DESIGIN AND HARDWARE IMPLEMENTATION OF PI CONTROLLER WITH PERTURB AND OBSERVE ALGORITHM FOR ENHANCEMENT OF PERFORMANCE OF PHOTOVLTAIC SYSTEM

Abstract

This paper will present the work on the Photovoltaic system as it is major renewable energy source to produce electricity and battery as a source of storage. This thesis also provides the theoretical and experimental results of the photovoltaic system. The output voltage of a PV is not sufficient enough for better performance of any type of Load devices to enhance the output voltage MPPT is used which supplies the maximum power from the PV panel to the load with Boost Converter which increases the efficiency of PV panel by matching output power with input power are used. From MPPT techniques perturb and observe (P&O) algorithm is implemented which is simulated by using MATLAB SIMULINK. In this method PV peak power, output voltage  is properly improved and maximized, by using P&O algorithm with Proportional and integral gain by PI controller. As there is no consistency of load during night time and in case of overload or in bad weather conditions for this purpose integration of PV and battery source is used. For hardware implementation of PV panel with MPPT technique by boost converter and for P&O algorithm and PI controller Arduino microcontroller along with voltage and current sensors are used. The simulation and experimental results are compared and founded to be more efficient method to be used for maximum power for PV panel.