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System for detecting proximity between a wind turbine blade and a tower wall

A technology of turbine blades and wind turbines, which is applied in the control of wind turbines, monitoring of wind turbines, and avoiding excessive deflection of blades, which can solve the problems of complex, time-consuming and expensive calibration of sensors.

Active Publication Date: 2012-03-21
GENERAL ELECTRIC RENOVABLES ESPANA SL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Traditional sensors and associated systems are relatively complex and expensive, and calibrating these sensors can be quite complex and time-consuming

Method used

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  • System for detecting proximity between a wind turbine blade and a tower wall
  • System for detecting proximity between a wind turbine blade and a tower wall
  • System for detecting proximity between a wind turbine blade and a tower wall

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Embodiment Construction

[0047] Reference will now be made in detail to embodiments of the subject matter, one or more examples of which are illustrated in the accompanying drawings. Each example is provided by way of explanation of the topic, not limitation of it. In fact, it will be apparent to those skilled in the art that various changes and modifications can be made in the subject matter without departing from the scope or spirit of the subject matter. For example, features illustrated or described as part of one embodiment can be used with another embodiment to yield a still further embodiment. Thus, it is intended that the present subject matter cover such changes and modifications as come within the scope of the appended claims and their equivalents.

[0048] figure 1 A perspective view of a horizontal axis wind turbine 10 is shown. It should be understood, however, that wind turbine 10 may be a vertical axis wind turbine. Wind turbine 10 includes a tower 12 extending from a support system...

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Abstract

The invention provides a system for detecting proximity between a wind turbine blade and a tower wall. A sensor system monitors deflection of turbine blades of a wind turbine. The system includes a first component configured on the turbine blades. A second component is configured on the tower at a height so as to detect the presence of the first component as the blades rotate past the tower. The second component generates a corresponding measurable parameter or value that is indicative of distance between the blades and tower. The second component is disposed substantially completely around the circumference of the tower so as to detect the first components at any rotational position of the turbine nacelle relative to the tower.

Description

technical field [0001] The subject matter relates generally to wind turbines, and more specifically to systems for detecting the proximity of turbine blades relative to tower walls in order to prevent tower strikes. Background technique [0002] Wind power is considered to be one of the cleanest and most environmentally friendly energy sources currently available, and wind turbines are gaining increasing attention in this regard. A modern wind turbine typically includes a tower, generator, gearbox, nacelle, and one or more turbine blades. The turbine blades capture kinetic energy from the wind using the known foil principle and transmit it through rotational energy to turn a shaft that couples the rotor blades to a gearbox or, if a gearbox is not used, directly to a generator. The generator then converts the mechanical energy into electrical energy that can be deployed to the grid. [0003] To ensure that wind power remains a viable energy source, efforts are made to incre...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F03D7/04G01B7/14
CPCF05B2270/33Y02E10/721F05B2240/912G01B7/14Y02E10/723Y02E10/728F03D1/0675F03D11/04F03D11/0091Y02E10/722F03D7/0288F05B2270/17F03D17/00F03D13/20F03D9/25Y02E10/72
Inventor U·诺伊曼
Owner GENERAL ELECTRIC RENOVABLES ESPANA SL
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