Patents by Inventor Benoit Petitjean
Benoit Petitjean 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).
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Publication number: 20230279835Abstract: A trailing edge panel is configured to be attached to a trailing edge of a wind turbine blade and includes a base element and a number of protruding aerodynamic elements. The base element has an attachment part configured to be attached to and extend from the trailing edge of the wind turbine blade and to an upstream position on a first blade side of the wind turbine blade. The base element further has a serrated part extending from the second side of the attachment part and configured to project out from the trailing edge of the wind turbine blade, wherein the serrated part comprises a number of serrations, including a first serration and a second serration. The number of protruding aerodynamic elements, including a first protruding aerodynamic element, includes a first protruding part attached to the serrated part of the base element.Type: ApplicationFiled: June 30, 2021Publication date: September 7, 2023Inventors: Benoit PETITJEAN, Guannan WANG, Andreas HERRIG, Jeremy HURAULT, Dongke SUN
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Patent number: 9404478Abstract: According to the present disclosure, a method of operating a wind turbine including operating the wind turbine in a noise reduction mode based on at least one set point of a wind turbine parameter such that noise produced by said wind turbine remains below a predefined noise emission level, obtaining an actual air density related value, and applying a correction factor to the at least one set point of a wind turbine parameter is provided. The correction factor is determined in dependence of said actual air density related value.Type: GrantFiled: April 24, 2012Date of Patent: August 2, 2016Assignee: General Electric CompanyInventors: Hartmut Scholte-Wassink, Saskia Honhoff, Benoit Petitjean
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Publication number: 20130280066Abstract: According to the present disclosure, a method of operating a wind turbine including operating the wind turbine in a noise reduction mode based on at least one set point of a wind turbine parameter such that noise produced by said wind turbine remains below a predefined noise emission level, obtaining an actual air density related value, and applying a correction factor to the at least one set point of a wind turbine parameter is provided. The correction factor is determined in dependence of said actual air density related value.Type: ApplicationFiled: April 24, 2012Publication date: October 24, 2013Inventors: Hartmut Scholte-Wassink, Saskia Honhoff, Benoit Petitjean
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Patent number: 8376262Abstract: An aircraft includes a cabin in which at least part of the space is demarcated by trim panels and the cabin is provided with a system for the active control of ambient noise. Each trim panel is either an active panel including actuators powered by the active noise control system or a passive panel without such actuators. In addition, the trim panels of the cabin of the one type, either active or passive, are mechanically interchangeable with a panel of the other type, either passive or active, respectively. Power supply wiring for active panels is installed in the aircraft, this wiring being capable of powering all active panels which could be installed, whether said active panels are actually installed or whether interchangeable passive panels are installed. Finally, a power supply system for the active panels is installed in the aircraft and connected to the power supply wiring of the active panels.Type: GrantFiled: July 9, 2008Date of Patent: February 19, 2013Assignee: European Aeronautic Defence and Space Company EADS FranceInventor: Benoit Petitjean
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Patent number: 8262363Abstract: A blade for a wind turbine includes a body adapted for movement in response to wind flow past the blade body. The body has an inner surface defining an interior chamber and an opposite outer surface. At least one damping element extends from the inner surface of the body. The at least one damping element is configured to facilitate reducing an amount of noise generated by and propagating through the blade.Type: GrantFiled: March 17, 2008Date of Patent: September 11, 2012Assignee: General Electric CompanyInventors: Brandon Gerber, Nicholas K. Althoff, Benoit Petitjean
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Patent number: 8232663Abstract: In one aspect, a method for controlling the amplitude modulation of the noise generated by wind turbines is disclosed. The method may include determining a rotor position of a first wind turbine, determining a rotor position of a second wind turbine, determining if the first and second wind turbines are operating in-phase and, in the event that the first and second wind turbines are operating in-phase, adjusting an operating condition of at least one of the first wind turbine and the second wind turbine so that the first and second wind turbines operate out-of-phase.Type: GrantFiled: June 30, 2011Date of Patent: July 31, 2012Assignee: General Electric CompanyInventors: Kevin Wayne Kinzie, Benoit Petitjean, Thomas Joseph Fischetti
