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公开(公告)号：WO2021104589A1
公开(公告)日：2021-06-03
申请号：PCT/DK2020/050325
申请日：2020-11-24
Applicant: VESTAS WIND SYSTEMS A/S
IPC: F03D7/04
Abstract: A method of controlling a wind turbine is provided, comprising identifying an out-of-vertical load acting in a first direction on the wind turbine. A direction of a wind load acting on the wind turbine is determined. If there is a degree of alignment between the direction of the wind load and the first direction, the wind turbine is controlled to reduce the wind load.
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公开(公告)号：WO2019214785A1
公开(公告)日：2019-11-14
申请号：PCT/DK2019/050134
申请日：2019-05-02
Applicant: VESTAS WIND SYSTEMS A/S
Inventor： VESTERGAARD, Jakob , NIELSEN, Anders Steen , MURCIA, Juan Pablo
Abstract: A method of operating a wind turbine. The wind turbine is operated over an operating period in accordance with a control strategy. A sensor signal is received over the operating period from a sensor measuring an operational parameter of the turbine. A model is used to obtain a modelled fatigue value based on the sensor signal. The modelled fatigue value provides an estimate of fatigue loading applied to a component of the turbine over the operating period. The control strategy is modified based on the modelled fatigue value.
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公开(公告)号：WO2019137590A1
公开(公告)日：2019-07-18
申请号：PCT/DK2019/050005
申请日：2019-01-08
Applicant: VESTAS WIND SYSTEMS A/S
Inventor： GRUNNET, Jacob Deleuran , NIELSEN, Anders Steen
CPC classification number: F03D7/048 , F03D7/0292 , F05B2270/1033 , F05B2270/332
Abstract: A method for controlling a wind energy farm is disclosed. A wake state of the wind energy farm is determined, including determining wake chains defining wake relationships among the wind turbines (1) of the wind farm under the current wind conditions. For at least one of the wind turbines (1) of the wind energy farm, a lifetime usage is estimated, based on an accumulated load measure for the wind turbine (1). In the case that the estimated lifetime usage is below a predefined lifetime usage limit, the wind turbine (1) is operated in an overrated state, while monitoring wake effects at each of the wind turbines (1). In the case that a downstream wind turbine (1) detects wake effects above a predefined wake threshold level, at least one wind turbine (1) having an upstream wake relationship with the downstream wind turbine (1) is requested to decrease the generated wake, e.g. by decreasing power production.
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公开(公告)号：WO2021115542A1
公开(公告)日：2021-06-17
申请号：PCT/DK2020/050341
申请日：2020-12-01
Applicant: VESTAS WIND SYSTEMS A/S
Inventor： NIELSEN, Anders Steen , SØRENSEN, Søren Hove
IPC: F03D13/10
Abstract: A method for planning repowering of a wind energy plant (4) is disclosed. The wind energy plant (4) is positioned at a site and comprises a plurality of original wind turbines (5) arranged at distributed positions within the site. Historical data related to the original wind turbines (5) is retrieved. The historical data is collected over a previous time period and during operation of the original wind turbines (5). Meteorological conditions (2) at the site of the wind energy plant (4) are estimated based on the retrieved historical data. The repowering of the wind energy plant (4) is planned based on the estimated meteorological data (2), including planning replacement of the original wind turbines (5) by replacement wind turbines to be positioned at the positions of the original wind turbines (5).
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公开(公告)号：WO2019086092A8
公开(公告)日：2019-05-09
申请号：PCT/DK2018/050282
申请日：2018-11-05
Applicant: VESTAS WIND SYSTEMS A/S
Inventor： BACHMANN, Thomas Hedegaard , NIELSEN, Anders Steen
IPC: F03D7/02
Abstract: A method of controlling a wind turbine for the avoidance of edgewise vibrations. The method comprises the steps of determining a whirling mode frequency of a rotor blade of the wind turbine; determining an avoidance zone based on the whirling mode frequency, the avoidance zone being a rotor speed range; receiving a rotor speed setpoint; and either adjusting the rotor speed to a value outside the rotor speed range if the rotor speed setpoint is within the rotor speed range or adjusting the rotor speed to a value corresponding to the rotor speed setpoint if the rotor speed setpoint is outside the rotor speed range.
