Power electronic interface with ultracapacitors and motor control for a fuel cell electric vehicle

In this paper, the power electronic interface with ultra-capacitor hybridization for a fuel cell electric vehicle system is presented. The isolated DC/DC converter topologies for interface has been analyzed based on performance, cost, size, volume, component count and simplicity. Another feature of the topology is the use of ultra-capacitor bank and the reduction of battery pack size. The proposed approach consists of a full-bridge DC/DC converter to boost the fuel cell voltage. The induction motor operated with vector control is driven by a three-phase PWM inverter supplied by the DC-link voltage. The investigation of the electric vehicle performance due to parameter variation of the induction motor is also reported.