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Patent number: 8231344Abstract: In one aspect, a method for controlling the amplitude modulation of noise generated by a wind turbine is disclosed. The method may generally include determining an angle of attack of a rotor blade of a wind turbine and maintaining the angle of attack at a substantially constant value during rotation of the rotor blade in order to reduce the amplitude modulation of the noise generated by the wind turbine.Type: GrantFiled: July 5, 2011Date of Patent: July 31, 2012Assignee: General Electric CompanyInventors: Kevin Wayne Kinzie, Benoit Petitjean, Roger Drobietz, Thomas Joseph Fischetti, Stefan Herr
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Publication number: 20120025530Abstract: In one aspect, a method for controlling the amplitude modulation of the noise generated by wind turbines is disclosed. The method may include determining a rotor position of a first wind turbine, determining a rotor position of a second wind turbine, determining if the first and second wind turbines are operating in-phase and, in the event that the first and second wind turbines are operating in-phase, adjusting an operating condition of at least one of the first wind turbine and the second wind turbine so that the first and second wind turbines operate out-of-phase.Type: ApplicationFiled: June 30, 2011Publication date: February 2, 2012Applicant: GENERAL ELECTRIC COMPANYInventors: Kevin Wayne Kinzie, Benoit Petitjean, Thomas Joseph Fischetti
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Publication number: 20120027592Abstract: In one aspect, a method for controlling the amplitude modulation of noise generated by a wind turbine is disclosed. The method may generally include determining an angle of attack of a rotor blade of a wind turbine and maintaining the angle of attack at a substantially constant value during rotation of the rotor blade in order to reduce the amplitude modulation of the noise generated by the wind turbine.Type: ApplicationFiled: July 5, 2011Publication date: February 2, 2012Applicant: GENERAL ELECTRIC COMPANYInventors: Kevin Wayne Kinzie, Benoit Petitjean, Roger Drobietz, Thomas Joseph Fischetti, Stefan Herr
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Patent number: 8013460Abstract: A method for controlling a tip speed of a blade of a wind turbine. The method includes determining the wind speed proximate the wind turbine; maintaining a first substantially constant rotational speed of the tip of the blade during variable wind speeds above a first predetermined nominal wind speed and below the second predetermined nominal wind speed; maintaining a second substantially constant rotational speed of the tip of the blade during variable wind speeds above a second predetermined nominal wind speed. The noise generated by wind at the second predetermined nominal wind speed is greater than noise generated by the blade at the second constant rotational speed of the tip of the blade.Type: GrantFiled: June 18, 2010Date of Patent: September 6, 2011Assignee: General Electric CompanyInventors: Kevin Kinzie, Stefan Herr, Benoit Petitjean
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Patent number: 7945350Abstract: A system and method for controlling noise generated from a wind turbine is disclosed. The method includes selectively adjusting the angle of pitch of the blade in response to an amount of noise generated being above a predetermined amount and maintaining the amount of noise generated at or below the predetermined amount of noise.Type: GrantFiled: July 7, 2009Date of Patent: May 17, 2011Assignee: General Electric CompanyInventors: Kevin Kinzie, Stefan Herr, Benoit Petitjean
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Patent number: 7902689Abstract: A method for controlling noise generated from a wind turbine. The method including providing a blade attached to a hub having a rotor shaft, and a generator in communication with the rotor shaft. The at least one blade includes an adjustable pitch angle. The method further includes providing a wind turbine acoustical profile and a wind turbine power profile. The wind turbine acoustical profile and the wind turbine power profile are compared to determine a noise reduced operational condition. The wind turbine is controlled to provide a rotor speed and the pitch angle of the blade corresponding to the noise reduced operational condition.Type: GrantFiled: July 7, 2009Date of Patent: March 8, 2011Assignee: General Electric CompanyInventors: Kevin Kinzie, Stefan Herr, Benoit Petitjean
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Publication number: 20110006527Abstract: A method for controlling a tip speed of a blade of a wind turbine. The method includes determining the wind speed proximate the wind turbine; maintaining a first substantially constant rotational speed of the tip of the blade during variable wind speeds above a first predetermined nominal wind speed and below the second predetermined nominal wind speed; maintaining a second substantially constant rotational speed of the tip of the blade during variable wind speeds above a second predetermined nominal wind speed. The noise generated by wind at the second predetermined nominal wind speed is greater than noise generated by the blade at the second constant rotational speed of the tip of the blade.Type: ApplicationFiled: June 18, 2010Publication date: January 13, 2011Applicant: GENERAL ELECTRIC COMPANYInventors: Kevin KINZIE, Stefan HERR, Benoit PETITJEAN
