Design of an integrated fast battery charger controller on a FPGA board

This paper presents the implementation on a Field Programmable Gate Array (FPGA) of an integrated battery charger controller for Electrical Vehicle (EV) application. The control strategy is based on cascaded loops where the currents controllers of the inner loops are integrated on a FPGA and the voltage controller of the outer loop is implemented on a processor board. The aim is to take benefits from the two devices advantages. An advanced RST controller is used to control the sinusoidal currents. The FPGA simulation results are compared to Matlab/Simulink simulations.