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Lightning protection device and wind turbine generator system

A technology for lightning protection devices and wind turbines, which is applied to wind power generator components, wind power generation, wind power engines, etc. It can solve the problems that it is difficult to keep the gap distance of lightning protection devices relatively fixed, so as to achieve effective lightning protection and ensure safe operation.

Active Publication Date: 2013-03-20
SINOVEL WIND GROUP JIANGSU
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the wind power generation equipment performs yaw motion, the nacelle rotates relative to the tower top flange, so it is difficult to keep the gap distance between the discharge tip of the lightning protection device and the tower top flange relatively fixed, which is required in the prior art Problems and Problems Solved

Method used

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  • Lightning protection device and wind turbine generator system
  • Lightning protection device and wind turbine generator system

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Experimental program
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Effect test

Embodiment 1

[0024] Embodiment 1 of the present invention provides a lightning protection device, which can be applied to a body requiring lightning protection, and the body to be protected against lightning includes a body and a top conductor. Generally, the top conductor can rotate relative to the body. For example, the yaw device of the wind turbine can rotate relative to the iron tower.

[0025] The lightning protection device includes a body fixing frame, a discharge supporting frame and a guiding elastic piece. The body fixing frame is used to be fixedly connected with the body that needs lightning protection, and the lightning protection device is fixed on a certain part of the body that needs lightning protection. Usually, the body fixing frame is fixedly connected with the body on the top of the body that needs lightning protection.

[0026] The discharge support frame is fixedly connected with collector claws, guide wheels and carbon brushes, all of which protrude toward the side...

Embodiment 2

[0035] figure 1 Schematic diagram of the structure of the lightning protection device provided by Embodiment 2 of the present invention, such as figure 1 As shown, the lightning protection device includes a body fixing frame 1 , a discharge support frame 4 and a guiding elastic member 11 .

[0036] Body fixing frame 1 is used for being fixedly connected with the body that needs lightning protection. The discharge support frame 4 is fixedly connected with a collector claw 9, a guide wheel 6 and a carbon brush 10, all extending the discharge support frame 4 towards the side wall of the conductor on the top of the lightning protection body, and the guide wheel 6 and the carbon brush 10 protrude from the discharge support frame 4. To interfere with the side wall of the conductor on the top of the lightning protection body, the length of the collector claw 9 protruding from the discharge support frame 4 is less than the protruding length of the guide wheel 6;

[0037] The two end...

Embodiment 3

[0052] Embodiment 3 of the present invention provides a wind turbine, the specific structure can be found in figure 2 As shown, the lightning protection device is installed on the top of the iron tower of the wind turbine. The wind turbine includes a wind wheel, a generator, an iron tower and a yaw device, and also includes the lightning protection device for the wind turbine provided by any embodiment of the present invention; the rotating part of the nacelle of the yaw device is used as a body that needs lightning protection, and is fixed with the body fixing frame Connection, the top flange of the iron tower is used as the top conductor of the lightning protection body, which conflicts with the fixed guide wheels and carbon brushes on the discharge support frame.

[0053] The preferred solution is that the tower top flange 12 and the rotating part of the nacelle are fixed with bolts, the body fixing frame 1 of the lightning protection device is fixed on the rotating part 1...

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Abstract

The present invention discloses a lightning protection device and a wind turbine. The lightning protection device comprises a machine body fixing frame, a discharging support frame and a guiding elastic piece, wherein the machine body fixing frame is connected and fixed with a machine body; a current collection claw, a guide wheel and a carbon brush are fixedly connected to the discharging support frame, face the side wall of a top conductor at top portion of the lightning protection body and extend out of the discharging support frame; and two ends of the guiding elastic piece are connected with the machine body fixing frame and the discharging support frame respectively, and the relative distance between the machine body fixing frame and the discharging support frame is adjusted. The wind turbine comprises a wind wheel, a generator, an iron tower and a yawing device, and also comprises the lightning protection device and the wind turbine provided by the present invention. Through the lightning protection device and the wind turbine, effective lightning protection effect can be achieved, and safe operation of wind power generation equipment is ensured.

Description

technical field [0001] The invention relates to lightning protection discharge structure technology, in particular to a lightning protection device and a wind turbine. Background technique [0002] Lightning phenomena in nature have immeasurable damage to high-altitude buildings and equipment, especially to electronic control systems. Therefore, it is necessary to set up a lightning protection device to protect objects that need lightning protection. [0003] Usually by setting lightning rods, lightning protection belts, lightning protection nets, and lightning protection lines on the top of the building, it is the main way to prevent lightning from directly hitting buildings, structures, electrical networks or electrical devices. [0004] The tip discharge phenomenon with a gap is also an effective measure for lightning protection. The tip discharge phenomenon of the gap is to achieve the effect of lightning protection by controlling the gap distance between the top conduc...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F03D11/00
CPCY02E10/722H02G13/00F03D11/0033F03D80/30H02G13/40Y02E10/72
Inventor 闫猛路计庄张芹刘作辉
Owner SINOVEL WIND GROUP JIANGSU
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