Title :
A robust fixed-frequency soft switching series resonant converter for transportation applications
Author :
Safaee, Alireza ; Woronowicz, Konrad ; Jain, Praveen ; Bakhshai, Alireza
Author_Institution :
Bombardier Transp. Inc., Kingston, ON, Canada
Abstract :
Frequency modulation is often used in series resonant converters to gain output voltage regulation. Variable frequency however brings challenges for EMI filter and switch driver design and the desirable zero voltage switching cannot be maintained at light load conditions. This paper presents time-domain steady-state analysis of fixed-frequency series resonant converters with phase shift modulation. Three operation modes are identified and the mode boundaries are demonstrated. Based on this a passive robust auxiliary circuit is proposed to ensure the zero voltage switching of the converter in all three modes. The achievement of zero voltage switching is confirmed by experimental results.
Keywords :
resonant power convertors; switching convertors; transportation; zero voltage switching; EMI filter; fixed frequency soft switching; frequency modulation; passive robust auxiliary circuit; phase shift modulation; robust resonant converter; series resonant converter; switch driver design; time domain steady state analysis; transportation applications; voltage regulation; zero voltage switching; Capacitors; Inductors; Inverters; Switches; Voltage control; Zero current switching; Zero voltage switching; Series resonant converter; passive auxiliary circuit; phase shift modulation; zero voltage switching;
Conference_Titel :
Electric Vehicle Conference (IEVC), 2014 IEEE International
DOI :
10.1109/IEVC.2014.7056091
