Patents by Inventor André Riesberg
André Riesberg 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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Patent number: 8588987Abstract: A wind farm includes a plurality of wind energy installations, a transfer point at which electrical energy produced by the wind energy installations is transferred to a public electricity grid system and for which nominal values are preset, and a measurement sensor configured to measure electrical actual values at the transfer point. The wind farm also includes a master regulator associated with an upper control level and configured to use upper nominal values and upper actual values at the upper control level to determine a preset for a lower control level, and a plurality of submaster regulators associated with the lower control level and configured to use the preset as a lower nominal value and, on the basis of the lower nominal value and a lower actual value, determine presets for the wind energy installations. A high level of control accuracy can thus be achieved even in large wind farms.Type: GrantFiled: June 25, 2010Date of Patent: November 19, 2013Assignee: REpower Systems SEInventors: André Riesberg, Henning Rademacher, Hennig Harden, Guntram Kunft
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Publication number: 20110291853Abstract: The method for initiating of shutting down a wind energy turbine comprises approaching the wind energy turbine by a vehicle like an aircraft, in particular a helicopter, a car or a boat, and initiating of shutting down the wind energy turbine by means of wireless remote command signal transmitted from the vehicle when the vehicle is spaced from the wind energy turbine by a predetermined distance. The wind energy turbine comprises a rotor having at least one rotor blade, a shut down control unit for shutting down the rotor, and a receiving unit operatively connected to the shut down control unit for receiving a wireless remote shut down command signal from a helicopter being spaced from the rotor a predetermined distance.Type: ApplicationFiled: June 11, 2003Publication date: December 1, 2011Inventors: André Riesberg, Markus Altenschulte
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Patent number: 8032614Abstract: A method for automatically configuring a local network in a windfarm is provided, the method including the steps of (a) automatically assigning an IP address to a device connected to the local windfarm network, (b) automatically receiving an identifier tag from the device, and (c) relating the automatically assigned IP address of the device to a specific wind turbine in the windfarm which is identified by said identifier tag.Type: GrantFiled: April 30, 2006Date of Patent: October 4, 2011Assignee: General Electric CompanyInventors: André Riesberg, Anke Eggengoor
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Patent number: 7883317Abstract: A method for optimizing the operation of a wind turbine is provided, the method comprising the steps of: (a) adjusting at least one control parameter of said wind turbine to a predetermined starting value; (b) measuring at least one response variable of said wind turbine and at least one further variable indicative of an ambient condition of the wind turbine; (c) repeating step (b) N times, wherein N is a predetermined integer, wherein said at least one control parameter is varied at each repetition; (d) determining a measured relation between the at least one control parameter with respect to the at least one response variable and the at least one further variable indicative of an ambient condition; (e) determining an optimized value of said at least one control parameter with respect to said response variable from said measured relation; (f) adjusting a set point of said at least one control parameter to said optimized value.Type: GrantFiled: February 2, 2007Date of Patent: February 8, 2011Assignee: General Electric CompanyInventors: Frank Theodoor Ormel, Till Hoffmann, Henk-Jan Kooijman, André Riesberg, Jean Louis Wesselink
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Publication number: 20100332042Abstract: A wind farm includes a plurality of wind energy installations, a transfer point at which electrical energy produced by the wind energy installations is transferred to a public electricity grid system and for which nominal values are preset, and a measurement sensor configured to measure electrical actual values at the transfer point. The wind farm also includes a master regulator associated with an upper control level and configured to use upper nominal values and upper actual values at the upper control level to determine a preset for a lower control level, and a plurality of submaster regulators associated with the lower control level and configured to use the preset as a lower nominal value and, on the basis of the lower nominal value and a lower actual value, determine presets for the wind energy installations. A high level of control accuracy can thus be achieved even in large wind farms.Type: ApplicationFiled: June 25, 2010Publication date: December 30, 2010Applicant: REpower Systems AGInventors: André Riesberg, Hennig Rademacher, Hennig Harden, Guntram Kunft
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Patent number: 7656135Abstract: A wind turbine generator includes at least one rotating member, at least one stationary member, and a clearance gap control system. The stationary member is positioned such that a clearance gap is defined between a portion of the rotating member and a portion of the stationary member. The clearance gap is configured to facilitate transmitting a controllable magnetic flux therethrough. The control system includes at least one clearance gap measurement assembly, at least one power converter, and at least one controller. The controller is coupled in electronic data communication with the assembly and the converter and is configured to modulate a dimension of the gap by modulating the flux.Type: GrantFiled: January 5, 2007Date of Patent: February 2, 2010Assignee: General Electric CompanyInventors: Christian Schram, Henning Luetze, Andreas Buecker, Andre Riesberg, Robert William Delmerico
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Method for controlling a wind energy turbine of a wind park comprising multiple wind energy turbines
Patent number: 7437216Abstract: The method for controlling a first wind energy turbine of a wind park comprising multiple wind energy turbines connected to the grid, in situations where the first energy turbine operates substantially at zero energy output level, comprises the steps of determining whether at least one of the other wind energy turbines of the wind park is operated above a predetermined energy output level, and if at least one of the other wind energy turbines of the wind park is operated above the predetermined energy output level, maintaining connection of the first wind energy turbine to the grid.Type: GrantFiled: September 28, 2006Date of Patent: October 14, 2008Assignee: General Electric CompanyInventors: Andre Riesberg, Florian Krug, Christian Schram, Christian Eisenhut -
