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Method for operating wind turbine, wind turbine, and wind park

A technology of wind energy equipment and effective wind speed, which is applied in the direction of wind power generation, mechanical equipment, wind engine control, etc., to achieve the effect of reducing control intervention

Pending Publication Date: 2021-01-12
WOBBEN PROPERTIES GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Then, the small blade angles combined with the strong winds generated by gusts cause high rotor thrusts which can cause extreme tower loads and high tower load swing amplitudes

Method used

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  • Method for operating wind turbine, wind turbine, and wind park
  • Method for operating wind turbine, wind turbine, and wind park
  • Method for operating wind turbine, wind turbine, and wind park

Examples

Experimental program
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Embodiment Construction

[0059] figure 1 A schematic diagram of a wind energy installation according to the invention is shown. Wind energy installation 100 has a tower 102 and a pod 104 on tower 102 . An aerodynamic rotor 106 with three rotor blades 108 and a fairing 110 is provided on the nacelle 104 . The aerodynamic rotor 106 is set into a rotational movement by the wind during operation of the wind power plant and thus also rotates the electrodynamic rotor or rotor parts of the generator, which are directly or indirectly coupled to the aerodynamic rotor 106 couplet. A generator is provided in the pod 104 and generates electrical power. The pitch angle of the rotor blade 108 can be changed by a pitch motor at the rotor blade root of the respective rotor blade 108 .

[0060] figure 2 A wind farm 112 is shown with an exemplary three wind energy installations 100 , which may be identical or different. Thus, three wind energy installations 100 essentially represent any desired number of wind en...

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Abstract

The invention relates to a method for operating a wind turbine. The wind turbine has an aerodynamic rotor with at least one rotor blade which is mounted on a rotor hub of the rotor. A blade angle of the at least one rotor blade can be adjusted about its longitudinal axis with respect to the rotor hub. The invention also relates to a corresponding wind turbine. The method has the following steps ofproviding the current wind properties, providing an actual blade angle of the rotor blade or an average value of all actual blade angles of the rotor blades, determining a stationary blade angle of the at least one rotor blade which is guided to a desired stationary operating state of the wind turbine while taking into consideration known rotor properties, the electric system, and the wind properties, comparing the stationary blade angle with the actual blade angle or the average value of all actual blade angles, and adapting the operation of the wind turbine if the stationary blade angle deviates significantly from the actual blade angle or the average value of all actual blade angles.

Description

technical field [0001] The invention relates to a method for operating a wind energy installation as well as a wind energy installation and an associated wind park using the method. Background technique [0002] It is known in the field of wind energy installations that the control of wind energy installations implements so-called pitch regulation, ie an adjustment of the blade angle around the longitudinal axis of the rotor blades in order to adjust to a desired operating point. The pitch angle of the rotor blades has a significant influence on the aerodynamic power of the rotor, where at a constant blade angle or pitch angle the generated aerodynamic power increases with increasing wind speed and can create dangerous loads , especially creating dangerous loads on the tower. [0003] Especially when, for example, strong gusts occur, the wind speed changes very strongly within a short period of time, while the rotor blades are positioned at small blade angles for small wind...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F03D7/02
CPCF03D7/0224F05B2270/322F05B2270/328Y02E10/72F03D7/048F05B2270/101F05B2270/327
Inventor 恩诺·冯阿斯韦格
Owner WOBBEN PROPERTIES GMBH
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