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Turbine alignment by using light polarization compass

A technology for wind turbines, polarization, applied in the direction of compass, engine, mechanical equipment, etc., which can solve the problems of measurement offset, human error, prolonged downtime of wind turbines, etc.

Active Publication Date: 2022-03-11
VESTAS WIND SYST AS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These methods require manual operation of the wind turbine to input correction factors into the control system; this is prone to human error and results in prolonged downtime of the wind turbine
Furthermore, measurements of wind turbine alignment are often offset while the wind turbine is operating unless the same correction procedure is applied periodically

Method used

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  • Turbine alignment by using light polarization compass
  • Turbine alignment by using light polarization compass
  • Turbine alignment by using light polarization compass

Examples

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Embodiment Construction

[0051] figure 1 An example of a wind turbine 1 is shown in a schematic perspective view. A wind turbine 1 comprises a tower 2 , a nacelle 3 at the top of the tower, and a rotor 4 operatively coupled to a generator housed inside the nacelle 3 . In addition to the generator, the nacelle houses the various components required to convert wind energy into electrical energy and to operate, control and optimize the performance of the wind turbine 1 . Positioned on top of the nacelle is a polarization compass 7 . A rotor 4 of a wind turbine comprises a central hub 5 and a plurality of blades 6 protruding outwards from the central hub 5 . In the embodiment shown, the rotor 4 comprises three blades 6, but the number may vary. Additionally, the wind turbine includes a control system. The control system may be placed inside the nacelle or distributed at multiple locations inside the turbine and communicatively coupled with the turbine.

[0052] The wind turbine 1 may be included in a...

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Abstract

A method of estimating an orientation of a wind turbine is provided. The method includes determining a solar polarization value using a polarized light compass of the wind turbine, and determining a yaw angle of the wind turbine associated with the solar polarization value. Determining a sun direction vector based on the sun polarization value and the associated yaw angle; and estimating an orientation of the wind turbine relative to a fixed direction using the sun direction vector.

Description

technical field [0001] The present invention relates to wind turbine control, and in particular, the present invention relates to estimating the orientation of a wind turbine. Background technique [0002] Wind turbines typically seek alignment with the mean wind direction over a certain period of time. In order to align a wind turbine in a given direction, it is necessary to know the orientation of the wind turbine. However, installation errors and inherent instrumentation errors lead to dispersion in the alignment of the turbines within the wind farm, which can negatively affect the energy output of the wind farm. Furthermore, new wind park control techniques can benefit from knowing the orientation of each wind turbine relative to the other turbines with a certain precision and in a robust and inexpensive way. [0003] Conventional methods for turbine alignment vary from rough alignment using a hand-held compass to GPS triangulation / direction extrapolation. These metho...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F03D7/02F03D7/04
CPCF03D7/0204F03D7/048F05B2260/80F05B2270/329F05B2270/802G01C17/38G01C17/34Y02E10/72F05B2260/84
Inventor G·O·维奥拉托
Owner VESTAS WIND SYST AS
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