Modelling and Simulation of DC-DC Converters for PEM Fuel Cell Electric Vehicles

This paper presents a comparative analysis of two step-up DC-DC converters, the interleaved boost converter and self-lift SEPIC converter, for Fuel Cell Electric Vehicles (FCEVs). The study explores key components, specifications and topologies of the converters. The fuel cell is regulated using a fuel flow regulator, while Maximum Power Point Tracking (MPPT) controls the DC-DC converters, supplying PWM pulses. The converters step-up DC voltage for the three-phase inverter linked to a Hall effect sensor-controlled BLDC motor. MATLAB Simulink simulations assess the converters’ and motor’s performance. The findings aim to improve power conversion and motor control in FCEVs, enhancing overall efficiency and encouraging sustainable transportation integration.