Publication number: 20080164697Abstract: A wind turbine generator includes at least one rotating member, at least one stationary member, and a clearance gap control system. The stationary member is positioned such that a clearance gap is defined between a portion of the rotating member and a portion of the stationary member. The clearance gap is configured to facilitate transmitting a controllable magnetic flux therethrough. The control system includes at least one clearance gap measurement assembly, at least one power converter, and at least one controller. The controller is coupled in electronic data communication with the assembly and the converter and is configured to modulate a dimension of the gap by modulating the flux.Type: ApplicationFiled: January 5, 2007Publication date: July 10, 2008Inventors: Christian Schram, Henning Luetze, Andreas Buecker, Andre Riesberg, Robert William Delmerico
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Patent number: 7348683Abstract: A the rotor for a wind energy turbine includes a hub and at least one rotor blade connected to the hub. The rotor also includes comprises at least one sensor for sensing at least one physical value of the rotor, e.g. mechanical stress, and a power supply for supplying electrical power to the at least one sensor. The power supply includes an electromechanical converter for converting mechanical energy from vibrations of the rotor when subjected to wind loads, e.g. during operation of the wind energy turbine, into electrical energy for supplying to the at least one sensor.Type: GrantFiled: November 17, 2005Date of Patent: March 25, 2008Assignee: General Electric CompanyInventor: André Riesberg
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Publication number: 20070255832Abstract: A method for automatically configuring a local network in a windfarm is provided, the method including the steps of (a) automatically assigning an IP address to a device connected to the local windfarm network, (b) automatically receiving an identifier tag from the device, and (c) relating the automatically assigned IP address of the device to a specific wind turbine in the windfarm which is identified by said identifier tag.Type: ApplicationFiled: April 30, 2006Publication date: November 1, 2007Inventors: Andre Riesberg, Anke Eggengoor
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Publication number: 20070183885Abstract: A method for optimizing the operation of a wind turbine is provided, the method comprising the steps of: (a) adjusting at least one control parameter of said wind turbine to a predetermined starting value; (b) measuring at least one response variable of said wind turbine and at least one further variable indicative of an ambient condition of the wind turbine; (c) repeating step (b) N times, wherein N is a predetermined integer, wherein said at least one control parameter is varied at each repetition; (d) determining a measured relation between the at least one control parameter with respect to the at least one response variable and the at least one further variable indicative of an ambient condition; (e) determining an optimized value of said at least one control parameter with respect to said response variable from said measured relation; (f) adjusting a set point of said at least one control parameter to said optimized value.Type: ApplicationFiled: February 2, 2007Publication date: August 9, 2007Inventors: Frank Theodoor Ormel, Till Hoffmann, Henk-Jan Kooijman, Andre Riesberg, Jean Louis Wesselink
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Publication number: 20070114799Abstract: A method for damping a displacement of a wind turbine tower includes controlling a frequency of oscillation of the wind turbine tower by coupling one of a first beam and a water tank to a plurality of surfaces inside the wind turbine tower.Type: ApplicationFiled: November 18, 2005Publication date: May 24, 2007Inventors: Andre Riesberg, Christian Schram, Mathias Gurk, Holger Luehn
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Publication number: 20070108770Abstract: A the rotor for a wind energy turbine includes a hub and at least one rotor blade connected to the hub. The rotor also includes comprises at least one sensor for sensing at least one physical value of the rotor, e.g. mechanical stress, and a power supply for supplying electrical power to the at least one sensor. The power supply includes an electromechanical converter for converting mechanical energy from vibrations of the rotor when subjected to wind loads, e.g. during operation of the wind energy turbine, into electrical energy for supplying to the at least one sensor.Type: ApplicationFiled: November 17, 2005Publication date: May 17, 2007Inventor: Andre Riesberg
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Method for Controlling a Wind Energy Turbine of a Wind Park comprising Multiple Wind Energy Turbines
Publication number: 20070078567Abstract: The method for controlling a first wind energy turbine of a wind park comprising multiple wind energy turbines connected to the grid, in situations where the first energy turbine operates substantially at zero energy output level, comprises the steps of determining whether at least one of the other wind energy turbines of the wind park is operated above a predetermined energy output level, and if at least one of the other wind energy turbines of the wind park is operated above the predetermined energy output level, maintaining connection of the first wind energy turbine to the grid.Type: ApplicationFiled: September 28, 2006Publication date: April 5, 2007Inventors: Andre Riesberg, Florian Krug, Christian Schram, Christian Eisenhut -
Patent number: 6783326Abstract: Two independent adjusting systems are recommended for each rotor blade (6) for blade angle adjustments of the rotor blades (6) of the rotor of a wind power plant, assuring full redundancy of the blade angle adjustment. By suitable control of the individual adjustment paths of the two adjustments systems, additional advantageous effects can be gained, such as good lubricant distribution and/or even load distribution over time (FIG. 1).Type: GrantFiled: August 20, 2002Date of Patent: August 31, 2004Assignee: General Electric CompanyInventors: Roland Weitkamp, Henning Lütze, André Riesberg, Jochen Anemüller
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Publication number: 20030116970Abstract: Two independent adjusting systems are recommended for each rotor blade (6) for blade angle adjustment of the rotor blades (6) of the rotor of a wind power plant, assuring full redundancy of the blade angle adjustment. By suitable control of the individual adjustment paths of the two adjustment systems, additional advantageous effects can be gained, such as good lubricant distribution and/or even load distribution over time (FIG. 1).Type: ApplicationFiled: August 20, 2002Publication date: June 26, 2003Inventors: Roland Weitkamp, Henning Lutze, Andre Riesberg, Jochen Anemuller