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특허 상세정보

Synchronous generator having auxiliary power windings and variable frequency power source and method for use

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) H02P-009/08   
미국특허분류(USC) 290/052; 322/059
출원번호 US-0935733 (2001-08-24)
발명자 / 주소
출원인 / 주소
대리인 / 주소
    Nixon & Vanderhye P.C.
인용정보 피인용 횟수 : 27  인용 특허 : 11
초록

A synchronous generator is disclosed having main power windings and auxiliary power windings, where the auxiliary power winding is coupled to a variable frequency drive system. The variable frequency drive causes the generator to function as a motor and turn a drive shaft to start a gas turbine. Switching circuits are used to connect and disconnect the auxiliary windings of the generator with the variable frequency power supply.

대표
청구항

1. A method for starting a gas turbine using a polyphase electric power generator comprising the steps of: a. connecting a variable frequency power supply to auxiliary windings of the generator; b. applying current to the auxiliary windings of the generator to turn a drive shaft of the generator; c. rotating a gas turbine with the turning rotor of the generator to start the gas turbine, and d. once started, the gas turbine turns the generator to cause the generator to produce electric power from the main armature windings. 2. A method for startin...

이 특허에 인용된 특허 (11)

  1. Kikkawa Yoshitsugi (Kanagawa-ken JPX) Yamamoto Osamu (Kanagawa-ken JPX) Naito Yasuhiro (Kanagawa-ken JPX) Sakaguchi Junichi (Kanagawa-ken JPX). Compressor drive system for a natural gas liquefaction plant having an electric motor generator to feed excess power to. USP1997115689141.
  2. Gorden Dale I. (Pittsburgh PA) Petersen Sigrud R. (North Huntingdon PA). Dynamoelectric machines brushless supplemental excitation system. USP1982064336486.
  3. Torikai Takayuki,JPX ; Fujisawa Takashi,JPX ; Ishibashi Kazutoshi,JPX. Gas turbine power plant control for starting and stopping. USP1999105966925.
  4. Sinha Gautam ; Ryan Michael John ; Garces Luis Jose. Microturbine based power generation system and method. USP2001086281595.
  5. VanSchaick Thomas E. (Burnt Hills NY) Cotzas George M. (Schenectady NY). Potential source excitation system with voltage and current adjustment. USP1990034910421.
  6. Glennon Timonthy F.. Starting system for a prime mover. USP1999075930134.
  7. Butman, Jr., Thomas R.; Anderson, Jr., Frank E.; Anderson, James M.. Support for exciter winding bar. USP1983054385252.
  8. Fogarty James Michael ; Gott Brian Ernest Baxter ; Yagielski John Russell. Synchronous generator having auxiliary power windings and variable frequency power source. USP2001126333622.
  9. Giras Theodore C. (Pittsburgh PA) Reuther John F. (Pittsburgh PA). System and method for operating industrial gas turbine apparatus and gas turbine electric power plants preferably with a. USP1981124308463.
  10. Murugan Muthu K. (Howell NJ). Turbine engine start system with improved starting characteristics. USP1994065325042.
  11. Baker Donal E. (American Township ; Allen County OH) Ogden Jack W. (Fort Shawnee OH). VSCF starter/generator systems. USP1990084948209.

이 특허를 인용한 특허 피인용횟수: 27

  1. Dooley, Kevin Allan. Architecture for electric machine. USP2010057709980.
  2. Dooley, Kevin Allan. Architecture for electric machine. USP2009097583063.
  3. Dooley, Kevin Allan. Architecture for electric machine. USP2005116965183.
  4. Dooley,Kevin Allan. Architecture for electric machine. USP2007127312550.
  5. Dooley,Kevin Allan. Architecture for electric machine. USP2006107126313.
  6. Fogarty, James Michael; Gottung, Gary Edward; Stuebner, David Mark. Conversion of synchronous generator to synchronous condenser. USP2014068754615.
  7. Dooley, Kevin Allan. Current limiting means for a generator. USP2010027656067.
  8. Dooley, Kevin Allan. Current limiting means for a generator. USP2005076920023.
  9. Dooley,Kevin Allan. Current limiting means for a generator. USP2007127309939.
  10. Dooley,Kevin Allan. Current limiting means for a generator. USP2008107436098.
  11. Dooley,Kevin Allan. Current limiting means for a generator. USP2006107119467.
  12. Lando, Jean Louis; Foch, Etienne; Roboam, Xavier; Alejo, Dominique. Device for supplying electrical power to an aircraft and for electrically starting a jet engine on board an aircraft. USP2009127638890.
  13. Dooley,Kevin; Dowhan,Michael. Method and apparatus for controlling an electric machine. USP2007087253548.
  14. Dooley,Kevin; Dowhan,Michael. Method and apparatus for controlling an electric machine. USP2008107443070.
  15. Fogarty, James Michael; Gott, Brian Ernest Baxter; Yagielski, John Russell; Vinitzky, Yury Danilovich. Method and apparatus for starting a gas turbine using a polyphase electric power generator. USP2005116960900.
  16. Gupta, Suresh C.; Burnham, Douglas R.; Teets, J. Michael; Teets, Jon W.. Method and apparatus for turbine/alternator on common shaft during start-up. USP2005066911742.
  17. Yu, Ping. Method and systems for operating a combined cycle power plant. USP2011077975490.
  18. Dooley, Kevin Allan. Modulation control of power generation system. USP2009087579812.
  19. Dooley,Kevin Allan. Modulation control of power generation system. USP2008107439713.
  20. Dooley, Kevin A.; Rozman, Gregory I.. Motor drive architecture with active snubber. USP2011128076882.
  21. Turner, William Brian; Brown, Neil; Meadows, Richard; Biebighaeuser, Andreas. Power generation system, wind turbine, and a method of controlling the wind turbine for supplying power to an electrical grid. USP2011088008795.
  22. Dooley, Kevin Allan. Power inverter and method. USP2012108279648.
  23. Dooley, Kevin Allan; Bell, Joshua David. Saturation control of electric machine. USP2009067545056.
  24. Dooley,Kevin Allan. Saturation control of electric machine. USP2007087262539.
  25. Day, Scott Arthur. Synchronous condenser. USP2017129847640.
  26. Larsen, Einar Vaughn. Systems and methods involving starting variable speed generators. USP2011077977925.
  27. Dooley,Kevin Allan; Bell,Joshua David. Voltage-limited electric machine. USP2007107288923.