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公开(公告)号：US11905927B2
公开(公告)日：2024-02-20
申请号：US17914900
申请日：2021-04-12
Applicant: Vestas Wind Systems A/S
Inventor： Frank Møller Hansen
CPC classification number: F03D17/00 , F03D7/0224 , F05B2270/328 , F05B2270/331
Abstract: Systems, methods, and computer program products for monitoring a wind turbine (10). The system receives a signal (426) indicative of a pitch force being applied to a blade (20) of a wind turbine (10). The signal (426) is sampled to generate a discrete time-domain signal (426) including a plurality of pitch force samples. Samples are selected for analysis using a sampling window (326) that excludes samples obtained under operating conditions determined to be detrimental to obtaining good data. The selected samples are processed to generate a spectral density (150) of the signal (426), and the frequency content of the spectral density (150) analysed to determine the condition of one or more components of the wind turbine (10). If the analysis indicates that a component of the wind turbine (10) needs attention, the system generates an alarm.
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Patent Agency Ranking
公开(公告)号：US11208983B2
公开(公告)日：2021-12-28
申请号：US16068793
申请日：2017-01-05
Applicant: Vestas Wind Systems A/S
Inventor： Simon Kabus , Jacob Hviid Nielsen , Jesper Lykkegaard Neubauer , Erik Garde , Lasse Køgs Andersen , Frank Møller Hansen
Abstract: Wind turbine pitch actuator mounting structure A mounting structure is described for attaching a pitch actuator to a hub of a wind turbine. The mounting structure has one or more legs each having a proximal end and a distal end, and a flexible intermediate portion between the proximal and distal ends. The mounting structure further comprises an actuator attachment portion for attaching to a wind turbine blade pitch actuator. The actuator attachment portion is arranged at the distal end(s) of the one or more legs. The proximal end(s) of the one or more legs are configured for attachment to a wind turbine hub. The flexible intermediate portion(s) of the one or more legs are configured to flex in use to absorb loads acting on the pitch actuator. The mounting structure therefore allows the pitch actuator to pivot in a first plane by virtue of the flexible legs. The pitch actuator may be attached to the mounting structure via pivot bearings arranged to allow the pitch actuator to pivot in a second plane, substantially perpendicular to the first plane.
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公开(公告)号：US20190078555A1
公开(公告)日：2019-03-14
申请号：US15767258
申请日：2016-10-11
Applicant: Vestas Wind Systems A/S
Inventor： Martin Ansbjerg Kjær , Frank Møller Hansen , Jacob Hviid Nielsen , Jesper Lykkegaard Neubauer , Poul Brandt Christensen , Fabio Caponetti , Christian Skallebæk , Robert Grøn-Stevens , Kasper Zinck Østergaard
IPC: F03D7/02
Abstract: There is provided a method for controlling a hydraulic pitch force system (220) so as to reduce or eliminate a decrease in hydraulic oil pressure (241) if a hydraulic system parameter value is outside a hydraulic system parameter range, the method comprising: Obtaining (690) the hydraulic system parameter value, and operating the hydraulic pitch force system (220) according to a reduced mode (692) if the hydraulic system parameter value is outside the hydraulic system parameter range, wherein in the reduced mode one or more pitch based activities are reduced (694) or suspended. An advantage thereof may be that it enables keeping the wind turbine in production in certain instances rather than shutting down the wind turbine. In aspects, there is furthermore presented a computer program product, a pitch control system (250) and a wind turbine (100).
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公开(公告)号：US20230129895A1
公开(公告)日：2023-04-27
申请号：US17914900
申请日：2021-04-12
Applicant: Vestas Wind Systems A/S
Inventor： Frank Møller Hansen
Abstract: Systems, methods, and computer program products for monitoring a wind turbine (10). The system receives a signal (426) indicative of a pitch force being applied to a blade (20) of a wind turbine (10). The signal (426) is sampled to generate a discrete time-domain signal (426) including a plurality of pitch force samples. Samples are selected for analysis using a sampling window (326) that excludes samples obtained under operating conditions determined to be detrimental to obtaining good data. The selected samples are processed to generate a spectral density (150) of the signal (426), and the frequency content of the spectral density (150) analysed to determine the condition of one or more components of the wind turbine (10). If the analysis indicates that a component of the wind turbine (10) needs attention, the system generates an alarm.
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公开(公告)号：US20210207574A1
公开(公告)日：2021-07-08
申请号：US16068793
申请日：2017-01-05
Applicant: Vestas Wind Systems A/S
Inventor： Simon Kabus , Jacob Hviid Nielsen , Jesper Lykkegaard Neubauer , Erik Garde , Lasse Køgs Andersen , Frank Møller Hansen
Abstract: Wind turbine pitch actuator mounting structure A mounting structure is described for attaching a pitch actuator to a hub of a wind turbine. The mounting structure has one or more legs each having a proximal end and a distal end, and a flexible intermediate portion between the proximal and distal ends. The mounting structure further comprises an actuator attachment portion for attaching to a wind turbine blade pitch actuator. The actuator attachment portion is arranged at the distal end(s) of the one or more legs. The proximal end(s) of the one or more legs are configured for attachment to a wind turbine hub. The flexible intermediate portion(s) of the one or more legs are configured to flex in use to absorb loads acting on the pitch actuator. The mounting structure therefore allows the pitch actuator to pivot in a first plane by virtue of the flexible legs. The pitch actuator may be attached to the mounting structure via pivot bearings arranged to allow the pitch actuator to pivot in a second plane, substantially perpendicular to the first plane.
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公开(公告)号：US10920747B2
公开(公告)日：2021-02-16
申请号：US15767258
申请日：2016-10-11
Applicant: Vestas Wind Systems A/S
Inventor： Martin Ansbjerg Kjær , Frank Møller Hansen , Jacob Hviid Nielsen , Jesper Lykkegaard Neubauer , Poul Brandt Christensen , Fabio Caponetti , Christian Skallebæk , Robert Grøn-Stevens , Kasper Zinck Østergaard
IPC: F03D7/02
Abstract: There is provided a method for controlling a hydraulic pitch force system (220) so as to reduce or eliminate a decrease in hydraulic oil pressure (241) if a hydraulic system parameter value is outside a hydraulic system parameter range, the method comprising: Obtaining (690) the hydraulic system parameter value, and operating the hydraulic pitch force system (220) according to a reduced mode (692) if the hydraulic system parameter value is outside the hydraulic system parameter range, wherein in the reduced mode one or more pitch based activities are reduced (694) or suspended. An advantage thereof may be that it enables keeping the wind turbine in production in certain instances rather than shutting down the wind turbine. In aspects, there is furthermore presented a computer program product, a pitch control system (250) and a wind turbine (100).
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