Delta connected resonant snubber circuit
Abstract
A delta connected, 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 dc supply voltage through the main inverter switches and the auxiliary 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.
- Inventors:
-
- Knoxville, TN
- Oak Ridge, TN
- (Oak Ridge, TN)
- (Knoxville, TN)
- Issue Date:
- Research Org.:
- Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
- OSTI Identifier:
- 871337
- Patent Number(s):
- 5710698
- Assignee:
- Lockheed Martin Energy Systems, Inc. (Oak Ridge, TN)
- Patent Classifications (CPCs):
-
H - ELECTRICITY H02 - GENERATION H02M - APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS
H - ELECTRICITY H03 - BASIC ELECTRONIC CIRCUITRY H03K - PULSE TECHNIQUE
- DOE Contract Number:
- AC05-84OR21400
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- delta; connected; resonant; snubber; circuit; snubber-based; soft; switching; inverter; achieves; lossless; dc-to-ac; power; conversion; conditioning; minimum; component; count; size; current; supplied; branches; solely; dc; supply; voltage; main; switches; auxiliary; reduced; single; semiconductor; switch; maximizing; stray; capacitances; parallel; capacitors; resonance; charging; discharging; allows; zero; embodiment; minimized; achieving; three-phase; resonant snubber; supply voltage; component count; voltage switching; power conditioning; circuit component; zero voltage; power conversion; semiconductor switch; snubber circuit; resonant capacitors; soft switching; parallel resonant; circuit achieves; minimum component; dc supply; delta connected; voltage switch; lossless switching; achieves lossless; dc-to-ac power; inverter circuit; /363/
Citation Formats
Lai, Jih-Sheng, Peng, Fang Zheng, Young, Sr., Robert W., and Ott, Jr., George W. Delta connected resonant snubber circuit. United States: N. p., 1998.
Web.
Lai, Jih-Sheng, Peng, Fang Zheng, Young, Sr., Robert W., & Ott, Jr., George W. Delta connected resonant snubber circuit. United States.
Lai, Jih-Sheng, Peng, Fang Zheng, Young, Sr., Robert W., and Ott, Jr., George W. Tue .
"Delta connected resonant snubber circuit". United States. https://www.osti.gov/servlets/purl/871337.
@article{osti_871337,
title = {Delta connected resonant snubber circuit},
author = {Lai, Jih-Sheng and Peng, Fang Zheng and Young, Sr., Robert W. and Ott, Jr., George W.},
abstractNote = {A delta connected, 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 dc supply voltage through the main inverter switches and the auxiliary 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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Jan 20 00:00:00 EST 1998},
month = {Tue Jan 20 00:00:00 EST 1998}
}
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Works referenced in this record:
The resonant DC link converter-a new concept in static power conversion
journal, January 1989
- Divan, D. M.
- IEEE Transactions on Industry Applications, Vol. 25, Issue 2
Resonant snubbers with auxiliary switches
journal, January 1993
- McMurray, W.
- IEEE Transactions on Industry Applications, Vol. 29, Issue 2
A rugged soft commutated PWM inverter for AC drives
journal, April 1992
- Cheriti, A.; Al-Haddad, K.; Dessaint, L. A.
- IEEE Transactions on Power Electronics, Vol. 7, Issue 2