Title :
Soft-switching techniques for PWM three-level converters
Author :
Ruan, Xinbo ; Yan, Yangguang
Author_Institution :
303 Teaching & Res. Div., Nanjing Univ. of Aeronaut. & Astronaut., China
Abstract :
This paper proposes a family of modulation strategies including nine modulation strategies for PWM three-level converters. The modulation strategies can be classified into two kinds according to the turn-off sequence of the two power switches of the switches pair. The concept of the leading switches and the lagging switches is introduced to realize soft-switching for PWM three-level converters. The realization of soft-switching for both the leading switches and the lagging switches is proposed, based on which, soft-switching techniques for PWM three-level converters can be classified into two kinds: zero-voltage-switching (ZVS) and zero-voltage and zero-current-switching (ZVZCS). The modulation strategies and topologies for the two kinds of soft-switching PWM three-level converters are proposed
Keywords :
DC-DC power convertors; PWM power convertors; network topology; power semiconductor switches; switching circuits; DC/DC power conversion; PWM three-level power converters; lagging switches; leading switches; modulation strategies; power switches; soft-switching techniques; turn-off sequence; zero-current-switching; zero-voltage-switching; Circuit topology; Education; IEEE members; Power electronics; Pulse width modulation; Pulse width modulation converters; Switches; Switching converters; Zero current switching; Zero voltage switching;
Conference_Titel :
Power Electronics and Motion Control Conference, 2000. Proceedings. IPEMC 2000. The Third International
Conference_Location :
Beijing
Print_ISBN :
7-80003-464-X
DOI :
10.1109/IPEMC.2000.885440
