Patents by Inventor Gregorio Rivas

Gregorio Rivas has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Collector anti-wearing and lubrication system for variable speed wind turbine
    Patent number: 8294288
    Abstract: A variable speed wind turbine having a doubly fed induction generator (DFIG), includes an exciter machine mechanically coupled to the DFIG and a power converter placed between a rotor of the DFIG and the exciter machine. Thus, the power converter is not directly connected to the grid avoiding the introduction of undesired harmonic distortion and achieving a better power quality fed into the utility grid. Moreover, the variable speed wind turbine includes a power control and a pitch regulation.
    Type: Grant
    Filed: February 28, 2007
    Date of Patent: October 23, 2012
    Assignee: Ingeteam Power Technology, S.A.
    Inventors: Gregorio Rivas, Iker Garmendia, Josu Elorriaga, Jesus Mayor, Javier Perez Barbachano, David Sole, Jorge Acedo
  • High voltage direct current link transmission system for variable speed wind turbine
    Patent number: 8264094
    Abstract: A variable speed wind turbine having a doubly fed induction generator (DFIG), includes an exciter machine mechanically coupled to the DFIG and a power converter placed between a rotor of the DFIG and the exciter machine. Thus, the power converter is not directly connected to the grid avoiding the introduction of undesired harmonic distortion and achieving a better power quality fed into the utility grid. Moreover, the variable speed wind turbine includes a power control and a pitch regulation.
    Type: Grant
    Filed: March 16, 2007
    Date of Patent: September 11, 2012
    Assignee: Ingeteam Power Technology, S.A.
    Inventors: Gregorio Rivas, Iker Garmendia, Josu Elorriaga, Jesus Mayor, Javier Perez Barbachano, David Sole, Jorge Acedo
  • Dynamic electric brake for a variable speed wind turbine having an exciter machine and a power converter not connected to the grid
    Patent number: 8207623
    Abstract: A variable speed wind turbine having a doubly fed induction generator (DFIG), includes an exciter machine mechanically coupled to the DFIG and a power converter placed between a rotor of the DFIG and the exciter machine. Thus, the power converter is not directly connected to the grid avoiding the introduction of undesired harmonic distortion and achieving a better power quality fed into the utility grid. Moreover, the variable speed wind turbine includes a power control and a pitch regulation.
    Type: Grant
    Filed: February 28, 2007
    Date of Patent: June 26, 2012
    Assignee: Ingeteam Energy, S.A.
    Inventors: Gregorio Rivas, Iker Garmendia, Josu Elorriaga, Jesus Mayor, Javier Perez Barbachano, David Sole, Jorge Acedo
  • Connection and disconnection sequence for variable speed wind turbine having an exciter machine and a power converter not connected to the grid
    Patent number: 8183704
    Abstract: A variable speed wind turbine having a doubly fed induction generator (DFIG), includes an exciter machine mechanically coupled to the DFIG and a power converter placed between a rotor of the DFIG and the exciter machine. Thus, the power converter is not directly connected to the grid avoiding the introduction of undesired harmonic distortion and achieving a better power quality fed into the utility grid. Moreover, the variable speed wind turbine includes a power control and a pitch regulation.
    Type: Grant
    Filed: February 28, 2007
    Date of Patent: May 22, 2012
    Assignee: Ingeteam Energy, S.A.
    Inventors: Gregorio Rivas, Iker Garmendia, Josu Elorriaga, Jesus Mayor, Javier Perez Barbachano, David Sole, Jorge Acedo
  • COLLECTOR ANTI-WEARING AND LUBRICATION SYSTEM FOR VARIABLE SPEED WIND TURBINE
    Publication number: 20110057443
    Abstract: A variable speed wind turbine having a doubly fed induction generator (DFIG), includes an exciter machine mechanically coupled to the DFIG and a power converter placed between a rotor of the DFIG and the exciter machine. Thus, the power converter is not directly connected to the grid avoiding the introduction of undesired harmonic distortion and achieving a better power quality fed into the utility grid. Moreover, the variable speed wind turbine includes a power control and a pitch regulation.
