Patents by Inventor Pieter M.O. GEBRAAD

Pieter M.O. GEBRAAD 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: 11846270
    Abstract: A method of controlling a plurality of wind turbines of a wind park includes: determining an axial induction zone of at least a wind turbine of the wind park; and modifying the axial induction zone for controlling wind farm blockage by adjusting at least one of the following operational variables: a yaw angle of a blade rotor of the wind turbine, a pitch offset angle of at least one blade of the blade rotor, a rotor speed of the blade rotor.
    Type: Grant
    Filed: April 9, 2021
    Date of Patent: December 19, 2023
    Inventors: Safak Burak Altun, Pieter M. O. Gebraad
  • Publication number: 20230175490
    Abstract: A method of controlling a plurality of wind turbines of a wind park includes: determining an axial induction zone of at least a wind turbine of the wind park; and modifying the axial induction zone for controlling wind farm blockage by adjusting at least one of the following operational variables: a yaw angle of a blade rotor of the wind turbine, a pitch offset angle of at least one blade of the blade rotor, a rotor speed of the blade rotor.
    Type: Application
    Filed: April 9, 2021
    Publication date: June 8, 2023
    Inventors: Safak Burak Altun, Pieter M. O. Gebraad
  • Patent number: 11668279
    Abstract: Provided is a wind park, a wind park controller, and a method for controlling a first wind turbine of a plurality of wind turbines of a wind park, wherein a second wind turbine of the plurality of wind turbines can be affected by a wake region caused by the first wind turbine which is positioned upstream of the second wind turbine. A current yaw state is determined and is selected from at least one of: a) an actual rotor yaw misalignment angle of the first wind turbine, wherein the actual rotor yaw misalignment angle is an angle between a rotating axis of a rotor of the first wind turbine and a current wind direction at the rotating axis upstream of the first wind turbine, b) an identifier representing whether the actual rotor yaw misalignment angle is either in a range of positive yaw misalignment angles or of negative yaw misalignment angles.
    Type: Grant
    Filed: September 6, 2019
    Date of Patent: June 6, 2023
    Assignee: SIEMENS GAMESA RENEWABLE ENERGY A/S
    Inventors: Per Egedal, Pieter M. O. Gebraad
  • Patent number: 11536249
    Abstract: Provided is a method of determining a control setting of at least one wind turbine of a wind park, the method including: determining a free-stream wind turbulence and deriving the control setting based on the free-stream wind turbulence, wherein the control setting includes a yawing offset, and wherein the yawing offset is derived to be the smaller, the higher the free-stream wind turbulence is.
    Type: Grant
    Filed: March 1, 2019
    Date of Patent: December 27, 2022
    Inventor: Pieter M. O. Gebraad
  • Publication number: 20210231103
    Abstract: It is described a method for controlling at least one considered wind turbine (5) in a wind park (1), comprising: determining, based on a wind condition (7b), in particular wind direction (7b), whether another wind turbine (9a, . . . ,9e) is in a wake region caused by the considered wind turbine; if another wind turbine (9b) is the closest wind turbine in the wake region (11b) and if the other wind turbine (9b) is in an operable state, applying a first control setting (15) to the considered wind turbine (5); if the other wind turbine (0b) is in a non-operable state applying a second control setting (17) to the considered wind turbine (5), wherein the first control setting is based on wind park level optimisation and the second control setting is based on wind turbine level optimisation.
    Type: Application
    Filed: June 4, 2019
    Publication date: July 29, 2021
    Inventor: Pieter M.O. Gebraad
  • Publication number: 20210207580
    Abstract: Provided is a wind park, a wind park controller, and a method for controlling a first wind turbine of a plurality of wind turbines of a wind park, wherein a second wind turbine of the plurality of wind turbines can be affected by a wake region caused by the first wind turbine which is positioned upstream of the second wind turbine. A current yaw state is determined and is selected from at least one of: a) an actual rotor yaw misalignment angle of the first wind turbine, wherein the actual rotor yaw misalignment angle is an angle between a rotating axis of a rotor of the first wind turbine and a current wind direction at the rotating axis upstream of the first wind turbine, b) an identifier representing whether the actual rotor yaw misalignment angle is either in a range of positive yaw misalignment angles or of negative yaw misalignment angles.
    Type: Application
    Filed: September 6, 2019
    Publication date: July 8, 2021
    Inventors: Per Egedal, Pieter M. O. Gebraad
  • Publication number: 20210115900
    Abstract: Provide is a method of estimating free-stream inflow at a downstream wind turbine of a wind park, the method including: selecting, from plural candidate wind turbines previously defined specifically for the downstream wind turbine, an upstream wind turbine based on a currently determined wind direction; using determination equipment of the selected upstream wind turbine to determine the free-stream inflow.
    Type: Application
    Filed: February 15, 2019
    Publication date: April 22, 2021
    Inventor: Pieter M. O. Gebraad
  • Publication number: 20210047999
    Abstract: Provided is a method of determining a control setting of at least one wind turbine of a wind park, the method including: determining a free-stream wind turbulence and deriving the control setting based on the free-stream wind turbulence, wherein the control setting includes a yawing offset, and wherein the yawing offset is derived to be the smaller, the higher the free-stream wind turbulence is.
    Type: Application
    Filed: March 1, 2019
    Publication date: February 18, 2021
    Inventor: Pieter M. O. Gebraad
  • Publication number: 20160215759
    Abstract: A system includes at least one processor and at least one module operable by the at least one processor to receive at least one sensor measurement. The at least one sensor measurement may include at least one of a wind speed measurement, or a wind direction measurement. The at least one module may be further operable to determine, using a stochastic filter, and based on the at least one sensor measurement, at least one predicted attribute of a wake generated by a wind turbine, the wind turbine being one of a plurality of wind turbines of a wind plant.
    Type: Application
    Filed: January 28, 2016
    Publication date: July 28, 2016
    Inventors: Paul FLEMING, Pieter M.O. GEBRAAD