Title :
Fuel-cell based on-board system with different switching frequencies of modulated inverters
Author :
Griva, G. ; Oleschuk, V.
Author_Institution :
Dept. of Electr. Eng., Politec. di Torino, Turin, Italy
Abstract :
The paper presents results of analysis of operation of dual three-phase (six-phase) aeromobile traction drive on the base of two three-phase inverters, supplied by two isolated DC sources with different voltages (Fuel Cells + Battery). A novel control strategy for this drive topology is based on variation of switching frequencies of each inverter depending on the magnitudes of voltages of the corresponding DC sources. Basic schemes of synchronized pulsewidth modulation (PWM), applied for control of voltage source inverters with different switching frequencies, allow continuous voltage synchronization in the system and improved spectral composition of the phase voltages.
Keywords :
AC motor drives; PWM invertors; aircraft power systems; fuel cells; traction; AC motor drives; control strategy; fuel-cell based on-board system; modulated inverters; pulsewidth modulation schemes; three-phase aeromobile traction drives; voltage source inverters; Batteries; Continuous phase modulation; Frequency modulation; Frequency synchronization; Fuel cells; Pulse inverters; Pulse width modulation inverters; Switching frequency; Topology; Voltage control; AC motor drives; aeromobile electric propulsion; pulse width modulation; spectral analysis;
Conference_Titel :
Clean Electrical Power, 2009 International Conference on
Conference_Location :
Capri
Print_ISBN :
978-1-4244-2543-3
Electronic_ISBN :
978-1-4244-2544-0
DOI :
10.1109/ICCEP.2009.5212031
