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Power factor motor control system

IPC분류정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판)
  • H02P-005/28
출원번호 US-0304045 (1989-01-30)
발명자 / 주소
  • Lauw Hian K. (Corvallis OR)
출원인 / 주소
  • State of Oregon acting by and through the State Board of Higher Education on behalf of Oregon State University (Eugene OR 09)
인용정보 피인용 횟수 : 62  인용 특허 : 11

초록

A device and associated method to control the electromechanical energy conversion process of a variable speed drive utilizing a doubly fed machine, which provides the mechanical energy as demanded by some mechanical load. Alternatively, a device and associated method is provided for a synchronous mo

대표청구항

A method for controlling a doubly fed motor driving a load, the doubly fed motor having stator windings and rotor windings and receiving power from an electric power grid having a system frequency, the method comprising the steps of: monitoring the values of the electric power grid input to the doub

이 특허에 인용된 특허 (11)

  1. Kilgore Lee A. (Export PA) Godwin Gurney L. (Pittsburgh PA) Whitney Eugene C. (Pittsburgh PA), Asynchronous tie.
  2. Okuyama Toshiaki (Hitachi JPX) Kubota Yuzuru (Hitachi JPX) Nagase Hiroshi (Hitachi JPX), Control apparatus for induction motor.
  3. Okuyama Toshiaki (Hitachi JPX) Kubota Yuzuru (Hitachi JPX) Nagase Hiroshi (Hitachi JPX), Control system for a.c. motors.
  4. Schwarz ; Francisc C., Controllable four quadrant a.c. to a.c. and d.c. converter employing an internal high frequency series resonant link.
  5. Rohatyn Frederick (166-10 ; 15th Dr. Beechhurst NY 11357), Energy saving system for larger three phase induction motors.
  6. Grenfell K. Pascoe (Delanson NY), Load peak shaver power regulating system.
  7. Rohatyn Frederick (166-10 ; 15th Drive Beechhurst NY 11375), Power factor correction system.
  8. Libert James T. (Waukesha WI) Curran ; Jr. Earl J. (South Milwaukee WI), Self calibration of the thyristor firing angel of a motor controller using a current window to determine a final value o.
  9. Nickoladze Leo G. (1155 Kahili St. Kailua HI 96734), Synchronous generators.
  10. Roesel ; Jr. John F. (Bradenton FL), Variable speed A.C. motor.
  11. Baker Richard H. (Bedford MA), Variable speed electronic motor and the like.

이 특허를 인용한 특허 (62)

