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Method for identifying wind distribution patterns on a rotor plane and wind turbine implementing the method

A technology of wind turbine and distribution mode, which is applied in the direction of wind engine, wind engine, wind engine control and other directions consistent with the wind direction, which can solve the problems that the wind force distribution is difficult to realize, and the wind turbine operator is not feasible, so as to improve the protection function , Improve the effectiveness of root cause analysis

Active Publication Date: 2019-12-13
YUANJIAN WIND POWER JIANGYINENVISION ENERGY CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] Direct measurement of wind distribution in the plane of the rotor is very difficult to achieve, so it is usually not feasible for wind turbine operators

Method used

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  • Method for identifying wind distribution patterns on a rotor plane and wind turbine implementing the method
  • Method for identifying wind distribution patterns on a rotor plane and wind turbine implementing the method
  • Method for identifying wind distribution patterns on a rotor plane and wind turbine implementing the method

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Embodiment Construction

[0097] figure 1 An exemplary embodiment of a wind turbine 1 of the variable speed wind turbine type is shown. The wind turbine 1 comprises a wind turbine tower 2 arranged on a foundation. The nacelle 3 is arranged on top of the wind turbine tower 2 and is yawed relative to the wind turbine tower 2 by a yaw system (not shown). A rotor 4 comprising a hub 5 and at least two wind turbine blades 6 mounted to the hub 5 is rotatably arranged relative to the nacelle 3 . Here the wind turbine 1 is shown with three wind turbine blades 6 . The hub 5 is connected via a drive shaft to a drive train housed in the nacelle 3 , wherein the drive train includes at least a generator for generating an electrical power output.

[0098] The wind turbine 1 further comprises a control system 7 of the local control system type connected to a plurality of sensor units 8 . The control system 7 operates the wind turbine 1 in a normal operating mode and at least one load protection mode. The sensor u...

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Abstract

The invention relates to a method of identifying a wind distribution pattern on a rotor plane and a wind turbine implementing the method. At least one operating parameter of the wind turbine and the rotational position of the rotor are measured over a period of time. A first wind turbine blade passing signal is extracted from the measured operating parameter and a second wind turbine blade passing signal is generated from the rotational position. The first and second wind turbine blade passing signals are then analyzed to determine the characteristics of the actual wind turbine blade passing signal in the plane of the rotor. These signatures are then compared to signatures of a plurality of known wind distribution patterns, and the wind turbine blade is used to identify a unique wind distribution pattern through the unique correlation between the signal signature and the wind distribution pattern.

Description

technical field [0001] The invention relates to a method of identifying a wind distribution pattern on a rotor plane of a wind turbine and a wind turbine implementing the method. The method includes measuring at least one operating parameter of the wind turbine, extracting a wind turbine blade passing signal from the measured operating parameter, and using a unique correlation between a characteristic of the wind turbine blade passing signal and a number of predetermined wind force distributions to determine a wind turbine blade passing signal in a rotor plane. Wind distribution pattern. Background technique [0002] It is known that wind farms can be installed on flat plain areas where the wind can pass almost freely through the turbines in the area. The contour of the wind turbine, which is exposed to the wind on the plane of the rotor, is thus substantially stable. At the same time, due to various practical reasons, wind farms can also be installed in complex or very un...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F03D17/00F03D7/02
CPCF03D7/0292F05B2270/326F05B2270/331F03D7/0224F03D7/024F03D7/043Y02E10/72Y02E10/728F03D1/06F05B2240/14F05B2240/912F05B2270/334F05B2270/335F05B2270/708F03D17/00
Inventor 童磊陈林王鹏科德·斯蒂芬·佩德森
Owner YUANJIAN WIND POWER JIANGYINENVISION ENERGY CO LTD
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