Electric drive damping turning system for single blade hoisting of wind driven generator, and method thereof

A wind turbine and electric drive technology, applied in the assembly of wind turbines, wind power generation, etc., can solve the problems of inconvenient installation and use, wind wheel stall, complex structure, etc., and achieve convenient installation, uniform speed turning, and emergency braking moving effect

Active Publication Date: 2020-12-04
CRRC WIND POWER(SHANDONG) CO LTD
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  • Abstract
  • Description
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AI Technical Summary

Problems solved by technology

[0004] When the wind turbine is hoisted with a single blade, it is necessary to realize the barring rotation of the wind rotor when only one blade or two blades are assembled. Large torque, but when the motor is used to drive the cranking mechanism, there is a problem that the direction of the cranking output torque is consistent with the direction of the unbalanced load of the wind wheel and the direction of the wind wheel's rotation, which has a great safety risk of the wind wheel stalling. Therefore, the current wind power The barring used for hoisting single blades of generators is mostly driven by hydraulic pressure, but the inventor found that it needs to be equipped with a special hydraulic station and servo valve, which has the problems of high cost, complicated structure, and heavy weight, which is inconvenient to install and use

Method used

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  • Electric drive damping turning system for single blade hoisting of wind driven generator, and method thereof
  • Electric drive damping turning system for single blade hoisting of wind driven generator, and method thereof

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Embodiment Construction

[0027] It should be noted that the following detailed description is exemplary and intended to provide further explanation of the present invention. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.

[0028] It should be noted that the terminology used here is only for describing specific embodiments, and is not intended to limit exemplary embodiments according to the present invention. As used herein, unless the invention clearly states otherwise, the singular form is also intended to include the plural form. In addition, it should also be understood that when the terms "comprising" and / or "comprising" are used in this specification, their Indicate the presence of features, steps, operations, means, components and / or combinations thereof;

[0029] For the convenience of description, if the words "up", "down", "left" and "right" appear in th...

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Abstract

The invention discloses an electric drive damping turning system for single blade hoisting of a wind driven generator, and a method thereof. The electric drive damping turning system for single bladehoisting of the wind driven generator comprises a turning brake disc, wherein the turning brake disc is connected with a wind wheel through a gear box; a turning brake is arranged at the periphery ofthe turning brake disc; the turning brake disc is further connected with an electric drive turning gear; and when the electric drive turning gear drives the wind wheel to rotate, the turning brake applies a damping braking force to the turning brake disc, so that the wind wheel is steadily turned at a constant speed.

Description

technical field [0001] The invention belongs to the technical field of wind power generation equipment, and in particular relates to an electrically driven damping barring system and method for hoisting a single blade of a wind power generator. Background technique [0002] The statements herein merely provide background information related to the present invention and do not necessarily constitute prior art. [0003] At present, the wind rotor hoisting method commonly used in wind turbines is integral hoisting. As the blades of the wind turbine increase, the diameter of the wind rotor increases, but the area of ​​the wind rotor hoisting site is limited. The single-blade hoisting method has the advantage of small construction area, and has gradually become a wind power plant. Main trends in wind turbine hoisting for wind turbines. [0004] When the wind turbine is hoisted with a single blade, it is necessary to realize the barring rotation of the wind rotor when only one bl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F03D13/10
CPCF03D13/10Y02E10/72
Inventor 赵登利董营陈孝旭
Owner CRRC WIND POWER(SHANDONG) CO LTD
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