Overall unit cooling system for wind generating set, control method for overall unit cooling system, and wind generating set

A technology for wind turbines and heat dissipation systems, applied in wind turbine components, wind engine control, wind engines, etc., can solve the problems of wind farms with large wind and sand, unstable air supply, and overheating of heating components. To achieve the effect of ensuring normal operation, avoiding overheating and reducing operating costs

Active Publication Date: 2015-12-09
BEIJING GOLDWIND SCI & CREATION WINDPOWER EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The inventors have found through research that due to the large wind and sand in the wind farm where the wind power generating set is located and the harsh environment, the existing fan cooling device is easily affected by the wind and sand, and the air supply volume is unstable, resulting in poor heat dissipation inside the wind generating set and internal heat generation. Components prone to overheating

Method used

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  • Overall unit cooling system for wind generating set, control method for overall unit cooling system, and wind generating set
  • Overall unit cooling system for wind generating set, control method for overall unit cooling system, and wind generating set
  • Overall unit cooling system for wind generating set, control method for overall unit cooling system, and wind generating set

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Embodiment 1

[0025] Such as figure 1 As shown, the wind power generating set with the complete cooling system of the embodiment of the present invention includes a tower 12 , a nacelle 14 on the tower 12 and a hub 15 on which fan blades 16 are arranged.

[0026] The heat dissipation system of the whole machine includes an air inlet 17 arranged on the wall of the tower 12 , a fan 10 and an air box 9 arranged inside the tower 12 . The air box 9 has an air inlet end 91 open downward and an air outlet end 92 opposite to the air inlet end 91. An air handling system 8 is arranged in the air box 9, and the air handling system 8 connects the air inlet end 91 and the air outlet end 92. Separated from each other, the air inlet end 91 is connected to the air inlet 17 through the air guide pipe 3 , and the fan 10 is arranged on the air outlet end 92 . The bellows 9 is preferably arranged on the main control platform 13 inside the tower 12 .

[0027] The bellows 9 can be designed in a square or cylin...

Embodiment 2

[0051] Embodiment 2 is an embodiment of the control method for the cooling system of the whole machine of the present invention, including the following steps:

[0052] First in step s1, the temperature sensor 11 detects the air temperature in the wind power generating set and transmits the temperature signal to the main control system 5;

[0053] Then in step s2, the main control system 5 compares the air temperature in the wind power generating set with the predetermined first boundary temperature T1, and if the air temperature is greater than the first boundary temperature T1, then execute step s3;

[0054] In step s3, the main control system 5 activates the fan 10 to perform heat dissipation.

[0055] Further, in order to avoid frequent starting of the fan 10 and to protect the fan 10, after the fan 10 is started, the following steps are also included:

[0056] Step s4, make the fan 10 run for a predetermined first time length t1;

[0057] Then in step s5, the main contr...

Embodiment 3

[0072] The third embodiment provides a wind power generating set, which includes the cooling system for the whole machine according to the first embodiment.

[0073] The structure, principle and beneficial effects of the heat dissipation system of the wind power generating set are as described in the first embodiment above, and will not be repeated here.

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Abstract

The invention provides an overall unit cooling system for a wind generating set, a control method for the overall unit cooling system, and the wind generating set. The overall unit cooling system comprises an air inlet formed in the wall of a tower, a fan arranged in the tower and used for introducing external air into the tower through the air inlet, and a bellows, wherein the bellows is provided with an air inlet end which opens downwards and an air outlet end opposite to the air inlet end. An air processing system is arranged in the bellows and isolates the air inlet end from the air outlet end, the air inlet end is connected with the air inlet through an air guiding pipe, and the fan is arranged at the air outlet end. The overall unit cooling system can prevent air containing dust and sand from entering the upper portion of the tower, meanwhile, it can be guaranteed that cooling air with stable flow is provided for the interior of the tower all the time to cool heating components in time, the over-temperature phenomenon of the heating components is avoided, and normal operation of the wind generating set is guaranteed.

Description

technical field [0001] The invention relates to the technical field of wind power, in particular to a cooling system for a complete machine of a wind power generating set, a control method thereof, and a wind generating set with the cooling system for a complete machine. Background technique [0002] Wind power generators convert nature's green energy wind energy into electrical energy, and the electricity generated by it is transported to the load centers of various electricity consumers through the power system. With the increasing capacity of the unit, the heat generation of each heating component of the wind turbine is also increasing. Excessive heat will easily lead to life loss, high failure and shutdown of the wind turbine, which will bring huge hidden dangers and Economic losses. At present, in wind turbines, fans can be used to introduce external cold air into the nacelle or tower for heat dissipation. [0003] The inventors have found through research that due to...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F03D11/00F03D7/04
CPCY02E10/72
Inventor 方涛白洛林姜桐举
Owner BEIJING GOLDWIND SCI & CREATION WINDPOWER EQUIP CO LTD
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