High Voltage Gain Switched Capacitor Boost Converter with ANFIS Controller for Fuel Cell Electric Vehicle Applications

Designing of a high voltage gain or high step-up boost converter is the major challenge in the high power applications. In this work, a high voltage gain Switched Capacitor Boost Converter (SCBC) is designed for fuel cell electric vehicle (FCEV) applications. The designed converter achieves the high voltage gain with low duty cycle and reduces the voltage stress across the power semiconductor switches. The converter output voltage is given to the Brushless DC (BLDC) motor through a DC link and a Voltage Source Inverter (VSI) for the propulsion of the vehicle. An adaptive neuro-fuzzy inference system (ANFIS) based MPPT technique is adopted for the fuel cell system for extracting the maximum power at different temperature conditions. The performance analysis of fuel cell electric vehicle system with SCBC is done by using the MATLAB/Simulink environment.

I. Introduction

From the past few years, fuel cells are becoming an alternative and attractive power source for electric vehicle applications because of their low noise, cleanness, high reliability and high efficiency [1] . Fuel cells are classified into different types based on the electrolyte material used [2] . Among all the available fuel cells, PEMFC is commonly used in electric vehicle applications because of its high energy density, low noise and no emissions [3] .