    Type: Application
    Filed: February 28, 2007
    Publication date: March 10, 2011
    Inventors: Gregorio Rivas, Iker Garmendia, Josu Elorriaga, Jesus Mayor, Javier Perez Barbachano, David Sole, Jorge Acedo
  • PITCH CONTROL SYSTEM AND METHOD FOR WIND TURBINES
    Publication number: 20100127494
    Abstract: The present invention describes a pitch control system comprising a principal converter, and auxiliary converter, a direct current motor and a power storage system (accumulator) and has four different operation modes: normal, fault (first level), fault (second level) and emergency. In the case that a fault is detected, the system can move the motor in order to move the vanes to the desired position by making a controlled adjustment.
    Type: Application
    Filed: May 4, 2007
    Publication date: May 27, 2010
    Inventors: Iker Garmendia Olarreaga, David Sole Lopez, Ernesto Beorlegui Aranguren, Jesus Mayor Lusarreta, Jorge Acedo Sanchez, Javier Perez Barbachano, Ainhoa Carcar Mayor, Mikel Zabaleta Maetzu, Josu Elorriaga Llanos, Javier Coloma Calahorra, Gregorio Rivas Barricarte
  • Low voltage ride through system for a variable speed wind turbine having an exciter machine and a power converter not connected to the grid
    Patent number: 7622815
    Abstract: A variable speed wind turbine having a doubly fed induction generator (DFIG) includes an exciter machine mechanically coupled to the DFIG and a power converter placed between a rotor of the DFIG and the exciter machine which guarantees a stable voltage to the power converter. Thus, the power converter is not directly connected to the grid allowing the continuous operation of the system during a low voltage event in the grid.
    Type: Grant
    Filed: December 29, 2006
    Date of Patent: November 24, 2009
    Assignee: Ingeteam Energy, S.A.
    Inventors: Gregorio Rivas, Iker Garmendia, Josu Elorriaga, Jesus Mayor, Javier Perez Barbachano, David Sole, Jorge Acedo
  • HIGH VOLTAGE DIRECT CURRENT LINK TRANSMISSION SYSTEM FOR VARIABLE SPEED WIND TURBINE
    Publication number: 20090278351
    Abstract: A variable speed wind turbine having a doubly fed induction generator (DFIG), includes an exciter machine mechanically coupled to the DFIG and a power converter placed between a rotor of the DFIG and the exciter machine. Thus, the power converter is not directly connected to the grid avoiding the introduction of undesired harmonic distortion and achieving a better power quality fed into the utility grid. Moreover, the variable speed wind turbine includes a power control and a pitch regulation.
    Type: Application
    Filed: March 16, 2007
    Publication date: November 12, 2009
    Applicant: INGETEAM S.A.
    Inventors: Gregorio Rivas, Iker Garmendia, Josu Elorriaga, Jesus Mayor, Javier Perez Barbachano, David Sole, Jorge Acedo
  • DYNAMIC ELECTRIC BRAKE FOR A VARIABLE SPEED WIND TURBINE HAVING AN EXCITER MACHINE AND A POWER CONVERTER NOT CONNECTED TO THE GRID
    Publication number: 20090278352
    Abstract: A variable speed wind turbine having a doubly fed induction generator (DFIG), includes an exciter machine mechanically coupled to the DFIG and a power converter placed between a rotor of the DFIG and the exciter machine. Thus, the power converter is not directly connected to the grid avoiding the introduction of undesired harmonic distortion and achieving a better power quality fed into the utility grid. Moreover, the variable speed wind turbine includes a power control and a pitch regulation.
    Type: Application
    Filed: February 28, 2007
    Publication date: November 12, 2009
    Applicant: INGETEAM S.A.
    Inventors: Gregorio Rivas, Iker Garmendia, Josu Elorriaga, Jesus Mayor, Javier Perez Barbachano, David Sole, Jorge Acedo
  • CONNECTION AND DISCONNECTION SEQUENCE FOR VARIABLE SPEED WIND TURBINE HAVING AN EXCITER MACHINE AND A POWER CONVERTER NOT CONNECTED TO THE GRID
    Publication number: 20090167095
    Abstract: A variable speed wind turbine having a doubly fed induction generator (DFIG), includes an exciter machine mechanically coupled to the DFIG and a power converter placed between a rotor of the DFIG and the exciter machine. Thus, the power converter is not directly connected to the grid avoiding the introduction of undesired harmonic distortion and achieving a better power quality fed into the utility grid. Moreover, the variable speed wind turbine includes a power control and a pitch regulation.
