Electric power conversion systems – Current conversion – Including automatic or integral protection means
Patent
1994-09-30
1997-06-24
Wong, Peter S.
Electric power conversion systems
Current conversion
Including automatic or integral protection means
363 98, 363132, H02H 7122
Patent
active
056422733
ABSTRACT:
A resonant, snubber-based, soft switching, inverter circuit achieves lossless switching during dc-to-ac power conversion and power conditioning with minimum component count and size. Current is supplied to the resonant snubber branches solely by the main inverter switches. Component count and size are reduced by use of a single semiconductor switch in the resonant snubber branches. Component count is also reduced by maximizing the use of stray capacitances of the main switches as parallel resonant capacitors. Resonance charging and discharging of the parallel capacitances allows lossless, zero voltage switching. In one embodiment, circuit component size and count are minimized while achieving lossless, zero voltage switching within a three-phase inverter.
REFERENCES:
patent: 5410467 (1995-04-01), Smith et al.
patent: 5461302 (1995-10-01), Garcia et al.
patent: 5477131 (1995-12-01), Gegner
patent: 5486752 (1996-01-01), Hua et al.
"The Resonant DC Link Converter--A New Concept in Static Power Conversion," by D. M. Divan, Department of Electrical and Computer Engineering, University of Wisconsin, CH2272-3/86/0000-0648, .COPYRGT.1986 IEEE.
"A Rugged Soft Commutated PWM Inverter for AC Drives," by Ahmed Cheriti, et al, IEEE Log No. 9107102, 0885-8993 .COPYRGT. IEEE, 1992.
"Resonant Snubbers with Auxiliary Switches," by William McMurray, Fellow, IEEE, IEEE Log No. 9207141, 0093-9994 .COPYRGT.1993 IEEE.
Chen Daoshen
Lai Jih-Sheng
McKeever John W.
Ott, Jr. George W.
Scudiere Matthew B.
Han Y. J.
Martin Marietta Energy Systems Inc.
Neely Andrew S.
Wong Peter S.
LandOfFree
Resonant snubber inverter does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Resonant snubber inverter, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Resonant snubber inverter will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-152656