Method of determining orientation of a nacelle
AssigneeVestas Wind Systems A/S
InventorsLars Glavind, Johnny Nielsen
Life of this patent
Estimating the term…
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.
Claims17
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;
- at each orientation of the series of orientations, measuring a calibration position with the GNSS sensor to generate a series of calibration positions each associated with a respective orientation of the series of orientations;
- defining locus data based on the series of calibration positions and their respective 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.
A wind turbine comprising:
- a tower;
- a nacelle rotatably mounted on the tower;
- a Global Navigation Satellite System (GNSS) sensor carried by the nacelle;
- and
- a control system configured to:
- yaw the nacelle between a series of orientations;
- at each orientation of the series of orientations, measure a calibration position with the GNSS sensor to generate a series of calibration positions each associated with a respective orientation of the series of orientations;
- define locus data based on the series of calibration positions measured by the GNSS sensor and their respective orientations;
- store the locus data;
- after storing the locus data, measure a new position with the GNSS sensor;
- and
- determine an orientation of the nacelle on the basis of the stored locus data and the new position.
Dependencies are inferred from the claim text.