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公开(公告)号：US10161261B2
公开(公告)日：2018-12-25
申请号：US14763648
申请日：2013-02-14
Applicant: VESTAS WIND SYSTEMS A/S
Inventor： Saed Ehsani , Erik Carl Lehnskov Miranda , Ib Svend Olesen , Martin Møller Sørensen
Abstract: To identify abnormal behavior in a turbine blade, a failure detection system generates a “fingerprint” for each blade on a turbine. The fingerprint may be a grouping a dynamic, physical characteristics of the blade such as its mass, strain ratio, damping ratio, and the like. While the turbine is operating, the failure detection system receives updated sensor information that is used to determine the current characteristics of the blade. If the current characteristics deviate from the characteristics in the blade's fingerprint, the failure detection system may compare the characteristics of the blade that deviates from the fingerprint to characteristics of another blade on the turbine. If the current characteristics of the blade are different from the characteristics of the other blade, the failure detection system may change the operational mode of the turbine such as disconnecting the turbine from the utility grid or stopping the rotor.
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Patent Agency Ranking
公开(公告)号：US10359026B2
公开(公告)日：2019-07-23
申请号：US15761549
申请日：2016-09-20
Applicant: Vestas Wind Systems A/S
Abstract: A method and associated control arrangement are disclosed for controlling a de-rated power output of a wind turbine generator, where the wind turbine generator is associated with a predetermined power ramp rate upper limit and operating with a de-rated rotor speed. The method includes ramping the power output from an initial power level to a target power level during a ramping interval. During a first portion of the ramping interval, the power output is ramped at a first power ramp rate less than the power ramp rate upper limit. The method further includes ramping the rotor speed to a predetermined rotor speed value contemporaneously with ramping the power output during the first portion of the ramping interval. The first power ramp rate is determined such that a difference between the power output and the target power level is monotonically decreasing during the entirety of the ramping interval.
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公开(公告)号：US20190055924A1
公开(公告)日：2019-02-21
申请号：US15761549
申请日：2016-09-20
Applicant: Vestas Wind Systems A/S
CPC classification number: F03D7/0276 , F03D1/0675 , F03D7/0212 , F03D7/028 , F03D7/048 , F05B2270/1033 , F05B2270/309 , F05B2270/32 , F05B2270/327 , Y02E10/723
Abstract: A method and associated control arrangement are disclosed for controlling a de-rated power output of a wind turbine generator, where the wind turbine generator is associated with a predetermined power ramp rate upper limit and operating with a de-rated rotor speed. The method includes ramping the power output from an initial power level to a target power level during a ramping interval. During a first portion of the ramping interval, the power output is ramped at a first power ramp rate less than the power ramp rate upper limit. The method further includes ramping the rotor speed to a predetermined rotor speed value contemporaneously with ramping the power output during the first portion of the ramping interval. The first power ramp rate is determined such that a difference between the power output and the target power level is monotonically decreasing during the entirety of the ramping interval.
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公开(公告)号：US12135010B2
公开(公告)日：2024-11-05
申请号：US17632482
申请日：2020-07-07
Applicant: VESTAS WIND SYSTEMS A/S
Inventor： David Steele , Keld Hammerum , Rolf Kiilerich Andersen , Martin Møller Sørensen
Abstract: A method of providing safety configuration parameters for a wind turbine is provided. The method comprises receiving a safety configuration file at a location of the wind turbine, and comparing a turbine ID associated with the safety configuration file to a turbine ID of the wind turbine stored at the location of the wind turbine. A tamper check is performed on the safety configuration file to determine if data in the safety configuration file has been modified. If the turbine ID associated with the safety configuration file matches the turbine ID of the wind turbine, and if the tamper check determines that the data has not been modified, a safety configuration parameter associated with a safety system of the wind turbine is extracted from the file and stored.
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公开(公告)号：US12123396B2
公开(公告)日：2024-10-22
申请号：US17920675
申请日：2021-04-22
Applicant: VESTAS WIND SYSTEMS A/S
Inventor： Thorkild Møller Bertelsen , Morten Bagger Søgaard , Jesper Lykkegaard Neubauer , Tiago Telmo Pinto de Oliveira , Peter Fynbo , Martin Møller Sørensen , Carsten Krogh Nielsen , Asier Berra , Anders Hjarnø Jørgensen
IPC: F03D7/02
CPC classification number: F03D7/0204 , F03D7/0244 , F03D7/0248 , F05B2260/902 , F05B2270/602
Abstract: The invention relates to a method for controlling a wind turbine system, more particular for a controlled sliding strategy to lower loads on the yaw system by controlling mechanical brakes and motor brakes in the yaw drive actuators. When the yaw system being in the non-yawing operational state, and the mechanical brake(s) being in an engaged state, and the yaw controller determines or receives a signal indicative of a yaw moment, and if the signal indicative of a yaw moment is above a signal threshold, then the yaw controller sends a braking signal to the yaw drive actuators to enter the motors into the brake state to apply a braking torque.
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公开(公告)号：US10378513B2
公开(公告)日：2019-08-13
申请号：US14916618
申请日：2014-09-03
Applicant: VESTAS WIND SYSTEMS A/S
Inventor： Martin Ansbjerg Kjær , Peter Koldkjær , Rasmus Molgaard Hviid Knudsen , Maryam Soleimanzadeh , Martin Møller Sørensen , Ali Zaib , Arvishwa Kumar Singh , Poul Brandt Christensen , Michael Houlind Jensen
Abstract: To efficiently nm a wind turbine in varying wind speeds, the wind turbine may be configured to switch between two different electrical configurations that offer different efficiencies depending on wind speed. For example, a star configuration may be preferred during low wind speeds while a delta configuration is preferred for high wind speeds. Before switching, the power output by the turbine's generator may be driven to zero. Doing so, however, removes load from the rotor blades which cause the rotor speed to increase. Instead, the rotor speed may be controlled such that the speed stays at or above the speed of the rotor immediately before the generator power is ramped down. Maintaining rotor speed at or slightly above the current speed while switching between electrical configurations may mitigate the torque change experienced by the turbine and reduce the likelihood of structural failure.
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