Physical design and modelling of boost converter for maximum power point tracking in solar PV systems

Renewable energy is an alternative way that will hopefully lead us away from petroleum dependent energy sources. Among all renewable energy sources solar energy is the most acceptable solution as it is available in abundant and free of cost worldwide. A typical solar generation system consists of a solar array and a DC-DC converter. A DC-DC converter acts as an interface between the load and the PV module as it serves the purpose of transferring maximum power from the solar PV module to the load. To develop a photovoltaic (PV) power generation system with a suitable converter topology, it is imperative to analyze the converter. In this paper modeling and physical design of DC-DC boost converter is presented for solar PV system (TET-1210 made by Thrive Energy Technologies Pvt. Ltd.) and tested in SIMSCAPE library of MATLAB. The result shows that the designed converter can be implemented with any maximum power point tracking technique and gives the maximum power at 70.06% of duty cycle. The small signal analysis of boost converter is also given in this paper which is very helpful for the stability analysis.