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Publication Title | United States Reissued Patent PatentNumber: US RE40,713 E Geiseta]. DateofReissuedPatent: May 19,2009 TURBOGENERATOR/MOTOR CONTROLLER

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Search Completed | Title | United States Reissued Patent PatentNumber: US RE40,713 E Geiseta]. DateofReissuedPatent: May 19,2009 TURBOGENERATOR/MOTOR CONTROLLER
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Text | United States Reissued Patent PatentNumber: US RE40,713 E Geiseta]. DateofReissuedPatent: May 19,2009 TURBOGENERATOR/MOTOR CONTROLLER | 001



(19)United States

(12)Reissued Patent (10)PatentNumber: US RE40,713 E Geiseta]. (45)DateofReissuedPatent: May 19,2009

(54) TURBOGENERATOR/MOTOR CONTROLLER

(75) Inventors: EverettR.Geis,Orange,CA (US); BrianW. Peticolas,RedondoBeach,CA

(Us)

(73) Assignee: CapstoneTurbineCorporation, ChatsWorth,CA (US)

(21) Appl.No.:09/s53,s52

JP 6-108879

W0 WO 94/27359

W0 WO 98/25014

W0 WO 99/32762 W0 WO 99/52193 W0 WO 00/28191

4/1994 11/1994 6/1998

7/1999 10/1999 5/2000

(22) Filed:

May11,2001

OTHERPUBLICATIONS

JapanesePatentApplicationAbstractentitled“Turbogenera tor/Motor Control System”; ?led May 13, 1999, Japanese SerialNo. 133003/1999.

Japanese Patent Application Abstract entitled “Command and Control System and Method for Multiple Turbogenera

Reissue of:

(64) PatentNo.:

5,903,116

tor/Motor Controller”, ?led Aug. 4, 1998, Japanese Serial No. 220231/1998.

(Continued)

Primary ExamineriKaren Masih (74)Attorney,Agent,orFirmiwaddey& Patterson,P.C.; LucianWayne Beavers

(57) ABSTRACT

A turbogenerator/motor controller With a microprocessor based inverter having multiple modes of operation. To start the turbine, the inverter [connects to and] supplies ?xed current,variablevoltage,variablefrequency,AC poWerto the permanent magnet turbogenerator/motor, driving the permanent magnet turbogenerator/motor as a motor to accel eratethegasturbine.Duringthisacceleration,sparkandfuel are introduced in the correct sequence, and self-sustaining gas turbine operating conditions are reached. The inverter is then [disconnected from the permanent magnet generator/ motor,] recon?gured to a controlled 60 hertz mode, and then either supplies regulated 60 hertz three phase voltage to a stand alone load or phase locks to the utility, or to other like controllers, to operate as a supplement to the utility. In this mode ofoperation,thepoWerfortheinverterisderivedfrom the permanent magnet generator/motor via high frequency recti?er bridges. The microprocessor monitors turbine con ditionsandcontrolsfuelHow tothegasturbinecombustor.

Filed:

(51) Int.Cl. H02P 7/00

(52) (58)

(56)

US. Cl. ..318/140; 318/145; 318/147; 318/375

FieldofClassi?cationSearch ..322/58, 322/10;290/52,7;318/140,145,147,375

Seeapplication?leforcompletesearchhistory.

References Cited U.S.PATENT DOCUMENTS

2,864,244 A 3,124,924 A

12/1958 Prachar

3/1964 Smith

3/1964 Rothfuss et a1. .............. 464/99

3,124,942

A *

RelatedUS. PatentDocuments tors”,?ledOct.27,1999,JapaneseSerialNo.305375/1999. JapanesePatentApplicationAbstractentitled“Turbogenera

Issued:

Appl.No.: 08/924,966

May 11,1999 Sep.8,1997

(2006.01)

(Continued) FOREIGN PATENT DOCUMENTS

DE 3634328 DE 19704662 EP 0 472 294 EP 0 679 800 EP 0 837 231 EP 0901218

4/1987 8/1998 2/1992 4/1995 4/1998 3/1999

44 Claims, 3 Drawing Sheets

WER

SUPPLY DRIVES

CONTROL LOGIC

54

2S nscrlnsn

48/

USO0RE40713E

Image | United States Reissued Patent PatentNumber: US RE40,713 E Geiseta]. DateofReissuedPatent: May 19,2009 TURBOGENERATOR/MOTOR CONTROLLER



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