DocumentCode :
2423324
Title :
Analysis of a new soft switching PWM inverter
Author :
Luo, Ding ; Yan Yanguang
Author_Institution :
Nanjing Univ. of Aeronaut. & Astronaut., China
fYear :
1996
fDate :
23-25 Sept. 1996
Firstpage :
513
Lastpage :
518
Abstract :
The resonant DC link inverter is a zero voltage switching inverter. This paper proposes a new cascade resonant DC link inverter that consists of two power converter units, a rugged resonant DC link and an inverter bridge. A detailed analysis of the soft switching process in the rugged resonant DC link and the realization of pulse width modulation (PWM) control strategy in the inverter bridge are presented. The operation modes, the input and output features and the interface between the two power converter units are also discussed. The relation between characteristics and parameters of the circuit is deduced, which provides a theoretical basis for the circuit design. The analysis results show that the rugged resonant DC link can be open-loop controlled and that control of the rugged resonant DC link is independent of that of the inverter bridge, which makes inverter control easy and realizable. The inverter circuit is simulated with the electronics simulation software PSPICE. The simulation results of the circuit verify circuit analyses.
Keywords :
DC-AC power convertors; PWM invertors; SPICE; bridge circuits; circuit analysis computing; power engineering computing; resonant power convertors; software packages; switching circuits; PSPICE; PWM control strategy; PWM inverter; computer simulation; inverter bridge; open-loop control; operation modes; power converter units; resonant DC link inverter; rugged resonant DC link; soft switching; zero voltage switching;
fLanguage :
English
Publisher :
iet
Conference_Titel :
Power Electronics and Variable Speed Drives, 1996. Sixth International Conference on (Conf. Publ. No. 429)
ISSN :
0537-9989
Print_ISBN :
0-85296-665-2
Type :
conf
DOI :
10.1049/cp:19960967
Filename :
708408
Link To Document :
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