Patents by Inventor Martin Staedler

Martin Staedler 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: 8212373
    Abstract: Method for increasing energy capture in wind plants includes providing a plurality of wind turbines having a variable speed control system including an initial rotational speed set point value which is a maximum rotational speed set point for wind turbines. Method includes obtaining at least two measured operational parameters from one or more sensors and comparing measured operational parameters to mechanical load of turbine. If mechanical load of turbine is decreased as a result of measured operational parameters, a speed control adjustment method is activated. Speed control adjustment method includes determining an adjusted rotational speed set point greater than initial rotational speed set point value in response to at least two measured and compared operational parameters and configuring control system with adjusted rotational speed set point where adjusted rotational speed set point increases maximum rotational speed set point of wind turbines.
    Type: Grant
    Filed: December 2, 2011
    Date of Patent: July 3, 2012
    Assignee: General Electric Company
    Inventors: Lothar Wittekind, Renjith Viripullan, Martin Staedler
  • Publication number: 20120091714
    Abstract: Method for increasing energy capture in wind plants includes providing a plurality of wind turbines having a variable speed control system including an initial rotational speed set point value which is a maximum rotational speed set point for wind turbines. Method includes obtaining at least two measured operational parameters from one or more sensors and comparing measured operational parameters to mechanical load of turbine. If mechanical load of turbine is decreased as a result of measured operational parameters, a speed control adjustment method is activated. Speed control adjustment method includes determining an adjusted rotational speed set point greater than initial rotational speed set point value in response to at least two measured and compared operational parameters and configuring control system with adjusted rotational speed set point where adjusted rotational speed set point increases maximum rotational speed set point of wind turbines.
    Type: Application
    Filed: December 2, 2011
    Publication date: April 19, 2012
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: Lothar WITTEKIND, Renjith VIRIPULLAN, Martin STAEDLER
  • Patent number: 8093737
    Abstract: A method for operating a wind turbine. The method includes providing a wind turbine having a variable speed control system, the control system having an initial rotational speed set point. At least two operational parameters are obtained from one or more sensors. An adjusted rotational speed set point greater than the initial rotational speed set point is determined in response to the operational parameter. The control system is configured with the adjusted rotational speed set point. A wind turbine and wind turbine plant are also disclosed.
    Type: Grant
    Filed: May 29, 2008
    Date of Patent: January 10, 2012
    Assignee: General Electric Company
    Inventors: Lothar Wittekind, Renjith Viripullan, Martin Staedler
  • Publication number: 20110140425
    Abstract: A wind turbine includes a drive train and a brake configured to reduce a rotational speed of the drive train. The wind turbine also includes a brake control system operatively coupled to the brake. The brake control system is configured to selectively operate the brake based on an oscillational characteristic of at least one component of the wind turbine.
    Type: Application
    Filed: August 25, 2010
    Publication date: June 16, 2011
    Inventor: Martin Staedler
  • Patent number: 7802469
    Abstract: A method for testing the brakes of a wind energy system is provided, wherein the method comprising determining the brake torque by an indirect measurement. The method contains a comparison to defined threshold values for time and generator torque as well as time and actual power. Further, a computer-readable medium is provided that provides instructions which when executed by a computing platform cause the computing platform to perform operations wherein the operations include the method according to embodiments described herein. Further, a wind energy system is provided that has a rotor with a rotor brake and a calculation unit adapted for comparing two threshold values for time and torque to the actual values of time and torque, alternatively for comparing two threshold values for time and actual power to the actual values of time and actual power.
    Type: Grant
    Filed: March 7, 2008
    Date of Patent: September 28, 2010
    Assignee: General Electric Company
    Inventors: Martin Staedler, Frank Hinken
  • Publication number: 20090295160
    Abstract: A method for operating a wind turbine. The method includes providing a wind turbine having a variable speed control system, the control system having an initial rotational speed set point. At least two operational parameters are obtained from one or more sensors. An adjusted rotational speed set point greater than the initial rotational speed set point is determined in response to the operational parameter. The control system is configured with the adjusted rotational speed set point. A wind turbine and wind turbine plant are also disclosed.
    Type: Application
    Filed: May 29, 2008
    Publication date: December 3, 2009
    Applicant: GE WIND ENERGY GMBH
    Inventors: Lothar WITTEKIND, Renjith VIRIPULLAN, Martin STAEDLER
  • Publication number: 20090223307
    Abstract: A method for testing the brakes of a wind energy system is provided, wherein the method comprising determining the brake torque by an indirect measurement. The method contains a comparison to defined threshold values for time and generator torque as well as time and actual power. Further, a computer-readable medium is provided that provides instructions which when executed by a computing platform cause the computing platform to perform operations wherein the operations include the method according to embodiments described herein. Further, a wind energy system is provided that has a rotor with a rotor brake and a calculation unit adapted for comparing two threshold values for time and torque to the actual values of time and torque, alternatively for comparing two threshold values for time and actual power to the actual values of time and actual power.
    Type: Application
    Filed: March 7, 2008
    Publication date: September 10, 2009
    Inventors: Martin Staedler, Frank Hinken