Title :
Transient characteristics of a fuel cell powered UAV propulsion system
Author :
Min Zhou ; Prasad, J.V.R.
Author_Institution :
Georgia Inst. of Technol., Atlanta, GA, USA
Abstract :
In this paper, the transient characteristics of a fuel cell powered UAV propulsion system are investigated through effective time constants and step command responses in the time domain. A fuel cell powered UAV model is obtained by modifying the Aerosonde UAV model with a fuel cell system and an electric motor. The influence of the model parameters on the transient response characteristics of a fuel cell powered UAV propulsion system is studied through parametric studies. In addition, the linearized longitudinal model of a fuel cell powered UAV is compared with that of a conventional gas powered configuration to illustrate the impact of the significant time delay associated with a fuel cell system.
Keywords :
aerospace propulsion; aircraft power systems; autonomous aerial vehicles; electric motors; fuel cell vehicles; time-domain analysis; transient response; aerosonde UAV; electric motor; fuel cell powered UAV propulsion system; linearized longitudinal model; step command response; time constants; time delay; time domain response; transient response characteristics; unmanned aerial vehicle; unmanned aircraft system; Aerodynamics; Electric motors; Fuel cells; Mathematical model; Propellers; Transient analysis;
Conference_Titel :
Unmanned Aircraft Systems (ICUAS), 2013 International Conference on
Conference_Location :
Atlanta, GA
Print_ISBN :
978-1-4799-0815-8
DOI :
10.1109/ICUAS.2013.6564680
