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Method of starting wind turbines in cold climates

A climate environment and wind turbine technology, applied in the control of wind turbines, engines, engine components, etc., can solve the problems of long warm-up time, expensive heaters, and increasing the overall cost of wind turbines

Active Publication Date: 2018-10-23
VESTAS WIND SYST AS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, heaters are usually expensive, thus adding to the overall cost of the wind turbine
Heater repairs can also be a source of cost
Additionally, conventional gearbox heaters and start-up procedures result in significant warm-up time before the wind turbine reaches its rated operating condition

Method used

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  • Method of starting wind turbines in cold climates
  • Method of starting wind turbines in cold climates
  • Method of starting wind turbines in cold climates

Examples

Experimental program
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Effect test

Embodiment Construction

[0017] refer to figure 1 And according to one embodiment of the invention, a wind turbine 10 includes a tower 12 , a nacelle 14 disposed on top of the tower 12 , and a rotor 16 operatively coupled to a generator 18 housed within the nacelle 14 . In addition to generator 18 , nacelle 14 houses other components needed to convert wind energy into electrical energy and various components needed to operate, control, and optimize the performance of wind turbine 10 . Tower 12 supports loads provided by nacelle 14 , rotor 16 , generator 18 , and other components of wind turbine 10 housed within nacelle 14 . The tower 12 of the wind turbine 10 also operates to elevate the nacelle 14 and rotor 16 to a height above water level or sea level, as the case may be, where faster moving airflows with low turbulence are often found.

[0018] The rotor 16 of the wind turbine 10 (shown as a horizontal axis wind turbine) serves as the prime mover for the electromechanical system. Wind above a min...

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Abstract

A method of starting a wind turbine in a cold climate environment comprising: providing the wind turbine at a standstill or near standstill in the cold climate environment; allowing the rotational speed of the rotor to increase during start-up of the wind turbine; optimizing the gearbox heat generation within the gearbox; and generating power with the wind turbine, wherein the heat generation within the gearbox is optimized before the generated electrical power is provided to a transmission grid. Optimizing heat generation within the gearbox may include maximizing internal power losses within the gearbox during start-up. This allows start-up without the use of external heaters. Aspects of the present method may be used during low wind conditions in cold climate environments so that the wind turbines are ready to produce power as soon as sufficient wind conditions are re-established.

Description

technical field [0001] The present invention relates generally to wind turbines, and more particularly to an improved method for starting a wind turbine or operating a wind turbine in a cold climate environment. Background technique [0002] Wind turbines are used to generate electricity from renewable resources without burning fossil fuels. Typically, a wind turbine converts kinetic energy from the wind into mechanical energy, and then converts the mechanical energy into electrical power. A horizontal axis wind turbine consists of a tower, a nacelle at the top of the tower, and a rotor supported in the nacelle. The rotor is coupled to a generator for converting the kinetic energy of the blades into electrical energy. [0003] Wind turbines are located in many places around the world that have a sufficient supply of wind power to enable them to operate. In some cases, favorable wind conditions for the operation of wind turbines arise where the local climate can be quite c...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F03D7/02F03D9/25
CPCF03D15/00F03D80/60F05B2260/4031F05B2270/101F05B2270/303F03D7/026Y02E10/72F03D15/10F03D1/0658F03D9/22F03D9/255
Inventor K·E·彼得森J-P·荣恩
Owner VESTAS WIND SYST AS