A Multifunctional Onboard Power Electronic Converter for Electric Vehicle

The paper presents a novel method of vehicle charging which is specifically an onboard charging system. In conventional mode of charging the complexity of the converter circuit is very high and thereby which the cost and the design of such a system is a hectic task. But as a mere solution to this problem this paper has come up with an idea of using a Single Ended Primary Inductor (SEPIC) converter for power conversion rather than using separate set of converter for each mode of the operation. In addition to that we are harnessing two main sources viz. solar power and the power which is fed from the grid i.e., ac mains. These two sources represent two modes which comes along with two other modes namely running mode and regenerative mode. When the vehicle is idle such that it is parked somewhere we could utilize the solar power to charge the battery, while the battery could also be charged from the grid power by plugging in. The regenerative power from the vehicle can also be utilized to recharge the energy storage mechanism. The discharge of the battery occurs in the running mode.