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Publication number: 20100252677Abstract: An aircraft includes a cabin in which at least part of the space is demarcated by trim panels and the cabin is provided with a system for the active control of ambient noise. Each trim panel is either an active panel including actuators powered by the active noise control system or a passive panel without such actuators. In addition, the trim panels of the cabin of the one type, either active or passive, are mechanically interchangeable with a panel of the other type, either passive or active, respectively. Power supply wiring for active panels is installed in the aircraft, this wiring being capable of powering all active panels which could be installed, whether said active panels are actually installed or whether interchangeable passive panels are installed. Finally, a power supply system for the active panels is installed in the aircraft and connected to the power supply wiring of the active panels.Type: ApplicationFiled: July 9, 2008Publication date: October 7, 2010Applicant: European Aeronautic Defence And Space Company EADS FranceInventor: Benoit Petitjean
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Patent number: 7763989Abstract: A method for controlling a tip speed of a blade of a wind turbine. The method includes determining the wind speed proximate the wind turbine; maintaining a first substantially constant rotational speed of the tip of the blade during variable wind speeds above a first predetermined nominal wind speed and below the second predetermined nominal wind speed; maintaining a second substantially constant rotational speed of the tip of the blade during variable wind speeds above a second predetermined nominal wind speed. The noise generated by wind at the second predetermined nominal wind speed is greater than noise generated by the blade at the second constant rotational speed of the tip of the blade.Type: GrantFiled: July 7, 2009Date of Patent: July 27, 2010Assignee: General Electric CompanyInventors: Kevin Kinzie, Stefan Herr, Benoit Petitjean
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Publication number: 20100133817Abstract: A method for controlling a tip speed of a blade of a wind turbine. The method includes determining the wind speed proximate the wind turbine; maintaining a first substantially constant rotational speed of the tip of the blade during variable wind speeds above a first predetermined nominal wind speed and below the second predetermined nominal wind speed; maintaining a second substantially constant rotational speed of the tip of the blade during variable wind speeds above a second predetermined nominal wind speed. The noise generated by wind at the second predetermined nominal wind speed is greater than noise generated by the blade at the second constant rotational speed of the tip of the blade.Type: ApplicationFiled: July 7, 2009Publication date: June 3, 2010Applicant: GENERAL ELECTRIC COMPANYInventors: Kevin Kinzie, Stefan Herr, Benoit Petitjean
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Publication number: 20100133818Abstract: A method for controlling noise generated from a wind turbine. The method including providing a blade attached to a hub having a rotor shaft, and a generator in communication with the rotor shaft. The at least one blade includes an adjustable pitch angle. The method further includes providing a wind turbine acoustical profile and a wind turbine power profile. The wind turbine acoustical profile and the wind turbine power profile are compared to determine a noise reduced operational condition. The wind turbine is controlled to provide a rotor speed and the pitch angle of the blade corresponding to the noise reduced operational condition.Type: ApplicationFiled: July 7, 2009Publication date: June 3, 2010Applicant: GENERAL ELECTRIC COMPANYInventors: Kevin Kinzie, Stefan Herr, Benoit Petitjean
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Publication number: 20100133819Abstract: A system and method for controlling noise generated from a wind turbine is disclosed. The method includes selectively adjusting the angle of pitch of the blade in response to an amount of noise generated being above a predetermined amount and maintaining the amount of noise generated at or below the predetermined amount of noise.Type: ApplicationFiled: July 7, 2009Publication date: June 3, 2010Applicant: GENERAL ELECTRIC COMPANYInventors: Kevin KINZIE, Stefan HERR, Benoit PETITJEAN
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Publication number: 20090232658Abstract: A blade for a wind turbine includes a body adapted for movement in response to wind flow past the blade body. The body has an inner surface defining an interior chamber and an opposite outer surface. At least one damping element extends from the inner surface of the body. The at least one damping element is configured to facilitate reducing an amount of noise generated by and propagating through the blade.Type: ApplicationFiled: March 17, 2008Publication date: September 17, 2009Inventors: Brandon Gerber, Nicholas K. Althoff, Benoit Petitjean