Patents by Inventor Ole Mølgaard Jeppesen
Ole Mølgaard Jeppesen 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: 20230009729Abstract: A blade root cover segment suitable for fitting to a wind turbine blade to span a gap between the blade and a spinner cover. The blade root cover segment includes a first end and a second end and comprises: a curved flange for abutting against a correspondingly curved surface of the wind turbine blade; a cover wall extending radially from the flange; and a tensioning band associated with the flange. The tensioning band comprises a first end proximate to the first end of the blade root cover segment and a second end proximate to the second end of the blade root cover segment, and wherein the first end and the second end of the tensioning band include connection means for connecting with and applying tension between a like blade root collar segment. The invention also encompasses a blade root cover comprising a plurality of blade root cover segments. The invention also extends to a method of assembling a blade root cover from a plurality of blade root cover segments.Type: ApplicationFiled: December 4, 2020Publication date: January 12, 2023Inventors: Niels Martin Henriksen, Jan Kjærsgaard Petersen, Niels Thomas Bengtson, Ole Mølgaard Jeppesen, Jesper Horsager Nielsen
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Patent number: 9926908Abstract: The present invention relates to a hydraulic pitch system for pitching a blade of a wind turbine having a hub by means of a hydraulic fluid. The system comprises at least one hydraulic cylinder for adjusting a pitch angle of the blade, the hydraulic cylinder comprising a pitch piston movable in the hydraulic cylinder, and a first port and a second port arranged on each side of the pitch piston, and an accumulator hydraulically connected to the cylinder. The system further comprises a pitch safety system adapted to maintain the blade in a predetermined pitch angle when a person is entering the hub of the wind turbine for service and/or maintenance, the pitch safety system comprising a first valve which by activation releases a pressure in the hydraulic pitch system by draining off the accumulator for the hydraulic fluid until the pressure has reached a predetermined pressure level.Type: GrantFiled: November 28, 2012Date of Patent: March 27, 2018Assignee: Vestas Wind Systems A/SInventors: Jakob Hviid Nielsen, Soren Kjaer Nielsen, Ole Mølgaard Jeppesen, Jesper Lykkegaard Neubauer
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Patent number: 9631605Abstract: A pitch system (20) for rotating a blade (4) of a wind turbine relative to a hub (6) generally comprises a bearing (22) having an inner bearing ring (30) configured to be mounted to the hub and an outer bearing ring (32) configured to be mounted to the blade. A first coupling member (24) positioned between the hub and inner bearing ring extends radially inward. A second coupling member (26) positioned between the blade and outer bearing ring extends radially inward and over the inner bearing ring. A drive system (28) includes a first drive member (34) coupled to the first coupling member and a first driven member (36) coupled to the second coupling member. The first drive member is configured to move the first driven member to rotate the outer bearing ring relative to the inner bearing ring and thereby pitch the blade.Type: GrantFiled: November 25, 2011Date of Patent: April 25, 2017Assignee: Vestas Wind Systems A/SInventors: Jesper Lykkegaard Neubauer, Ole Mølgaard Jeppesen, Robert Rowntree, Leif Christoffersen, Peter Bøttcher, Gerry Madden
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Patent number: 9181982Abstract: A blade bearing for mounting a blade of a wind turbine to a hub of the wind turbine comprises inner and outer rings arranged next to each other. One of the inner and outer rings is configured to mount to the blade, and the other is configured to mount to the hub. At least two rows of rolling elements are positioned between the inner and outer rings. Upper and lower rows of the rolling elements are located in respective upper and lower planes. A support structure is secured to the inner ring and extends in a substantially radial direction between the upper and lower planes. The support structure has non-uniform stiffness characteristics in a circumferential direction. A method of manufacturing a blade bearing is also provided.Type: GrantFiled: December 20, 2012Date of Patent: November 10, 2015Assignee: Vestas Wind Systems A/SInventors: Peter Lindholst, Jesper Lykkegaard Neubauer, Ole Mølgaard Jeppesen, Torben Friis Baun
