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A method for determining a yaw position offset of a wind turbine

A wind turbine and yaw technology, which is applied in wind engine control, wind engine monitoring, wind engine, etc., can solve problems such as inaccurate yaw system and manual errors

Active Publication Date: 2018-10-23
VESTAS WIND SYST AS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This manual calibration of the yaw system is relatively imprecise and there is a considerable risk of introducing manual error

Method used

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  • A method for determining a yaw position offset of a wind turbine
  • A method for determining a yaw position offset of a wind turbine

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Embodiment Construction

[0077] figure 1 The relative geographic positions of the three wind turbines 1, 2, 3, which are arranged in the wind farm, are shown. The geographic direction "north" is indicated by arrow 4 . The wind farm may include a number of said other wind turbines, which are not in figure 1 shown in.

[0078] Each of the wind turbines 1, 2, 3 comprises a tower and a nacelle rotatably attached to the tower via a yaw system, the nacelle carrying the rotor. The yaw system of the wind turbines 1, 2, 3 allows the nacelle of the wind turbine to rotate to a position in which the rotor is guided into the oncoming wind. The yaw systems of the wind turbines 1, 2, 3 are initially aligned in geographic directions, eg manually. For example, this can be done using a compass and / or one or more landmarks, as described above. This manual alignment of the yaw system is relatively imprecise, and it may therefore be desirable to correct or adjust the yaw position provided by a given wind turbine 1 , ...

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PUM

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Abstract

A method for determining a yaw position offset of a wind turbine (1) is provided. A neighbouring wind turbine (2) of the wind farm is identified, said neighbouring wind turbine (2) being arranged in the vicinity of the wind turbine(1). Produced power data and / or wind speed data from the wind turbine (1) and from the neighbouring wind turbine(2),is obtained during a period of time,and a yaw position offset of the wind turbine(1) is derived, based on the obtained produced power data and / or wind speed data, and based on the geographical positions of the wind turbine (1) and the neighbouring windturbine(2).A local maximum and a local minimum being separated by an angular difference in yaw position being substantially equal to 180degrees.

Description

technical field [0001] The present invention relates to a method for determining a yaw position offset of a wind turbine relative to an absolute geographic direction. The yaw position of the wind turbine can be further corrected in order to cancel the yaw position offset. Furthermore, the present invention provides a controller capable of performing the method. Background technique [0002] It is sometimes relevant to determine the absolute orientation of the nacelle of the wind turbine, and thus the orientation of the rotor carried by the nacelle, relative to a particular landmark or geographic orientation. This may be required, for example, in order to perform sector management control with respect to wind direction. Furthermore, the control of a given wind turbine may be adjusted based on wake effects, etc. caused by adjacent wind turbines, vegetation, landscape, etc., so it is desirable to know when these obstacles are arranged in the wind direction relative to the win...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F03D7/02
CPCF03D7/0204F05B2270/329F05B2270/802Y02E10/72F05B2270/204F03D7/048F05B2270/32F05B2270/321F05B2260/821F03D17/00F05B2270/335
Inventor B·梅尔高克里斯滕松
Owner VESTAS WIND SYST AS