Cooling system and cooling method for wind generating set and wind generating set

Abstract

The invention provides a cooling system and cooling method for a wind generating set and the wind generating set, and aims to improve the cooling efficiency of the cooling system and realize differential cooling of various components of the wind generating set. The cooling system comprises a plurality of cooling subsystems (11), the wind generating set comprise a plurality of groups of heating components (12), each group of heating components (12) correspond to one cooling subsystem (11), and each cooling subsystem (11) is used for carrying out heat exchange with the heating components corresponding to the cooling subsystem (11) through flowing cooling liquid. Due to the fact that the cooling liquid is adopted as a cooling medium, the cooling efficiency of the cooling system is improved; and each group of heating components correspond to one cooling subsystem, so that it is beneficial to realization of differential control over the temperature of each heating component of the wind generating set.

Description

technical field [0001] The invention relates to the technical field of wind power generation, in particular to a cooling system and cooling method of a wind power generating set, and a wind power generating set. Background technique [0002] Wind turbines are composed of blades, hubs, generators, nacelles, bases, towers, etc., and blades, hubs, and generators are all moving parts in the sky, so the connection of each part is particularly important. [0003] With the guidance of national policies, more and more wind turbines are currently erected on the sea, and the blades, hubs, generators and cabins are all located in the sky, and their maintenance costs will increase a lot. Therefore, the improvement of wind turbines and their The reliability of each component has become an urgent problem to be solved. [0004] During the operation of the wind turbine, the mechanical and electrical components will generate some heat, which will cause the temperature in the nacelle to rise...

AI Technical Summary

Problems solved by technology

[0004] During the operation of the wind turbine, the mechanical and electrical components will generate some heat, which will cause the temperature in the nacelle to rise, and when the temperature in the nacelle rises, the components will be adversely affected and reduce their own temperature. Reliability and life, even directly lead to damage or failure of electrical components, which will lead to increased operation and maintenance costs of wind turbines

[0005] For example: the eddy current loss of the generator in the prior art produces a large amount of heat loss inside the structure, and the overheating caused by the heat loss will lead to the irreversible demagnetization of the permanent magnet of the generator, so the generator needs a cooling device to cool it

[0006] The inventor of the present invention researched the cooling system of the prior art wind power generating set, and found that the cooling efficiency of the prior art cooling system was low, and the cooling system could not perform differentiated cooling on the components of the wind power generating set

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