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Publication Title | Ulllted States Patent Trimble et al. SYSTEMS AND METHODS FOR BOOSTING DC LINK VOLTAGE IN TURBINE GENERATORS

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(12>Ulllted States Patent Trimble et al.

(54) SYSTEMS AND METHODS FOR BOOSTING DC LINK VOLTAGE IN TURBINE GENERATORS

(75) Inventors: DanielTrimble,LosAngeles,CA(US); Robert McConnell, Rancho Palos

Verdes, CA (US)

(73) Assignee: HybridPowerGenerationSystems LLC, Los Angeles, CA (US)

(16)PatentN6.= (45) Date of Patent:

US 6,631,080B2 Oct. 7, 2003

(*) Notice:

Subjecttoanydisclaimer,thetermofthis patent is extended or adjusted under 35 USC 154(k))by0days_

Wang, K., Dissertation “High—Frequency Quasi—Single— Stage (QSS) IsolatedAC—DC and DC—AC Power Conver sion,”SchoolofElectricalEngineering, VirginiaPolytech nicInstituteandStateUniversity,Blacksburg,VA (Nov. 16, 1998).

PrimaryExaminer—AdolfD.Berhane

(74)Attorney, Agent, or Firm—Suther1and Asbill &

Brennan LLP

(57) ABSTRACT

The present invention is directed to an active converter systemforapermanentmagneticturbogenerator.A system in accordance with an embodiment of the present invention

includes a DC voltage link and a ?rst active converter including a Connection for inputting or outputting a three_

phaseAC Voltagetoorfrom,respectively,anAC Voltage source, another connection for inputting or outputting a DC voltagefromortosaidDC voltagelink,andatleastsiX

selectivelyswitchable?rstIGBTs,whereinselectiveswitch

ingofthe?rst'IGBTsresultsinaboostedDC voltage.The system further includes a second act1ve converter including

a connection for inputting or outputting a three-phase AC voltage to or from, respectively, a permanent magnetic generator, another connection for inputting or outputting a

DC voltagetoorfromsaidDC voltagelink,andatleastsiX selectively switchable second IGBTs, wherein the second activeconverteriscapableofboostingsaidDC voltage.

(21) Appl.NO.Z09/876,271 (22) Filed: Jun.6,2001

(65)

Prior Publication Data

US 2003/0048651 A1 Maf- 13, 2003

(51) Int C17

. . ................................................ '

(56)

EP EP

363/34’ 123; 318/140’ 145’ 801’ 811; 290/32’ 52

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470077407 A 2/1977 Kranert

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FOREIGN PATENT DOCUMENTS

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EP

JP 7298516 11/1995 JP 9051638 2/1997

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WO 97/09524 3/1997 WO 98/25014 12/1997

OTHER PUBLICATIONS

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US006631080B2

0901218 A1

3/1999

Image | Ulllted States Patent Trimble et al. SYSTEMS AND METHODS FOR BOOSTING DC LINK VOLTAGE IN TURBINE GENERATORS



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