A Versatile Non-Isolated Multiport Converter for Efficient Integration of Solar PV, Battery and Ultracapacitor in Electric Vehicles.

Abstract

The DC-DC converter crucial in modern power electronic systems. They are extensively used in renewable energy integration, hybrid electric vehicles (HEVs) and portable electronic devices. For the electric vehicles (EVs) with a hybrid energy storage system (HESS) that includes both battery and ultracapacitor (UC) efficient power management is the key feature for improving system performance, reliability, and the lifespan of the storage units. This paper mainly focusses on improving how energy is managed in electric vehicles (EVs) by the help of hybrid energy storage system (HESS) that includes-ultra capacitor, solar photovoltaic (PV) and battery input. Hear to control the flow of power which from the sources to EV load, I design a versatile non isolated multiport converter for integration of solar PV, battery and ultracapacitor and getting a single output. This paper suggests a non-isolated multi-input, single-output multiport converter design. This architecture aims to offer flexibility in the power flow while adjusting to the changing load demands of EVs. The DC-DC converter manages varying power demands by selecting the most appropriate energy source and channeling power through the proper paths depending on whether high or low current are required. It also supports bidirectional power transfer, enabling sources in both directions. Moreover, the converter allows single- stage power conversion, thereby improving the overall efficiency of the system.