公开(公告)号：US10436673B2

公开(公告)日：2019-10-08

申请号：US15580397

申请日：2016-06-17

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： Ib Svend Olesen ,  Dan Hilton ,  Johnny Nielsen ,  Kristian Kiib

IPC: G01M13/00 ,  G01M13/02 ,  F03D7/00 ,  F16H59/14 ,  G01B21/32 ,  G01L5/26 ,  G01L1/04 ,  G01L3/10 ,  F03D17/00 ,  F03D7/02 ,  F16H59/46

Abstract: A method of determining torsional deformation in a drivetrain e.g. of a wind turbine. To provide a reliable and simple deformation assessment, the method comprises the step of generating a first signal representing first rotational speed of a low speed shaft, generating a second signal representing the second rotational speed of a high speed shaft, and determining torsional deformation based on changes in the ratio between the first and second signals.

公开(公告)号：US11965485B2

公开(公告)日：2024-04-23

申请号：US17964143

申请日：2022-10-12

Applicant: Vestas Wind Systems A/S

Inventor： Lars Glavind ,  Johnny Nielsen

IPC: F03D7/02 ,  F03D7/04 ,  F03D17/00 ,  G01S19/14 ,  G01S19/42 ,  G01S19/26

CPC classification number: F03D7/0296 ,  F03D7/0204 ,  F03D7/042 ,  F03D17/00 ,  G01S19/14 ,  G01S19/42 ,  F05B2270/329 ,  F05B2270/802 ,  G01S19/26

Abstract: A method of determining an orientation of a nacelle of a wind turbine, wherein the nacelle carries a Global Navigation Satellite System (GNSS) sensor, the method comprising: yawing the nacelle between a series of orientations; obtaining locus data based on a series of calibration positions measured by the GNSS sensor, wherein each calibration position is measured by the GNSS sensor when the nacelle is in a respective orientation of the series of orientations; storing the locus data; after storing the locus data, measuring a new position with the GNSS sensor; and determining the orientation of the nacelle on the basis of the stored locus data and the new position.

公开(公告)号：US11952983B2

公开(公告)日：2024-04-09

申请号：US17784189

申请日：2020-12-15

Applicant: Vestas Wind Systems A/S

Inventor： Lars Glavind ,  Johnny Nielsen

IPC: F03D7/02 ,  F03D7/04 ,  F03D17/00 ,  G01S19/14 ,  G01S19/42 ,  G01S19/26

CPC classification number: F03D7/0296 ,  F03D7/0204 ,  F03D7/042 ,  F03D17/00 ,  G01S19/14 ,  G01S19/42 ,  F05B2270/329 ,  F05B2270/802 ,  G01S19/26

Abstract: A method of determining an orientation of a nacelle of a wind turbine, wherein the nacelle carries a Global Navigation Satellite System (GNSS) sensor, the method comprising: yawing the nacelle between a series of orientations; obtaining locus data based on a series of calibration positions measured by the GNSS sensor, wherein each calibration position is measured by the GNSS sensor when the nacelle is in a respective orientation of the series of orientations; storing the locus data; after storing the locus data, measuring a new position with the GNSS sensor; and determining the orientation of the nacelle on the basis of the stored locus data and the new position.

公开(公告)号：US20230032161A1

公开(公告)日：2023-02-02

申请号：US17784189

申请日：2020-12-15

Applicant: Vestas Wind Systems A/S

Inventor： Lars Glavind ,  Johnny Nielsen

IPC: F03D7/02 ,  F03D7/04 ,  F03D17/00 ,  G01S19/14

Abstract: A method of determining an orientation of a nacelle of a wind turbine, wherein the nacelle carries a Global Navigation Satellite System (GNSS) sensor, the method comprising: yawing the nacelle between a series of orientations; obtaining locus data based on a series of calibration positions measured by the GNSS sensor, wherein each calibration position is measured by the GNSS sensor when the nacelle is in a respective orientation of the series of orientations; storing the locus data; after storing the locus data, measuring a new position with the GNSS sensor; and determining the orientation of the nacelle on the basis of the stored locus data and the new position.

公开(公告)号：US11187210B2

公开(公告)日：2021-11-30

申请号：US16627414

申请日：2018-06-21

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： Jacob Deleuran Grunnet ,  Johnny Nielsen

IPC: F03D80/40 ,  F03D17/00

Abstract: Embodiments herein describe a system used to estimate the presence of water on a sensor. A parameter maintains a wind sensor temperature. The parameter can be tracked and evaluated to indicate a likelihood of water on the sensor. Alternatively, or in combination with the above, the sensor is adjusted intentionally or deactivated and reactivated to track a parameter response which is then used to indicate a likelihood of water on the sensor.

