Wind turbine with remote wind measuring device and remote wind measuring device

A wind turbine, long-distance technology, applied in the direction of the wind engine, wind engine, wind engine control and other directions consistent with the wind direction, can solve the problems of inaccurate measurement results, complex and expensive wind characteristics, and inaccurate wind characteristics of wind turbines

Inactive Publication Date: 2016-01-27
SSB WIND SYST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But from a certain hub height, remote wind measuring devices mounted on the wind measuring tower are very complicated and expensive to measure the wind characteristics at the hub height of the wind turbine
[0008] Disadvantages of this separately established Doppler measuring device are, on the one hand, that the measurement becomes inaccurate with increasing hub height and, on the other hand, that when the rotor rotates about an axis perpendicular to its axis of rotation (yaw axis ) is rotating, the wind characteristics detected by the wind measuring instrument installed statically on the ground or on the wind measuring tower in front of the hub of the wind turbine are even more inaccurate
However, the existing devices do not give any technical hints in this regard, because it seems that the mounting of lidar or sodar on the hub, although described in the literature, has not yet been technically realized

Method used

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  • Wind turbine with remote wind measuring device and remote wind measuring device
  • Wind turbine with remote wind measuring device and remote wind measuring device
  • Wind turbine with remote wind measuring device and remote wind measuring device

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Embodiment Construction

[0042] figure 1 A wind turbine 1 is shown having a foundation 2 and a tower 3 standing thereon, wherein at the far end of the tower 3 from the foundation 2 a machine room called a nacelle 4 is arranged. The nacelle 4 is mounted rotatably on the tower 3 and can turn about a tower axis 5 (yaw axis) and thus follow the wind direction. Protruding from the nacelle 4 to the right is a rotor 6 with a (rotor) axis of rotation 8 and at its end facing away from the nacelle 4 a rotor hub 7 with three rotor blades extending radially with respect to the rotor axis 8 , the rotor blades Marked 9, 10 and 11. Since it is a schematic diagram, the figure 1 Only the rotor blades 9 and 10 can be seen in the figure. figure 2 A schematic front view of the rotor 6 is shown, from which the rotor blades 11 can be seen. Each rotor blade is usually fixed offset by 120° in the circumferential direction of the hub.

[0043] Depend on figure 1 It can also be seen that each rotor blade 9 , 10 is mecha...

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PUM

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Abstract

The invention relates to a wind turbine having a rotor hub (7) rotating about a rotor axis (8), the rotor hub (7) having rotors extending radially with respect to the rotor axis (8) and spaced from one another at the same angular distance blades (9, 10, 11), and a remote wind measuring device (19) fixed in a bracket (20) on the outer surface of said hub (7), the remote wind measuring device (19) being oriented such that at said Wind characteristics can be determined or measured at a space in front of the hub (7), wherein said remote wind measuring device (19) is arranged between two adjacent rotor blades (9, 10) and along said rotor axis (8 ), and the bracket (20) is fixed in the connection area where the hub (7) is connected to the respective blade bearings (21, 22) of the two rotor blades, and the bracket has a A fixing device for detachably connecting the bracket (20) with the hub (7).

Description

technical field [0001] The invention relates to a wind turbine with a wind measuring device. The invention also relates to a remote wind measuring device having a support for supporting the remote wind measuring device on the surface of a rotatable hub of a wind turbine. Background technique [0002] The economics of a wind turbine for generating electrical energy from the wind requires the acquisition and measurement of exact wind characteristics (wind speed and / or wind speed profile). In particular, it is necessary to know the wind characteristics in the area of ​​wind-induced rotation of a rotor of a wind turbine with a rotor hub and rotor blades extending radially relative to the rotor axis. The rotor drives a generator located in a fixed machine room (also known as a nacelle or pod), which generates electrical energy that is fed into the grid. In the nacelle, control devices are usually also arranged in the rotor, by means of which the wind turbine is controlled in de...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F03D17/00F03D7/04F03D1/00
CPCF05B2230/80F05B2270/32F05B2270/8042F03D17/00Y02P70/50
Inventor N.凯廷格
Owner SSB WIND SYST
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