  1. Hernnaes Bo,SEX ; Kalldin Hans-Olof,SEX ; Imrell Torbjorn,SEX, Anode, process for anodizing, anodized wire and electric device comprising such anodized wire.
  2. Gunnar Kylander SE; Mats Leijon SE, Axial cooling of a rotor.
  3. Tupper, Christopher N.; Wood, Duncan G., Brushless high-frequency alternator and excitation method for three-phase AC power-frequency generation.
  4. Berggren Soren,SEX, Cable forerunner.
  5. Alberti Backlund SE; Mats Leijon SE, Coiling device.
  6. Mats Leijon SE; Kenneth Johannesson SE; Stefan Milton SE; Peter Carstensen SE; Bengt Rydholm SE, Conductor for high-voltage windings and a rotating electric machine comprising a winding including the conductor.
  7. Hudson, Raymond M., Control system for doubly fed induction generator.
  8. Hudson,Raymond M., Control system for doubly fed induction generator.
  9. Gokhale, Kalyan P.; Karraker, Douglas W.; Heikkilä, Samuli J., Controller for a wound rotor slip ring induction machine.
  10. Kalyan P. Gokhale ; Douglas W. Karraker ; Samuli J. Heikkila FI, Controller for a wound rotor slip ring induction machine.
  11. Hobelsberger, Max; Mark, Bernhard, Device and method for monitoring and/or analyzing rotors of electric machines in operation.
  12. Lamascus, Craig; Wentworth, Lloyd, Electrical apparatus and control system.
  13. Kimura,Mamoru; Futami,Motoo; Ichinose,Masaya; Ide,Kazumasa; Imaie,Kazuhiro, Electrical rotating machine control unit and power generation system.
  14. Kimura,Mamoru; Futami,Motoo; Ichinose,Masaya; Ide,Kazumasa; Imaie,Kazuhiro, Electrical rotating machine control unit and power generation system.
  15. Kimura,Mamoru; Futami,Motoo; Ichinose,Masaya; Ide,Kazumasa; Imaie,Kazuhiro, Electrical rotating machine control unit and power generation system.
  16. Leijon, Mats, Electromagnetic device.
  17. Grenblad, Birgitta; Kylander, Gunnar; Leijon, Mats; Goran, Bengt; Edman, Arne; Kalldin, Hans-Olof, End plate.
  18. Hatakeyama, Kazunori; Kamiya, Syota; Yuasa, Kenta; Matsushita, Shinya; Kusube, Shinsaku; Makino, Tsutomu, Heat pump device, heat pump system, and method for controlling inverter.
  19. Leijon, Mats; Berggren, Bertil; Gertmar, Lars; Nygren, Jan-Anders; S?rensen, Erland, High voltage AC machine winding with grounded neutral circuit.
  20. Leijon, Mats; Gertmar, Lars; Brandt, Lennart, High voltage plants with electric motors.
  21. Lingener, Uwe, High-pressure pump arrangement.
  22. Leijon, Mats; Hernn?s, Bo; Carstensen, Peter; H?lleland, Mons; Templin, Peter; Gertmar, Lars; Ivarson, Claes; S?rensen, Erland; Davidsson, Gunnar; Kylander, Gunnar; Larsson, Bertil; Berggren, S?ren; , Hydro-generator plant.
  23. Min, Pan; Ming, Li; Liu, Rongsheng; Dahlgren, Mikael; Holmberg, Par; Russberg, Gunnar; Sasse, Christian; S?derholm, Svante, Induction devices with distributed air gaps.
  24. Mats Leijon SE; Peter Carstensen SE, Insulated conductor for high-voltage windings and a method of manufacturing the same.
  25. Bengt Rothman SE, Laminated magnetic core for electric machines.
  26. Leggate, David; Skibinski, Gary Leonard; Woltersdorf, Gary R., Method and apparatus for adjustable voltage/adjustable frequency inverter control.
  27. Nygren, Jan-Anders; Berggren, Bertil, Method and device for controlling the magnetic flux in a rotating high voltage electric alternating current machine.
  28. Alberti Backlund SE; Mats Leijon SE, Method and device for mounting a winding.
  29. Virtanen,Reijo; Pasuri,Osmo, Method for controlling doubly-fed machine.
  30. Wobben,Aloys, Method for operating a wind energy plant.
  31. Wobben,Aloys, Method for operating a wind turbine.
  32. Kretschmann, Jörg, Method of and apparatus for operating a double-fed asynchronous machine in the event of transient mains voltage changes.
  33. Larsson,Bertil; Rothman,Bengt, Method of applying a tube member in a stator slot in a rotating electrical machine.
  34. Weldon, James, Motor controller with automated input power determination.
  35. Bengt Rothman SE; Ivan Jonas SE; Kenneth Lundquist SE; Kent Engvall SE; Mats Leijon SE, Mounting device for rotating electric machines.
  36. Nelson, Robert J., Power oscillation damping employing a full or partial conversion wind turbine.
  37. Fromm, Udo; Hornfeldt, Sven; Holmberg, Par; Kylander, Gunnar; Ming, Li; Leijon, Mats, Power transformer/inductor.
  38. Fromm,Udo; Hornfeldt,Sven; Holmberg,Par; Kylander,Gunnar; Ming,Li; Leijon,Mats, Power transformer/inductor.
  39. Al-Hamrani, Majed, Reactive power optimization with adaptive excitation control.
  40. Yang Tai-Her (No. 32 Lane 29 ; Taipin St. ; Si-Hu Town Dzan-Hwa TWX), Reverse proportional voltage adjusting circuit system.
  41. Leijon, Mats; Sch?tte, Thorsten; Sasse, Christian; Fromm, Udo, Rotating asynchronous converter and a generator device.
  42. Kylander, Gunnar; Edman, Arne; Leijon, Mats; Landgren, Nils-Ivar, Rotating electric machine with coil supports.
  43. Holmstrom,Goran; Hedendahl,Lars; Walfridsson,Lars, Rotating electrical machine.
  44. Leijon, Mats; Templin, Peter; Rydholm, Bengt; Gertmar, Lars; Larsson, Bertil; Rothman, Bengt; Carstensen, Peter; Johansson, Leif; Ivarson, Claes; Hernnas, Bo; Holmstrom, Goran; Goran, Bengt; Backlund, Rotating electrical machine having high-voltage stator winding and elongated support devices supporting the winding and method for manufacturing the same.
  45. Ho,Eddy Ying Yin, Rotor angle estimation for permanent magnet synchronous motor drive.
  46. Mats Leijon SE; Lars Gertmar SE; Jan-Anders Nygren SE; Peter Templin SE, Series compensation of electric alternating current machines.
  47. Shimizu, Yuji; Hiroshima, Akane; Ono, Yutaka, Signal converter and control device.
  48. Shimizu, Yuji; Hiroshima, Akane; Ono, Yutaka, Signal converter and control device.
  49. Shimizu, Yuji; Hiroshima, Akane; Ono, Yutaka, Signal converter and control device.
  50. Schauder, Colin David, Slip-controlled, wound-rotor induction machine for wind turbine and other applications.
  51. Bass, Jordan; Sulfstede, Louis, Speed-defined torque control.
  52. Areskoug,Claes, Stationary induction machine and a cable therefor.
  53. Sasse, Christian; Leijon, Mats; Russberg, Gunnar; Fromm, Udo; Holmberg, Par, Switchable flux control for high power static electromagnetic devices.
  54. Leijon, Mats; Berggren, Bertil, Synchronous compensator plant.
  55. Leijon, Mats; Berggren, Bertil, Synchronous compensator plant.
  56. Beard, Paul, Systems and methods for open-loop control of a brushless motor.
  57. Fromm,Udo; Holmberg,Par; Jaksts,Albert; Leijon,Mats; Sasse,Christian; Schutte,Thorsten, Transformer with voltage regulating means.
  58. Leijon, Mats, Transformer/reactor.
  59. Leijon, Mats; Templin, Peter; Ivarson, Claes; Gertmar, Lars; Carstensen, Peter; Larsson, Bertil; Berggren, S?ren; S?rensen, Erland; Berggren, Bertil; Kylander, Gunnar; H?lleland, Mons, Turbo generator plant with a high voltage electric generator.
  60. Jadric,Ivan; Schnetzka,Harold Robert, Variable speed drive for a chiller system.
  61. Leijon,Mats; Kylander,Gunnar, Wind power plant.
  62. Flottemesch, Jörg; Holfeld, Hermann; Schaller, Stephan; Weinhold, Michael, Wing energy unit.
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