A novel approach to modeling and experimenting a solar-fed H6 configuration for battery swapping stations in rural and commercial areas using a dual phase CLLC DC–DC resonant converter

Abstract

In order to further the use of clean energy, the transition from internal combustion engine (ICE) vehicles to electric vehicles (EVs) was initiated globally. In the coming days, there will be a need for more EV charging stations in rural and commercial areas. The installation of new charging infrastructure for different vehicles with different voltage specifications in order to charge batteries are expensive with limited availability. Also fast charging is not possible in rural areas. To overcome this issue, the battery swapping station is a good option. In this paper, a new solar-powered dual-phase CLLC DC–DC resonant converter is proposed to test battery swapping. An equivalent circuit has been derived analytically, and the optimal design of the magnetic components for the proposed converter has been derived. Simulation has been carried out for the proposed system. The proposed system was tested with a prototype set-up of a 100 W lithium-ion battery bank of equal and unequal voltage levels in an open-loop condition using Analog Discovery-2. Introducing the H6 concept in the proposed converter has the features of low stress across switches, use of higher dc grid voltage, low switching losses due to the dual phase resonant compensation network, and a multi-port isolated output system. Apart from battery swapping applications it can be utilized for Energy Storage Solution [ESS].