology. The prime work of the inverter is to load the photovoltaic module with its maximum capacity so that maximum photo generated current can be extracted, and thereby injecting sinusoidal current into the grid to which it is connected. Among different types of Current Controller Techniques such as Linear & Non-Linear Current Control Technique, the Non-Linear Current Control Techniques plays a very vital role in the Inverter Topology. This paper presents a Non-linear current controller technique based on the Hysteresis Current Controller for connection of SPV to the Grid. A MATLAB simulink model was designed to investigate the properties of controller and its response to the grid connected system.