-
公开(公告)号：US12247547B2
公开(公告)日：2025-03-11
申请号：US18686367
申请日：2022-08-25
Applicant: VESTAS WIND SYSTEMS A/S
Inventor： Goncalo Artur Duarte Pereira , Jens Van Schelve , Johnny Nielsen
IPC: F03D17/00
Abstract: The invention provides a method of identifying recurrent free-flow wind disturbances associated with a wind turbine. The method comprises monitoring a signal indicative of a parameter associated with operation of the wind turbine, determining an expected signal of the parameter based on the monitored signal, determining a difference between values of the monitored signal and the determined expected signal, and correlating the determined differences with yaw position of a nacelle of the wind turbine. The method includes determining, based on the correlated differences, unexpected values of the parameter for different yaw positions, and identifying, based on a frequency of occurrence of the determined unexpected values, a recurrent free-flow wind disturbance associated with a yaw position of the nacelle.
-
公开(公告)号：US12228107B2
公开(公告)日：2025-02-18
申请号：US17417082
申请日：2019-12-03
Applicant: VESTAS WIND SYSTEMS A/S
Inventor： Johnny Nielsen , Jens Van Schelve , Goncalo Lucas Marcos , Dan Hilton , Kristian Kiib
IPC: F03D7/02
Abstract: A method of correcting a pitch angle deviation of a blade of a wind turbine is provided. First blade load measurements measured when the wind turbine was operating in a first operational mode are provided, and used to determine calibration parameters. Second blade load measurements measured when the wind turbine was operating in a second operational mode are provided, and the calibration parameters applied to determine calibrated blade load measurements. A pitch angle deviation of at least one blade of the turbine is estimated based on an identified difference between the calibrated blade load measurements, and a pitch angle is adjusted to correct for the pitch angle deviation.
-
公开(公告)号：US12078150B2
公开(公告)日：2024-09-03
申请号：US17766983
申请日：2020-10-09
Applicant: VESTAS WIND SYSTEMS A/S
Inventor： Carlo Alberto Ratti , Johnny Nielsen , Jens Van Schelve
CPC classification number: F03D7/026 , F03D7/046 , F05B2270/3202
Abstract: 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.
-
公开(公告)号：US11952985B2
公开(公告)日：2024-04-09
申请号：US18326978
申请日：2023-05-31
Applicant: VESTAS WIND SYSTEMS A/S
Inventor： Pradeep Bosukonda , Johnny Nielsen , Tobias Rossel
CPC classification number: F03D80/40 , F03D7/0264 , F03D7/048 , F03D17/00 , F05B2260/80 , F05B2270/20
Abstract: 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.
-
公开(公告)号：US11181096B2
公开(公告)日：2021-11-23
申请号：US16063427
申请日：2016-12-22
Applicant: VESTAS WIND SYSTEMS A/S
Inventor： Johnny Nielsen
Abstract: 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.
-
Patent Agency Ranking
公开(公告)号：US10934998B2
公开(公告)日：2021-03-02
申请号：US16068030
申请日：2017-01-10
Applicant: VESTAS WIND SYSTEMS A/S
Inventor： Lars Glavind , Kristian Kiib , Ib Svend Olesen , Johnny Nielsen
Abstract: 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.
-
公开(公告)号：US10344740B2
公开(公告)日：2019-07-09
申请号：US15269839
申请日：2016-09-19
Applicant: VESTAS WIND SYSTEMS A/S
Inventor： Fabio Caponetti , Per Brath , Keld Hammerum , Johnny Nielsen
Abstract: 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.
-
公开(公告)号：US12281639B2
公开(公告)日：2025-04-22
申请号：US18557872
申请日：2022-04-26
Applicant: VESTAS WIND SYSTEMS A/S
Inventor： Kristian Kiib , Johnny Nielsen
IPC: F03D7/04
Abstract: A method of determining rotor speed of a wind turbine. The method involves receiving angular velocity sensor data indicative of an angular velocity of the wind turbine rotor hub, provided e.g., by a gyroscope and receiving acceleration sensor data indicative of an acceleration of the rotor hub in at least one radial direction relative to an axis of rotation of the rotor hub. The method further involves determining first and second estimated rotational speeds of the rotor hub based on the respective angular velocity sensor data and acceleration sensor data. The method also involves determining a correction value based on a difference between the first and second estimated rotational speeds, and applying the correction value to the first estimated rotational speed to determine the true current rotor speed of the wind turbine.
-
公开(公告)号：US12270377B2
公开(公告)日：2025-04-08
申请号：US18250354
申请日：2021-10-14
Applicant: VESTAS WIND SYSTEMS A/S
Inventor： Johnny Nielsen
Abstract: There is provided methods and systems for controlling a multi-rotor wind turbine generator having at least two rotor nacelle assemblies mounted to a support arrangement by a common yaw control system and each having a wind direction sensor mounted thereto configured to measure a wind direction relative to forward direction of its rotor nacelle assembly. The methods comprise the steps of measuring, for each rotor nacelle assembly, wind power parameter data over a plurality of relative wind directions, determining, based on the measured data, an optimum relative wind direction, either based on the average of two directions at which the parameter is maximum or on a combined data set, and controlling the yaw system accordingly.
-
公开(公告)号：US12000379B2
公开(公告)日：2024-06-04
申请号：US18006092
申请日：2021-07-01
Applicant: Vestas Wind Systems A/S
Inventor： Dan Hilton , Johnny Nielsen
CPC classification number: F03D17/00 , F03D1/02 , F03D7/0204 , F05B2270/328 , F05B2270/329 , F05B2270/331
Abstract: 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.
-
-
-
-
-
-
-
-
-
Search Results
41
records
(took 0.031 seconds)