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Publication number: 20140355922Abstract: A blade bearing for mounting a blade of a wind turbine to a hub of the wind turbine comprises inner and outer rings arranged next to each other. One of the inner and outer rings is configured to mount to the blade, and the other is configured to mount to the hub. At least two rows of rolling elements are positioned between the inner and outer rings. Upper and lower rows of the rolling elements are located in respective upper and lower planes. A support structure is secured to the inner ring and extends in a substantially radial direction between the upper and lower planes. The support structure has non-uniform stiffness characteristics in a circumferential direction. A method of manufacturing a blade bearing is also provided.Type: ApplicationFiled: December 20, 2012Publication date: December 4, 2014Applicant: VESTAS WIND SYSTEMS A/SInventors: Peter Lindholst, Jesper Lykkegaard Neubauer, Ole Mølgaard Jeppesen, Torben Friis Baun
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Publication number: 20140328679Abstract: The present invention relates to a hydraulic pitch system for pitching a blade of a wind turbine having a hub by means of a hydraulic fluid. The system comprises at least one hydraulic cylinder for adjusting a pitch angle of the blade, the hydraulic cylinder comprising a pitch piston movable in the hydraulic cylinder, and a first port and a second port arranged on each side of the pitch piston, and an accumulator hydraulically connected to the cylinder. The system further comprises a pitch safety system adapted to maintain the blade in a predetermined pitch angle when a person is entering the hub of the wind turbine for service and/or maintenance, the pitch safety system comprising a first valve which by activation releases a pressure in the hydraulic pitch system by draining off the accumulator for the hydraulic fluid until the pressure has reached a predetermined pressure level.Type: ApplicationFiled: November 28, 2012Publication date: November 6, 2014Inventors: Jakob Hviid Nielsen, Soren Kjaer Nielsen, Ole Mølgaard Jeppesen, Jesper Lykkegaard Neubauer
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Publication number: 20140301847Abstract: A pitch system (20) for rotating a blade (4) of a wind turbine relative to a hub (6) generally comprises a bearing (22) having an inner bearing ring (30) configured to be mounted to the hub and an outer bearing ring (32) configured to be mounted to the blade. A first coupling member (24) positioned between the hub and inner bearing ring extends radially inward. A second coupling member (26) positioned between the blade and outer bearing ring extends radially inward and over the inner bearing ring. A drive system (28) includes a first drive member (34) coupled to the first coupling member and a first driven member (36) coupled to the second coupling member. The first drive member is configured to move the first driven member to rotate the outer bearing ring relative to the inner bearing ring and thereby pitch the blade.Type: ApplicationFiled: November 25, 2011Publication date: October 9, 2014Applicant: VESTAS WIND SYSTEMS A/SInventors: Jesper Lykkegaard Neubauer, Ole Mølgaard Jeppesen, Robert Rowntree, Leif Christoffersen, Peter Bøttcher, Gerry Madden
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Patent number: 8585363Abstract: A wind turbine (1) comprising equipment under control is presented, which comprises at least one control system (14, 14A, 14B) for one or more of said main components, (5, 7, 9) of the wind turbine. The control system (14A) is multiplied by at least one further control system (14B) for controlling the same of said equipment under control. A control arrangement, a method as well as uses hereof are also presented.Type: GrantFiled: December 30, 2004Date of Patent: November 19, 2013Assignee: Vestas Wind Systems A/SInventors: Ole Mølgaard Jeppesen, John Bengtson, Torben Møller Hansen
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Patent number: 8221076Abstract: A method of controlling at least one wind turbine blade during the stopping process of the rotor in a wind turbine system is disclosed. The method optimizes the control velocity of the process in response to one or more feedback values of the system and/or one or more feedback values from the surroundings of the system by altering the angular pitch velocity from 10°/sec during the initial stage of the stopping process to 5°/sec at the final stage of the stopping process. A control system and a wind turbine as well as use hereof are also disclosed.Type: GrantFiled: October 21, 2010Date of Patent: July 17, 2012Assignee: Vestas Wind Systems A/SInventors: Ole Mølgaard Jeppesen, John Bengtson, Torben Møller Hansen
