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Apparatus and method for operation of a wind turbine

一种风力涡轮机、空气动力学的技术，应用在风力发动机的控制、机械设备、风力发动机等方向，能够解决风力涡轮机停机等问题

Active Publication Date: 2012-03-14
GENERAL ELECTRIC RENOVABLES ESPANA SL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This resonance of the tower may require shutting down the wind turbine when the vibration exceeds the maximum allowable limit

Method used

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  • Apparatus and method for operation of a wind turbine
  • Apparatus and method for operation of a wind turbine
  • Apparatus and method for operation of a wind turbine

Examples

Experimental program
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Embodiment Construction

[0080] Reference will now be made in detail to various embodiments, one or more examples of which are shown in the various figures. Each example is provided by way of illustration and not intended as a limitation. For example, features illustrated or described as part of one embodiment can be used on or in conjunction with other embodiments to yield still other embodiments. It is intended that the present disclosure includes such modifications and variations.

[0081] According to embodiments described herein, a wind turbine operates a pitch drive system for rotating a rotor blade based on a result of an estimation of the occurrence of an overspeed condition of the wind turbine. The estimate is based on determined actual values ​​of a plurality of values ​​of the wind turbine. At least one of these variables, referred to as the first variable, is indicative of an overspeed condition of the wind turbine. For example, the first variable may be the rotor speed, which indicates...

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PUM

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Abstract

The inention relates to an apparatus and a method for operation of a wind turbine. A method for operating a wind turbine (10) is provided. The wind turbine (10) includes a rotor (18) including at least one rotor blade (22) and a pitch drive system (68) coupled to the at least one rotor blade (22). The pitch drive system (68) is adapted for pitching the rotor blade (22). The method includes: determining an actual value of a first variable indicative of an overspeed state of the wind turbine (10); determining an actual value of a second variable of the wind turbine (10) correlated to the rate of change over time of the first variable; and, estimating an occurrence of an overspeed state of the wind turbine (10) from at least the determined actual values of the first and second variables. The pitch drive system (68) pitches the rotor blade (22) for aerodynamically braking the rotor (18) based on the result of the estimation.

Description

technical field [0001] The subject matter described herein relates generally to methods and systems for operating a wind turbine, and more particularly, to methods and systems for operating a control assembly for a wind turbine. Background technique [0002] At least some known wind turbines include a tower and a nacelle mounted on the tower. A rotor is rotatably mounted to the nacelle and is coupled to the generator by a rotor shaft. In a typical wind turbine, a plurality of blades extend from the rotor. The blades are oriented in such a way that wind passing over the blades turns the rotor and rotates the rotor shaft, driving a generator to generate electricity. [0003] At least some known wind turbines are operated by a control system. Furthermore, at least some known control systems for wind turbines achieve their pitch control through rotation of the rotor blades about a pitch axis. That is, these control systems are designed to adjust the rotor speed of the wind t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F03D7/04
CPCF03D7/0224F03D7/0244F05B2270/32F05B2270/327F05B2270/334Y02E10/72F05B2270/1011
Inventor F·罗D·门克C·舒尔滕G·托尔博姆
Owner GENERAL ELECTRIC RENOVABLES ESPANA SL