This paper develops a multi-port isolated converter system designed for electric vehicle (EV) charging with an integrated solar photovoltaic (PV) system, battery storage system, and electric grid. For the integration and control of different power sources, a power management system is developed as centralized controller to select sources that will supply power at any instant, depending on load and grid conditions. The power management strategy provides suitable references to controllers of different power converters in multi-port converter for smooth operation. The controller design of different converters for closed loop operation is also developed in this paper. The simulation result validates the operation of the multi-port converter system developed for EV charging application.