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Patent number: 8123304Abstract: A hydraulic system and method for controlling the brake of a wind turbine are provided. During operation of the wind turbine, pressurized working fluid in the hydraulic system is blocked from being supplied to the brake. Even if some of this fluid does reach the brake, it is drained to prevent a pressure build-up and activation. To activate the brake, this drainage is stopped and the pressurized fluid is supplied to the brake. The blocking and unblocking the pressurized working fluid may be controlled by first and second activation valves arranged in parallel in a supply line that communicates the working fluid to the brake.Type: GrantFiled: June 16, 2010Date of Patent: February 28, 2012Assignee: Vestas Wind Systems A/SInventors: Carsten Roed, Ole Mølgaard Jeppesen, Keld Lyager Jensen, Claus Ahler
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Publication number: 20110158805Abstract: The present invention relates to a pitch control system for operating the blade pitch of the rotor blades of a wind turbine generator. A method is disclosed wherein a command signal or pitch demand is applied to the blade pitch system of the rotor blades and the resulting response signal or pitch response is received. The received pitch response is compared to a reference and a signal indicative of a pitch system fault may be generated if a difference between the response signal and the reference is detected as being larger than a preset criterion. The deviating behaviour of a blade pitch system can thereby be detected which enables a testing or monitoring of the condition of the pitch system of the rotor blades of a wind turbine generator.Type: ApplicationFiled: August 26, 2009Publication date: June 30, 2011Applicant: VESTAS WIND SYSTEMS A/SInventors: Erik Carl Lehnskov Miranda, Ole Mølgaard Jeppesen, Steen Morten Lauritsen
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Patent number: 7891944Abstract: A method of controlling at least one wind turbine blade during the stopping process of the rotor in a wind turbine system is disclosed. The method optimizes the control velocity of the process in response to one or more feedback values of the system and/or one or more feedback values from the surroundings of the system by altering the angular pitch velocity from 10°/sec during the initial stage of the stopping process to 5°/sec at the final stage of the stopping process. A control system and a wind turbine as well as use hereof are also disclosed.Type: GrantFiled: July 23, 2004Date of Patent: February 22, 2011Assignee: Vestas Wind Systems A/SInventors: Ole Mølgaard Jeppesen, John Bengtson, Torben Møller Hansen
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Publication number: 20110040413Abstract: A method of controlling at least one wind turbine blade during the stopping process of the rotor in a wind turbine system is disclosed. The method optimizes the control velocity of the process in response to one or more feedback values of the system and/or one or more feedback values from the surroundings of the system by altering the angular pitch velocity from 10°/sec during the initial stage of the stopping process to 5°/sec at the final stage of the stopping process. A control system and a wind turbine as well as use hereof are also disclosed.Type: ApplicationFiled: October 21, 2010Publication date: February 17, 2011Inventors: Ole Mølgaard Jeppesen, John Bengtson, Torben Møller Hansen
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Publication number: 20110014048Abstract: A hydraulic system and method for controlling the brake of a wind turbine are provided. During operation of the wind turbine, pressurized working fluid in the hydraulic system is blocked from being supplied to the brake. Even if some of this fluid does reach the brake, it is drained to prevent a pressure build-up and activation. To activate the brake, this drainage is stopped and the pressurized fluid is supplied to the brake. The blocking and unblocking the pressurized working fluid may be controlled by first and second activation valves arranged in parallel in a supply line that communicates the working fluid to the brake.Type: ApplicationFiled: June 16, 2010Publication date: January 20, 2011Applicant: VESTAS WIND SYSTEMS A/SInventors: Carsten Roed, Ole Mølgaard Jeppesen, Keld Lyager Jensen, Claus Ahler