Design, Control and Implementation of Interleaved Buck-Boost Converter for Electric Vehicle with Fuel Cell System

This paper deals with the hybrid fuel cell system connected with energy storage system (ESS). The hybrid-structured two-phase interleaved buck-boost converter is composed of a controller that is robust to input voltage fluctuations. In addition, the output voltage can be stably maintained through high-speed PWM switching control. This paper describes the system configuration, design, operating principle and specifications in detail. The proposed system was verified through the configuration and experimental results of the ethanol power generation fuel cell system.