Title :
A novel family of ZCS-PWM converters minimizing additional conduction loss
Author :
Qin, Ling ; Wang, Yafang ; Gu, Juping ; Xu, Huiling
Author_Institution :
Sch. of Electr. Eng., Nantong Univ., Nantong
Abstract :
This paper proposes a novel Zero-Current-Switching (ZCS) Pulsewidth Modulation (PWM) switch cell, featuring ZCS of all switches and zero-voltage -switching (ZVS) of all diodes at entire load range.The additional current stress and the conduction loss of the main switch and diodes are minimized. Based on the presented ZCS-PWM switch cell, a novel family of ZCS-PWM converters is derived, which is suitable for the high-power applications employing insulated gate bipolar transistors (IGBTs). Among the new family of ZCS-PWM converters, a buck converter has been analyzed in detail as an example. The validity of the proposed ZCS technique has been verified by the experiment results from the 1 kW protype operating at 50 kHz.
Keywords :
PWM power convertors; insulated gate bipolar transistors; zero current switching; IGBT; ZCS-PWM converters; conduction loss; insulated gate bipolar transistors; switch cell; zero-current-switching pulsewidth modulation; zero-voltage -switching; Buck converters; Diodes; Insulated gate bipolar transistors; Pulse width modulation; Space vector pulse width modulation; Stress; Switches; Switching converters; Zero current switching; Zero voltage switching;
Conference_Titel :
Electrical Machines and Systems, 2008. ICEMS 2008. International Conference on
Conference_Location :
Wuhan
Print_ISBN :
978-1-4244-3826-6
Electronic_ISBN :
978-7-5062-9221-4
