Design of a Secondary On Board Charger Based On Push Pull DC DC Converter Fed By a Standalone PV Station

In this paper, we propose a secondary high-power charger provided by a photovoltaic source with grid connection. The high-power charger is composed of Push-Pull DC-DC converter controlled by a constant voltage constant current algorithm based on PI control. The first stage is composed of a PV panel source, controlled by a fuzzy logic using a MPPT algorithm, associated with a synchronous boost converter to set up the voltage at the standard common 400V bus level. While the charger is a second stage composed by a push-pull dc-dc converter for step down and adapting the voltage and the charging current for the battery of the urban electric car. Thus, to achieve this goal, a simulation results of the proposed configuration control techniques by using MATLAB/Simulink environment, are presented and discussed at the end of this paper.