A Low Cost Fuel Cell Drive System for Electrical Vehicles
Min Dai, Ali Keyhani, Jin-Woo Jung, and A.B. Proca
Ohio State Univ., Columbus, OH, USA ;
This paper appeares in : Proceedings of the 2003 Global Powertrain Congress Conference and Exposition
Volume: 26
Page: 22-26
Date: Sept. 2003
Location: Ann Arbor, MI, USA
Abstract:
Fuel cell is promising to be the primary power source of a zero-emission vehicle. A fuel cell
drive system specially designed for electrical vehicles has been developed. The drive system
consists of a PEM fuel cell source, an auxiliary battery source, two DC/DC power converters,
and a DC/AC inverter. For the design and simulation, the system model has been developed,
including the dynamics of the fuel cell, battery, both DC/DC converters, the DC/AC inverter, and
the induction motor. For the induction motor model development, off-line estimation is applied
to obtain the motor parameters for qd-axis model. Control algorithms have been developed for
the system and a sliding-mode observer is used to obtain system states and achieve sensorless
control. Alternative estimation method is developed to implement low speed observation.
Discrete-time sliding mode control is used for the dual loop motor control structure. Simulation
and experimental results have been presented to demonstrate the effectiveness of the control for
the drive system.