This paper contains the design of a three stage solar battery charge controller and a comparative study of this charge control technique with three conventional solar battery charge control techniques such as 1. Constant Current (CC) charging, 2. Two stage constant current constant voltage (CC-CV) charging technique. The analysis and the comparative study of the aforesaid charging techniques are done in MATLAB/SIMULINK environment. Here the practical data used to simulate the charge control algorithms are based on a 12Volts 7Ah Sealed lead acid battery.

PV panel, DC-DC buck converter, Lead acid battery, Constant Current (CC) charging, Two stage Constant Current Constant Voltage (CC-CV) charging, Three stage charging.

Ankur Bhattacharjee.Design and Comparative Study of Three Photovoltaic Battery Charge Control Algorithms in MATLAB/SIMULINK Environment. International Journal of Advanced Computer Research. 2012;2(5):129-137.