Isolated and soft-switched power converter
Abstract
An isolated and soft-switched power converter is used for DC/DC and DC/DC/AC power conversion. The power converter includes two resonant tank circuits coupled back-to-back through an isolation transformer. Each resonant tank circuit includes a pair of resonant capacitors connected in series as a resonant leg, a pair of tank capacitors connected in series as a tank leg, and a pair of switching devices with anti-parallel clamping diodes coupled in series as resonant switches and clamping devices for the resonant leg. The power converter is well suited for DC/DC and DC/DC/AC power conversion applications in which high-voltage isolation, DC to DC voltage boost, bidirectional power flow, and a minimal number of conventional switching components are important design objectives. For example, the power converter is especially well suited to electric vehicle applications and load-side electric generation and storage systems, and other applications in which these objectives are important. The power converter may be used for many different applications, including electric vehicles, hybrid combustion/electric vehicles, fuel-cell powered vehicles with low-voltage starting, remote power sources utilizing low-voltage DC power sources, such as photovoltaics and others, electric power backup systems, and load-side electric storage and generation systems.
- Inventors:
-
- Knoxville, TN
- Issue Date:
- Research Org.:
- Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
- OSTI Identifier:
- 874341
- Patent Number(s):
- 6370050
- Assignee:
- UT-Batelle, LLC (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
Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE Y02E - REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- DOE Contract Number:
- AC05-96OR22464
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- isolated; soft-switched; power; converter; dcdc; dcdcac; conversion; resonant; tank; circuits; coupled; back-to-back; isolation; transformer; circuit; pair; capacitors; connected; series; leg; switching; devices; anti-parallel; clamping; diodes; switches; suited; applications; high-voltage; dc; voltage; boost; bidirectional; flow; minimal; conventional; components; design; objectives; example; especially; electric; vehicle; load-side; generation; storage; systems; including; vehicles; hybrid; combustionelectric; fuel-cell; powered; low-voltage; starting; remote; sources; utilizing; photovoltaics; backup; power source; switching device; tank circuit; power converter; /363/
Citation Formats
Peng, Fang Zheng, and Adams, Donald Joe. Isolated and soft-switched power converter. United States: N. p., 2002.
Web.
Peng, Fang Zheng, & Adams, Donald Joe. Isolated and soft-switched power converter. United States.
Peng, Fang Zheng, and Adams, Donald Joe. Tue .
"Isolated and soft-switched power converter". United States. https://www.osti.gov/servlets/purl/874341.
@article{osti_874341,
title = {Isolated and soft-switched power converter},
author = {Peng, Fang Zheng and Adams, Donald Joe},
abstractNote = {An isolated and soft-switched power converter is used for DC/DC and DC/DC/AC power conversion. The power converter includes two resonant tank circuits coupled back-to-back through an isolation transformer. Each resonant tank circuit includes a pair of resonant capacitors connected in series as a resonant leg, a pair of tank capacitors connected in series as a tank leg, and a pair of switching devices with anti-parallel clamping diodes coupled in series as resonant switches and clamping devices for the resonant leg. The power converter is well suited for DC/DC and DC/DC/AC power conversion applications in which high-voltage isolation, DC to DC voltage boost, bidirectional power flow, and a minimal number of conventional switching components are important design objectives. For example, the power converter is especially well suited to electric vehicle applications and load-side electric generation and storage systems, and other applications in which these objectives are important. The power converter may be used for many different applications, including electric vehicles, hybrid combustion/electric vehicles, fuel-cell powered vehicles with low-voltage starting, remote power sources utilizing low-voltage DC power sources, such as photovoltaics and others, electric power backup systems, and load-side electric storage and generation systems.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Jan 01 00:00:00 EST 2002},
month = {Tue Jan 01 00:00:00 EST 2002}
}
Works referenced in this record:
The auxiliary quasi-resonant DC link inverter
conference, January 1991
- De Doncker, R. W.; Lyons, J. P.
- PESC '91 Record 22nd Annual IEEE Power Electronics Specialists Conference
A three-phase soft-switched high-power-density DC/DC converter for high-power applications
journal, January 1991
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- IEEE Transactions on Industry Applications, Vol. 27, Issue 1
A novel control principle of bi-directional DC-DC power conversion
conference, January 1997
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- PESC97. Record 28th Annual IEEE Power Electronics Specialists Conference. Formerly Power Conditioning Specialists Conference 1970-71. Power Processing and Electronic Specialists Conference 1972
Bi-directional DC to DC converters for fuel cell systems
conference, January 1998
- Wang, K.; Lin, C. Y.; Zhu, L.
- 1998 Workshop on Power Electronics in Transportation, Power Electronics in Transportation (Cat. No.98TH8349)