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Pneumatic apparatus controlling method and pneumatic apparatus

A control method and equipment technology, applied in the control of wind turbines, mechanical equipment, wind turbines, etc., can solve problems such as rotor cabin and/or tower damage, and achieve the effects of increasing load, reducing damage, and increasing wind resistance

Inactive Publication Date: 2007-12-05
GENERAL ELECTRIC CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, practice has shown that even with the rotor in the stopped position, high wind loads can cause damage to the rotor itself, the nacelle and / or the tower

Method used

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  • Pneumatic apparatus controlling method and pneumatic apparatus
  • Pneumatic apparatus controlling method and pneumatic apparatus
  • Pneumatic apparatus controlling method and pneumatic apparatus

Examples

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Embodiment Construction

[0028] FIG. 1 is a front view of a wind turbine 1 . Three rotor blades 5 are designed on a rotor blade plane around a rotor hub 4 mounted on the wind turbine chamber or nacelle 3 . The included angle between every two adjacent rotor blades is equal, in the example shown the included angle is 120 degrees. Lines A-A, B-B, C-C represent top views along the rotor blade axis. These figures are reproduced in Figure 2, which represents a top view of a wind turbine tower. The turbine rotor shaft 6 rotates in a direction perpendicular to the rotor blade plane on which the rotor blades are mounted. The rotor hub 4 is seated on the nacelle 3 and is rotatable. On top of the rotor hub 4 can be seen a cross section of all three rotor blades designed along A-A, B-B, C-C. Each sectional view represents the state at the moment when the corresponding rotor blade reaches its top position.

[0029] In the rotor blade stop position of the invention shown in Figure 2, the rotor blades A-A are ...

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PUM

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Abstract

The invention relates to a method for operating a wind power plant with a rotor and with at least two rotor blades rotatable about a common rotor axis in a rotor blade plane, whereof each can be swivelled about a swivel axis which is roughly parallel to its longitudinal axis approximately perpendicular to the rotor axis, in which the setting or pitch angels of the rotor blades are set with respect to the rotor blade plane as a function of the operating and in particular wind conditions, in which the pitch angels of at least two rotor blades in a parking position of the rotor, in which rotor rotation about the rotor axis is decelerated, are set to different values.

Description

technical field [0001] The invention relates to a control method for a pneumatic installation with a rotor having at least two rotor blades rotatable in the plane of the rotor blades about a common rotor axis, each blade being rotatable along a direction substantially parallel to its longitudinal axis Rotation of a transverse axis of rotation, preferably approximately perpendicular to the rotor axis; wherein the disposition of the rotor blades or their helix angle relative to the plane of the rotor blades rotating about the axis is set as a function of operating conditions, particularly wind conditions of; the invention also relates to pneumatic equipment controlled according to the method described above. Background technique [0002] Typically a wind turbine comprises a tower having at its tip a nacelle rotating about an axis substantially perpendicular to the direction of gravity, and a rotor rotating about an axis substantially perpendicular to the direction of gravity. ...

Claims

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Application Information

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IPC IPC(8): F03D7/02
CPCY02E10/723F05B2260/76F03D7/0268F03D7/0224F03D7/024F05B2260/74F03D7/0296Y02E10/72F05B2260/96
Inventor 马丁·冯穆蒂乌斯
Owner GENERAL ELECTRIC CO
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