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Sliding bearing of a wind turbine blade and method of operation of a wind turbine having a sliding bearing

A technology of sliding bearings and wind turbines, which is applied in the direction of wind engines, machines/engines, and wind engine control in the same direction as the wind, and can solve the problems of increasing the total cost of operating wind turbines

Inactive Publication Date: 2014-10-29
VESTAS WIND SYST AS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Replacement of components and maintenance of such limited life components add to the overall cost of operating a wind turbine

Method used

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  • Sliding bearing of a wind turbine blade and method of operation of a wind turbine having a sliding bearing
  • Sliding bearing of a wind turbine blade and method of operation of a wind turbine having a sliding bearing
  • Sliding bearing of a wind turbine blade and method of operation of a wind turbine having a sliding bearing

Examples

Experimental program
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Embodiment Construction

[0021] refer to figure 1 and figure 2 And in accordance with an embodiment of the invention, wind turbine 10 includes: a tower 12; a nacelle 14 disposed at the apex of tower 12; and a rotor 16 operatively coupled to a power generator housed within nacelle 14 machine (not shown). In addition to the generator, nacelle 14 also houses the various components required to convert wind energy into electrical energy and to operate, control and optimize the performance of wind turbine 10 . Tower 12 supports the loads imposed by nacelle 14, rotor 16, and other components of wind turbine 10 housed within nacelle 14, and also operates to optionally lift nacelle 14 and rotor 16 to ground level Or the altitude above sea level where faster moving airflows with less turbulence are usually found.

[0022]The rotor 16 of the wind turbine 10, depicted as a horizontal axis wind turbine, serves as the prime mover of the electromechanical system. Wind above a minimum level will actuate the roto...

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PUM

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Abstract

A plain bearing assembly for mounting a blade to a hub of a wind turbine includes an outer member mountable to one of the blade or hub, and an inner member mountable to the other of the blade or hub and movable relative to the outer member. The plain bearing further includes fluid cavities associated with one of the outer or inner member and arranged to confront the other of the outer or inner member. The fluid cavities are coupled to a pressure source for establishing a pressurized fluid film between the inner and outer members. A method includes monitoring at least one parameter of the fluid film, comparing the at least one parameter to a threshold criteria, and altering a dynamic state of the wind turbine and / or altering the state of the blade bearing assembly if the threshold criteria is exceeded.

Description

technical field [0001] The present application relates generally to wind turbines, and more particularly to plain bearing designs for rotatably mounting a wind turbine blade to a hub of a wind turbine. Background technique [0002] Wind turbines are used to generate electricity from renewable resources without burning fossil fuels. Typically, wind turbines convert kinetic energy from the wind into mechanical energy, which in turn converts the mechanical energy into electrical energy. A horizontal axis wind turbine includes: a tower; a nacelle at the apex of the tower; and a rotor supported in the nacelle. The rotor is directly or indirectly coupled to a generator housed in the nacelle. The rotor includes a central hub and a plurality of blades (eg, three blades) mounted to and extending radially from the central hub. The blades can rotate relative to the hub to pitch the blades into and out of the wind. [0003] A typical modern wind turbine has multiple moving parts in ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F03D11/00F03D9/00F03D1/00F03D7/04
CPCY02E10/722F16C32/0692F16C32/0644F05B2260/79F03D11/0008F03D1/0658Y02E10/721F16C2233/00F16C2300/14F16C2360/31F03D17/00F03D80/70Y02E10/72
Inventor J·瓦德恩
Owner VESTAS WIND SYST AS