Patents by Inventor Bernard Landa

Bernard Landa 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).

  • Patent number: 8096761
    Abstract: A method for operating a wind turbine. The method includes providing a wind turbine having at least one blade having adjustable pitch angle that is adjusted according to an operational parameter schedule. A blade efficiency parameter is determined in response to a wind speed and a rotor speed. A minimum pitch angle is determined in response to the blade efficiency parameter and the pitch angle of the at least one blade in response to the blade efficiency parameter is maintained to an angle equal to or greater than the minimum pitch angle independent of the operational parameter schedule. A wind turbine plant and a method for servicing a wind turbine are also disclosed.
    Type: Grant
    Filed: October 16, 2008
    Date of Patent: January 17, 2012
    Assignee: General Electric Company
    Inventors: Thomas Frank Fric, Kevin Standish, Kirk Gee Pierce, Bernard Landa
  • Patent number: 8035242
    Abstract: A method of controlling a wind turbine that includes at least one rotor shaft and at least one blade operatively coupled to the rotor shaft includes measuring a first wind turbine operational condition that is representative of a blade deflection value and generating a first operational condition signal based on that first wind turbine operational condition. The wind turbine also includes a drive train including at least one rotor shaft and an electric generator. The method also includes measuring at least one second wind turbine operational condition and generating at least one second operational condition signal. The method further includes changing the blade deflection value by changing the second operational condition.
    Type: Grant
    Filed: November 9, 2010
    Date of Patent: October 11, 2011
    Assignee: General Electric Company
    Inventors: Bernard Landa, Carlos Eduardo Latorre, Thomas Frank Fric, Thomas Omar Converse, Thomas Dinjus, Michael Gregory Brown, Gert Torbohm, Nadine Schuell
  • Patent number: 8021112
    Abstract: A method for monitoring wear of a blade pitch brake within a rotor blade pitch control system of a wind turbine is described. The rotor blade pitch control system includes a blade pitch actuator. The method includes engaging the blade pitch brake and measuring a blade pitch displacement while the blade pitch brake is engaged. The method further includes determining a brake wear level based on the measured blade pitch displacement while the blade pitch brake is engaged, and generating a brake wear level output signal corresponding to the brake wear level.
    Type: Grant
    Filed: June 29, 2010
    Date of Patent: September 20, 2011
    Assignee: General Electric Company
    Inventors: Thomas Ernst Dinjus, Bernard Landa
  • Publication number: 20110140431
    Abstract: A method of controlling a wind turbine that includes at least one rotor shaft and at least one blade operatively coupled to the rotor shaft includes measuring a first wind turbine operational condition that is representative of a blade deflection value and generating a first operational condition signal based on that first wind turbine operational condition. The wind turbine also includes a drive train including at least one rotor shaft and an electric generator. The method also includes measuring at least one second wind turbine operational condition and generating at least one second operational condition signal. The method further includes changing the blade deflection value by changing the second operational condition.
    Type: Application
    Filed: November 9, 2010
    Publication date: June 16, 2011
    Inventors: Bernard Landa, Carlos Eduardo Latorre, Thomas Frank Fric, Thomas Omar Converse, Thomas Dinjus, Michael Gregory Brown, Gert Torbohm, Nadine Schuell
  • Publication number: 20110142594
    Abstract: A method for monitoring wear of a blade pitch brake within a rotor blade pitch control system of a wind turbine is described. The rotor blade pitch control system includes a blade pitch actuator. The method includes engaging the blade pitch brake and measuring a blade pitch displacement while the blade pitch brake is engaged. The method further includes determining a brake wear level based on the measured blade pitch displacement while the blade pitch brake is engaged, and generating a brake wear level output signal corresponding to the brake wear level.
    Type: Application
    Filed: June 29, 2010
    Publication date: June 16, 2011
    Inventors: Thomas Ernst Dinjus, Bernard Landa
  • Publication number: 20100098540
    Abstract: A method for operating a wind turbine. The method includes providing a wind turbine having at least one blade having adjustable pitch angle that is adjusted according to an operational parameter schedule. A blade efficiency parameter is determined in response to a wind speed and a rotor speed. A minimum pitch angle is determined in response to the blade efficiency parameter and the pitch angle of the at least one blade in response to the blade efficiency parameter is maintained to an angle equal to or greater than the minimum pitch angle independent of the operational parameter schedule. A wind turbine plant and a method for servicing a wind turbine are also disclosed.
    Type: Application
    Filed: October 16, 2008
    Publication date: April 22, 2010
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: Thomas Frank Fric, Kevin Standish, Kirk Gee Pierce, Bernard Landa
  • Publication number: 20050233151
    Abstract: In one embodiment, the data storage media can comprise: a substrate, a data layer, and a reflective layer disposed between the data layer and the substrate. The substrate can comprise a substrate material selected from the group consisting of polyphenylene ether, blends comprising polyphenylene ether, copolymers comprising polyphenylene ether, mixtures comprising polyphenylene ether, reaction products of a compostion comprising polyphenylene ether, and composites comprising polyphenylene ether. The data layer can comprise a material selected from the group consisting of organic dye and inorganic phase change materials. The storage media can comprise imprinted features. In another embodiment, the first surface data storage media can comprise: a substrate, a reflective layer on a first side of the substrate, and a protective layer disposed on a side of the substrate opposite the first side. The protective layer can comprise silicon dioxide. The first surface data storage media comprises imprinted features.
    Type: Application
    Filed: June 13, 2005
    Publication date: October 20, 2005
    Inventors: Thomas Feist, Wit Bushko, Kevin Dal, Daniel Furlano, Ramesh Hariharan, Kazunao Kubotera, Bernard Landa, Suresh Subramanian, Joseph Woods