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Method for adjusting a pitch angle of a rotor blade, control device for adjusting a pitch angle and related wind energy facility

A technology for rotor blades, control equipment, applied to setting the pitch angle of rotor blades

Pending Publication Date: 2021-06-22
WOBBEN PROPERTIES GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In particular, the object of the present invention is to provide a solution which enables a higher efficiency of a wind energy installation, especially at low air densities.

Method used

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  • Method for adjusting a pitch angle of a rotor blade, control device for adjusting a pitch angle and related wind energy facility
  • Method for adjusting a pitch angle of a rotor blade, control device for adjusting a pitch angle and related wind energy facility
  • Method for adjusting a pitch angle of a rotor blade, control device for adjusting a pitch angle and related wind energy facility

Examples

Experimental program
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Embodiment Construction

[0068] figure 1A schematic three-dimensional view of a wind energy installation is shown. Wind energy installation 100 has a tower 102 and a pod 104 on tower 102 . Arranged on the pod 104 is an aerodynamic rotor 106 having three rotor blades 108 and a spinner 110 , each having a rotor blade length. The aerodynamic rotor 106 is set in rotational motion by the wind during operation of the wind energy installation 100 and thus also turns the electrodynamic rotor or armature of the generator, which is directly or indirectly coupled to the aerodynamic rotor 106 . A generator is provided in the pod 104 and generates electrical power.

[0069] The rotor blades 108 each have a rotor blade longitudinal axis 112 . The rotor blade longitudinal axis 112 extends substantially from a root region of the rotor blade facing the pod 104 to a rotor blade tip facing away from the pod 104 . The rotor blade 108 is arranged to be rotatably movable about a rotor blade longitudinal axis 112 . In ...

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Abstract

A method for setting a pitch angle 324 of a rotor blade 108 for a rotor of a wind energy facility, a control device for setting a pitch angle of a rotor blade for a rotor of a wind energy facility, and a wind energy facility. The invention provides a method for setting a pitch angle 324 of a rotor blade for a rotor 106 of a wind energy facility 100, in particular for avoiding suction-side flow separation, wherein the rotor blade is movable rotationally about a rotor blade longitudinal axis 112 for setting the pitch angle 324 by means of a pitch drive 116, 324, comprising the steps: determining 400 an aerodynamic power 322 of the rotor 106, establishing 402 a nominal pitch angle 312 as a function of the aerodynamic power 322, and setting 404 the pitch angle 324 to the established nominal pitch angle 312.

Description

technical field [0001] The invention relates to a method for setting a pitch angle of rotor blades of a rotor of a wind energy installation, a control device for setting the pitch angle of rotor blades of a rotor of a wind energy installation, and a wind energy installation. Background technique [0002] Wind energy installations are known in principle, which generate electrical power from the wind. Modern wind energy installations are usually so-called horizontal axis wind energy installations, in which the rotor shaft is arranged essentially horizontally and the rotor blades sweep over an essentially vertical rotor surface. A wind energy installation usually comprises, in addition to a rotor arranged on a nacelle, a tower on which the nacelle and the rotor are arranged rotatably about an axis oriented substantially vertically. A rotor usually includes one, two or more equally long rotor blades. Rotor blades are elongated components, usually made of fiber-reinforced plast...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F03D7/04F03D17/00
CPCF03D7/0224F03D17/00F05B2270/328F03D7/0276F05B2270/309Y02E10/72F03D7/042F05B2270/32F05B2270/327F05B2270/331
Inventor 乌尔夫·沙佩尔
Owner WOBBEN PROPERTIES GMBH
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