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Method for monitoring a wind turbine, method for identifying ice on a wind turbine, acceleration sensor for a rotor blade, rotor blade comprising an acceleration sensor, and profile for a rotor blade

An acceleration sensor, wind turbine technology, applied in the direction of measuring acceleration, monitoring of wind turbines, wind turbines, etc., can solve problems such as torsional instability of rotor blades, monitoring and monitoring sensor limitations, etc.

Inactive Publication Date: 2017-08-01
FOS4X
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

Due to the conditions associated with the operation of wind turbines, such as temperature changes, atmospheric influences and weather conditions, and especially strongly changing wind conditions, as well as numerous safety measures stipulated by law, the sensors required for monitoring and monitoring are subject to many constraints
[0003] For example, torsional instability of the rotor blades can occur during operation

Method used

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  • Method for monitoring a wind turbine, method for identifying ice on a wind turbine, acceleration sensor for a rotor blade, rotor blade comprising an acceleration sensor, and profile for a rotor blade
  • Method for monitoring a wind turbine, method for identifying ice on a wind turbine, acceleration sensor for a rotor blade, rotor blade comprising an acceleration sensor, and profile for a rotor blade
  • Method for monitoring a wind turbine, method for identifying ice on a wind turbine, acceleration sensor for a rotor blade, rotor blade comprising an acceleration sensor, and profile for a rotor blade

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Embodiment Construction

[0030] Hereinafter, reference is made in detail to various embodiments of the invention, one or more examples of which are illustrated in the accompanying drawings.

[0031] figure 1 A shows a rotor blade 100 of a wind turbine. The rotor blade 100 has an axis 101 along its longitudinal extension. The rotor blade length 105 ranges from the blade flange 102 to the blade tip 104 . According to the embodiments described herein, the acceleration sensor 110 is located in the axial or radial region, i.e. in the region along the axis 101, wherein the acceleration sensor is arranged within the outer 70% of the radius of the rotor blade of the wind turbine. to the location.

[0032] In practice up to now the sensor has been attached close to the blade flange 102 . Typically, so far, the sensors are actually attached within the inner 20% of the rotor blade radius. Such positioning has hitherto been a frequently required prerequisite, since lightning strikes are a serious threat to w...

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Abstract

Disclosed is a method for monitoring a wind turbine. The method comprises: the measurement of an acceleration by means of a fibre-optic acceleration sensor in a rotor blade of the wind turbine; an opto-electronic conversion of an acceleration signal of the fibre-optic acceleration sensor; and the filtering of the opto-electronically converted acceleration signal by means of an analogue anti-aliasing filter.

Description

technical field [0001] Embodiments of the invention generally relate to controlling and / or regulating and monitoring the operation of a wind turbine and components used for this purpose, such as acceleration sensors and / or corresponding components of the wind turbine, respectively. Embodiments relate in particular to methods for monitoring torsional instability of rotor blades of a wind turbine, methods for individual deflection adjustment of rotor blades of a wind turbine, methods for controlling and / or regulating including in particular for tower clearance alarms Method for wind turbines of acceleration sensors, method for monitoring wind turbines by means of fiber optic acceleration sensors, fiber optic acceleration sensors, profiles for trailing edges of rotor blades of wind turbines, rotor blades of wind turbines, wind turbine Rotors and wind turbines. Background technique [0002] Wind power plants are subject to complex controls which may be required, for example, du...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F03D80/40F03D17/00
CPCF05B2270/334F05B2270/807F05B2270/804G01P15/093F03D80/40F03D17/00Y02E10/72
Inventor 马蒂亚斯·穆勒马蒂亚斯·舒伯特
Owner FOS4X
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