    Type: Application
    Filed: February 28, 2007
    Publication date: July 2, 2009
    Applicant: INGETEAM S.A.
    Inventors: Gregorio Rivas, Iker Garmendia, Josu Elorriaga, Jesus Mayor, Javier Perez Barbachano, David Sole, Jorge Acedo
  • Reactive power control for operating a wind farm
    Patent number: 7531911
    Abstract: A system and method of reactive power regulation in a wind farm having a plurality of wind turbines that provides optimum control of the reactive power compensation in the wind farm and is able to keep a reactive power reserve in order to support eventual grid contingencies.
    Type: Grant
    Filed: December 22, 2006
    Date of Patent: May 12, 2009
    Assignee: Ingeteam Energy, S.A.
    Inventors: Gregorio Rivas, Iker Garmendia, Josu Elorriaga, Jesus Mayor, Javier Perez Barbachano, David Sole, Jorge Acedo
  • Variable speed wind turbine having an exciter machine and a power converter not connected to the grid
    Patent number: 7425771
    Abstract: A variable speed wind turbine having a doubly fed induction generator (DFIG), includes an exciter machine mechanically coupled to the DFIG and a power converter placed between a rotor of the DFIG and the exciter machine. Thus, the power converter is not directly connected to the grid avoiding the introduction of undesired harmonic distortion and achieving a better power quality fed into the utility grid. Moreover, the variable speed wind turbine includes a power control and a pitch regulation.
    Type: Grant
    Filed: June 30, 2006
    Date of Patent: September 16, 2008
    Assignee: Ingeteam S.A.
    Inventors: Gregorio Rivas, Iker Garmendia, Josu Elorriaga, Jesus Mayor, Javier Perez Barbachano, David Sole, Jorge Acedo
  • LOW VOLTAGE RIDE THROUGH SYSTEM FOR A VARIABLE SPEED WIND TURBINE HAVING AN EXCITER MACHINE AND A POWER CONVERTER NOT CONNECTED TO THE GRID
    Publication number: 20080157529
    Abstract: A variable speed wind turbine having a doubly fed induction generator (DFIG) includes an exciter machine mechanically coupled to the DFIG and a power converter placed between a rotor of the DFIG and the exciter machine which guarantees a stable voltage to the power converter. Thus, the power converter is not directly connected to the grid allowing the continuous operation of the system during a low voltage event in the grid.
    Type: Application
    Filed: December 29, 2006
    Publication date: July 3, 2008
    Applicant: INGETEAM, S.A.
    Inventors: Gregorio Rivas, Iker Garmendia, Josu Elorriaga, Jesus Mayor, Javier Perez Barbachano, David Sole, Jorge Acedo
  • REACTIVE POWER CONTROL FOR OPERATING A WIND FARM
    Publication number: 20080150283
    Abstract: A system and method of reactive power regulation in a wind farm having a plurality of wind turbines that provides optimum control of the reactive power compensation in the wind farm and is able to keep a reactive power reserve in order to support eventual grid contingencies.
    Type: Application
    Filed: December 22, 2006
    Publication date: June 26, 2008
    Applicant: INGETEAM, S.A.
    Inventors: Gregorio Rivas, Iker Garmendia, Josu Elorriaga, Jesus Mayor, Javier Perez Barbachano, David Sole, Jorge Acedo
  • Variable speed wind turbine having an exciter machine and a power converter not connected to the grid
    Publication number: 20070216164
    Abstract: A variable speed wind turbine having a doubly fed induction generator (DFIG), includes an exciter machine mechanically coupled to the DFIG and a power converter placed between a rotor of the DFIG and the exciter machine. Thus, the power converter is not directly connected to the grid avoiding the introduction of undesired harmonic distortion and achieving a better power quality fed into the utility grid. Moreover, the variable speed wind turbine includes a power control and a pitch regulation.
    Type: Application
    Filed: June 30, 2006
    Publication date: September 20, 2007
    Inventors: Gregorio Rivas, Iker Garmendia, Josu Elorriaga, Jesus Mayor, Javier Barbachano, David Sole, Jorge Acedo