Dual-Input Single-Output Non-Isolated DC-DC Converter for GIHEVs

Abstract

In most cases, battery-powered electric vehicles rely heavily on the available power system for their battery charging. This leads to excessive stress on the distribution network of the power system. From the name, grid-independent hybrid electric vehicles run independently by utilizing multiple renewable energy resources by forming hybrid energy systems. In this paper, a dual-input single-output (DISO) non-isolated dc-dc converter with high step-up voltage magnitude is presented for GIHEVs (grid-independent hybrid electric vehicles). Additionally, to improve the output voltage magnitude, voltage multiplier (VM) stages are used with help of diode-capacitor (D-C) combination. Because of this converter, GIHEVs benefit from a minimalist structure, fewer switches, light-weight, high gain, minimal voltage stress, and greater efficiency. To clarify the converter functioning, we stroll via the modelling of a 1000W dual-input single-output model and, also concentrate on the losses and efficiency computations. The fuel cell source of 36V and solar source of 48V is chosen to design the system of 1000W. We uphold the converter design and performance with MATLAB/Simulink model that validates the mathematical computations.