Design and testing of PV maximum power tracking system with MATLAB simulation

This paper presents the determination of unknown parameters from the given parameters of a solar panel data sheet by using the iterative method i.e. Newton-Raphson method. The values obtained from the above are used to calculate the voltage-current and voltage-power characteristics of a solar panel at different radiation and temperature conditions. The maximum power point tracking (MPPT) operation and control is developed. The Matlab/simulink set-up of PV-module gives power and the power output of module is fed to the load through a dc-dc boost converter to track the maximum power output. The Matlab/simulink arrangement of Incremental conductance algorithm is responsible for driving the dc-dc boost converter to track maximum power point (MPP). In this paper the MPP tracking is made for 1) A battery charging of 24 volts with varying radiation and temperature conditions. 2) A battery charging along with a dc load of 10 watts at standard temperature and radiation conditions (STC). 3) A battery discharging along with a dc load of 40 watts at standard radiation and temperature conditions (STC).