FPGA Based Battery Energy Storage System Using Solar Cells

This work implements a FPGA based battery energy system using solar cells under various illumination and temperature. It performs Maximum Power Point Tracking based on perturbation and observation method, where it gets the desired maximum power by changing the duty cycle of the switch in the converter. The control algorithm is simple and easy to implement. The algorithm is implemented with the help of FPGA controller which controls the duty cycle by outputting PWM pulse based on the voltage and current from the solar panel. The generated power from the solar cells using the converter is stored in the lead-acid battery to supply the load.