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公开(公告)号：US12078150B2
公开(公告)日：2024-09-03
申请号：US17766983
申请日：2020-10-09
CPC分类号： F03D7/026 , F03D7/046 , F05B2270/3202
摘要： A method of transitioning a wind turbine from a sleep state is provided in which a wind speed at the wind turbine is measured, and the measured wind speed is compared to a wake-up threshold. If the wind speed exceeds the wake-up threshold, the wind turbine is transitioned to an active state. Before comparing, either the measured wind speed or the wake-up threshold is adjusted based on an outcome of at least one previous transition from the sleep state of the wind turbine.
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公开(公告)号：US11952985B2
公开(公告)日：2024-04-09
申请号：US18326978
申请日：2023-05-31
发明人： Pradeep Bosukonda , Johnny Nielsen , Tobias Rossel
CPC分类号： F03D80/40 , F03D7/0264 , F03D7/048 , F03D17/00 , F05B2260/80 , F05B2270/20
摘要： A method for operating a cluster of a plurality of wind turbines is disclosed. For each of the wind turbines, one or more parameter values of a parameter being indicative for a condition occurring at the wind turbine are derived, based the measurements obtained by the wind turbine. In the case that a derived parameter value for a specific wind turbine exceeds a trigger value, measures for mitigating an effect of the condition at the specific wind turbine are initiated. The derived parameter values for the wind turbines of the cluster of wind turbines are compared to an expected distribution of the parameter values. In the case that a distribution of the derived parameter values differs from the expected distribution of the parameter values, the trigger value is adjusted, and the adjusted trigger value is subsequently applied when comparing the derived parameter values to the trigger value.
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公开(公告)号：US11181096B2
公开(公告)日：2021-11-23
申请号：US16063427
申请日：2016-12-22
发明人： Johnny Nielsen
摘要： Controlling a wind turbine comprising a wind direction sensor, a yawing system, and a control system for turning the wind turbine rotor relative to the wind. Over one or more time intervals a data set comprising a direction of the wind relative to the wind turbine as measured by the wind direction sensor and a wind power parameter determined as one of a power, a torque, or a blade load of the wind turbine are obtained. The data sets are sorted into a number of bins of different intervals of wind power parameter. or each power bin, a statistical representation of the wind power parameter as a function of the relative wind direction is determined and then used in estimating a wind direction offset corresponding to the relative wind direction where the wind power parameter attains a peak value. The relative wind direction is then adjusted as a function of the set of wind direction offsets to yield more accurate wind direction data which can be used in controlling the turbine.
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公开(公告)号：US10934998B2
公开(公告)日：2021-03-02
申请号：US16068030
申请日：2017-01-10
发明人： Lars Glavind , Kristian Kiib , Ib Svend Olesen , Johnny Nielsen
摘要： A yaw sensor for a wind turbine is described. The yaw sensor comprises a rotary switch, configured to be coupled to a yaw drive gearbox of a wind turbine nacelle, the rotary switch being operable to activate and deactivate an electrical contact in dependence on an amount of yaw rotation of the nacelle relative to a start position. The electrical contact is active at a plurality of first yaw rotation ranges with respect to the start position, and inactive at a plurality of second yaw rotation ranges with respect to the start position, the first and second yaw rotation ranges being interleaved, at least some of the first yaw rotation ranges having different lengths from each other and/or at least some of the second yaw rotation ranges having different lengths from each other. The electrical contact generates an electrical signal when active.
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公开(公告)号：US10344740B2
公开(公告)日：2019-07-09
申请号：US15269839
申请日：2016-09-19
发明人： Fabio Caponetti , Per Brath , Keld Hammerum , Johnny Nielsen
摘要： A method of detecting a fault mode of a sensor is provided. The sensor may be, for example, a bending moment sensor and may sense a bending moment of a blade on a wind turbine generator (WTG). The method includes comparing data output by a first sensor with reference data indicating what is expected to be output by the first sensor to produce a first comparison result and comparing data output by the first sensor with data output by a second sensor to produce a second comparison result. A determination of whether the first sensor has entered a fault mode is made based at least in part on the first and second comparison results.
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公开(公告)号：US12000379B2
公开(公告)日：2024-06-04
申请号：US18006092
申请日：2021-07-01
发明人： Dan Hilton , Johnny Nielsen
CPC分类号： F03D17/00 , F03D1/02 , F03D7/0204 , F05B2270/328 , F05B2270/329 , F05B2270/331
摘要： A wind turbine system comprising: a wind turbine; and a monitoring system, wherein the wind turbine comprises: a tower; an arm extending from the tower, a rotor-nacelle assembly (RNA) carried by the arm; and a Global Navigation Satellite System (GNSS) sensor carried by the arm or the RNA. The monitoring system is configured to receive position data from the GNSS sensor and obtain a moment or force measurement on the basis of the position data.
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公开(公告)号：US20230272777A1
公开(公告)日：2023-08-31
申请号：US18006092
申请日：2021-07-01
发明人： Dan Hilton , Johnny Nielsen
CPC分类号： F03D17/00 , F03D7/0204 , F03D1/02 , F05B2270/328 , F05B2270/329 , F05B2270/331
摘要： A wind turbine system comprising: a wind turbine; and a monitoring system, wherein the wind turbine comprises: a tower; an arm extending from the tower, a rotor-nacelle assembly (RNA) carried by the arm; and a Global Navigation Satellite System (GNSS) sensor carried by the arm or the RNA. The monitoring system is configured to receive position data from the GNSS sensor and obtain a moment or force measurement on the basis of the position data.
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8.发明授权公开(公告)号：US11415110B2
公开(公告)日：2022-08-16
申请号：US17254800
申请日：2019-06-20
摘要： A wind turbine blade is provided comprising a main blade portion and a light detection and ranging (LIDAR) element. The main blade portion has a shell defining an outer aerodynamic surface of the blade. The LIDAR element is disposed within a volume bounded by the outer aerodynamic surface and comprises at least one LIDAR system configured to transmit light beams away from the blade and to detect reflected light beams incident upon the blade.
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公开(公告)号：US11384738B2
公开(公告)日：2022-07-12
申请号：US16957096
申请日：2018-12-11
摘要： Embodiments herein describe a method and associated controller for a wind turbine. The method comprises determining one or more characteristics of a sensor signal received from a mechanical sensor of the wind turbine; determining, based on the one or more characteristics of the sensor signal, an icing condition of the wind turbine; and controlling operation of one or more wind turbine systems based on the determined icing condition.
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公开(公告)号：US11078884B2
公开(公告)日：2021-08-03
申请号：US16314000
申请日：2017-06-29
发明人： Johnny Nielsen
摘要： A wind turbine includes a wind direction sensor, a yawing system, and a control system for yawing the wind turbine rotor relative to the wind. The control system measures a wind direction parameter by the wind direction sensor Over time a group of data sets is obtained and a wind direction offset is determined from the group of data sets which is used to adjust the wind direction parameter. The adjusted wind direction parameter is then used in the controlling of the wind turbine.
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