公开(公告)号：US11174838B2

公开(公告)日：2021-11-16

申请号：US16337842

申请日：2017-09-27

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： Johnny Nielsen

IPC: F03D7/02 ,  G01P13/02 ,  G01P5/00

Abstract: The invention relates to a method of controlling a wind turbine comprising a wind direction sensor, a yawing system, and a control system for yawing the wind turbine rotor relative to the wind. The method comprises obtaining an estimate for a wind power parameter as a function of a relative wind direction, where the wind power parameter is determined as one of a power, a torque, a blade load, or a blade pitch angle of the wind turbine. At time intervals, a data set is established comprising a wind power parameter and a wind direction parameter as measured by the wind direction sensor. Over time a group of data sets is then obtained for a number of pre-defined wind direction intervals, and a wind direction offset is determined for each interval by comparing the average wind power parameter for that interval with the estimate of the wind power parameter. The wind direction offsets of the different wind direction intervals are used to adjust the wind direction parameter, and applied in the controlling of the wind turbine. The invention further relates to a control system for a wind turbine for performing a control method as mentioned above.

公开(公告)号：US10815971B2

公开(公告)日：2020-10-27

申请号：US15844273

申请日：2017-12-15

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： Jacob Deleuran Grunnet ,  Johnny Nielsen ,  Jes Rasmussen ,  Claus Thybo

IPC: F03D7/04 ,  F03D17/00 ,  F03D1/06 ,  G01S17/89

Abstract: The present disclosure relates to a system for determining at least one blade state parameter of a wind turbine blade, wherein the system is configured to: obtain blade data relating to the wind turbine blade from a sensor system associated with the wind turbine blade; compare at least one reference model of at least a portion of the wind turbine blade with the blade data; identify a reference model in dependence on the comparison; and determine at least one blade state parameter in dependence on the identified reference model. The blade data may take the form of an image, for example a 3-dimensional measurement such as a point cloud representing at least a portion of the blade.

公开(公告)号：US10767628B2

公开(公告)日：2020-09-08

申请号：US16088268

申请日：2017-04-04

Applicant: Vestas Wind Systems A/S

Inventor： Tobias Gybel Hovgaard ,  Johnny Nielsen ,  Peter Fogh Odgaard

IPC: F03D17/00 ,  F03D13/20 ,  F03D7/02 ,  F03D7/04 ,  G05B17/02 ,  F03D1/00

Abstract: The invention relates to control of a wind turbine comprising a plurality of multi-axial accelerometers mounted at different positions in the nacelle and/or in a top portion of the tower. The position and orientation of each accelerometer as mounted is obtained, accelerations in at least two different directions by each accelerometer are measured during operation of the wind turbine. From a number of predetermined mode shapes for the movement of the wind turbine is then determined an absolute position of at least one of the accelerometers during operation of the wind turbine based on the measured accelerations, the mount position and orientation of each accelerometer and the pre-determined mode shapes. Hereby a more precise absolute position during operation is obtained which can be used in the controlling of the turbine.

公开(公告)号：US20190170116A1

公开(公告)日：2019-06-06

申请号：US16314000

申请日：2017-06-29

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： Johnny Nielsen

IPC: F03D7/02 ,  F03D17/00

Abstract: 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.

公开(公告)号：US11976629B2

公开(公告)日：2024-05-07

申请号：US17629519

申请日：2020-07-07

Applicant: Vestas Wind Systems A/S

Inventor： Ines Pinto Frutuoso ,  Johnny Nielsen ,  Jens Van Schelve

IPC: F03D7/02 ,  F03D17/00

CPC classification number: F03D7/0204 ,  F03D17/00 ,  F05B2270/32 ,  F05B2270/321

Abstract: A method for determining a relative position of wind sensors on a wind turbine comprising: obtaining wind data from each of at least two wind sensors installed on a wind turbine at a location where airflow is affected by a rotor of the wind turbine, the obtaining occurring while the rotor is rotating, identifying oscillations in the wind data from each of the wind sensors, determining a phase or amplitude difference between the oscillations, and determining a relative position of the wind sensors based on the phase or amplitude difference.