Renewable Energy Integrated Charging Stations – A move towards Ecological Vehicles

In current situation, where the supply of conventional resources is on deep reserve, encouraging the renewable energy based e-Mobility systems could be an attractive resolution. With such motivation, this paper proposed a constant DC current charging station which can power electric vehicle (EV) from both conventional and renewable sources. This power circuit integrates resonant convertor and DC-DC convertor in its design, which are two distinctive technologies in industrial applications. A novel π – structured (P2) resonant converter is investigated to provide constant current while a multi level high gain boost converter (HGBC) in closed loop operation controls the magnitude of charging current. Proposed resonant converter (RC) topology has a characteristic feature of drawing less peak current from source and chosen HGBC has two output ports with individual maximum gain of 2 and 50 respectively. This striking feature qualifies the converter for renewable penetration. The system is mathematically analyzed and designed to deliver 1A constant current. A Simulink model is developed to test and validate the system. It is noticed that proposed charger is able to deliver constant current of 1A to any value of load capacitance and is drawing 20% less peak current compared to conventional LCL RC topology.