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Patent Agency Ranking6.发明申请
公开(公告)号：WO2020078518A1
公开(公告)日：2020-04-23
申请号：PCT/DK2019/050297
申请日：2019-10-09
Applicant: VESTAS WIND SYSTEMS A/S
Inventor： NIELSEN, Anders Steen , SØRENSEN, Søren Hove , HOVGAARD, Tobias Gybel
IPC: F03D7/02
Abstract: The present disclosure relates to controlling an operation of a wind turbine. A first plurality of extreme load measures indicative of extreme loads experienced by at least part of the wind turbine during the first period of time are determined and a load probability characteristic is then determined based on a statistical analysis of the distribution of the first plurality of extreme load measures. A control strategy for controlling the operation of the wind turbine is then modified based at least in part on a comparison of the load probability characteristic and a design load limit and the wind turbine is then subsequently controlled in accordance with the modified control strategy for a second period of time.
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公开(公告)号：WO2019154470A1
公开(公告)日：2019-08-15
申请号：PCT/DK2019/050042
申请日：2019-02-04
Applicant: VESTAS WIND SYSTEMS A/S
Inventor： BACHMANN, Thomas Hedegaard , NIELSEN, Anders Steen
IPC: F03D7/02
CPC classification number: F03D7/0296 , F03D7/0276 , F05B2270/327 , F05B2270/334 , F05B2270/802
Abstract: A method of controlling a wind turbine for the avoidance of edgewise vibrations. The method comprises the steps of determining a whirling mode frequency of a rotor blade of the wind turbine; determining a rotational frequency of the rotor blade corresponding to the speed of the rotor blade; determining a threshold value for the whirling mode frequency based on the rotational frequency; and, reducing the speed of the rotor blade if the whirling mode frequency substantially equals or is less than the threshold value.
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公开(公告)号：WO2019086092A1
公开(公告)日：2019-05-09
申请号：PCT/DK2018/050282
申请日：2018-11-05
Applicant: VESTAS WIND SYSTEMS A/S
Inventor： BACHMANN, Thomas Hedegaard , NIELSEN, Anders Steen
IPC: F03D7/02
CPC classification number: F03D7/0296 , F03D7/0276 , F05B2270/327 , F05B2270/334
Abstract: 20 ABSTRACT METHOD AND SYSTEM FOR CONTROLLING A WIND TURBINE TO MANAGE EDGEWISE BLADE VIBRATIONS 5 A method of controlling a wind turbine for the avoidance of edgewise vibrations. The method comprises the steps of determining a whirling mode frequency of a rotor blade of the wind turbine; determining an avoidance zone based on the whirling mode frequency, the avoidance zone being a rotor speed range; receiving a rotor speed setpoint; and 10 either adjusting the rotor speed to a value outside the rotor speed range if the rotor speed setpoint is within the rotor speed range or adjusting the rotor speed to a value corresponding to the rotor speed setpoint if the rotor speed setpoint is outside the rotor speed range. 15 [Figure 8]
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公开(公告)号：EP3677772A1
公开(公告)日：2020-07-08
申请号：EP19217057.9
申请日：2019-12-17
Applicant: VESTAS WIND SYSTEMS A/S
Inventor： NIELSEN, Anders Steen , ZINCK, Kasper , SEKARAN, Gnana
Abstract: A method of operating a wind turbine having a rotor. Sensor data is received from one or more sensors of the wind turbine and maximum load values are obtained on the basis of the sensor data. The maximum load values are indicative of maximum loads acting on a component of the wind turbine such as a rotor blade. An estimated extreme load value, such as a 50-year return load, is obtained on the basis of the maximum load values and compared with a reference value. A maximum thrust limit is set on the basis of the comparison, and the wind turbine is operated in accordance with the maximum thrust limit so that a wind thrust force acting on the rotor does not exceed the maximum thrust limit.
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公开(公告)号：EP4065837A1
公开(公告)日：2022-10-05
申请号：EP20816404.6
申请日：2020-11-24
Applicant: VESTAS WIND SYSTEMS A/S
IPC: F03D7/04
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