AIR COOLING SYSTEM, WIND TURBINE GENERATOR UNIT AND COOLING METHOD THEREFOR

WIPO Patent Application WO/2021/082456

A1

An air cooling system, and a wind turbine generator unit and a cooling method therefor. The air cooling system allows for communication between a nacelle (C) of the wind turbine generator unit and an electric generator (M), and comprises: two or more independently operated subsystems (S), each subsystem comprising: a dehumidifying device (2) mounted on a wall section of the nacelle and communicated with the nacelle; and a driving device (3) mounted inside of the nacelle in order to draw external cooling air through the dehumidifying device into the nacelle, mix said air with a portion of the high-temperature air discharged from the air outlet (O) of the electric generator, and carry out heat exchange with heat-emitting components of the nacelle and/or the electric generator; wherein the driving devices of the two or more subsystems operate simultaneously in order to implement a first function in respect of the wind turbine generator unit; and the driving devices of the two or more subsystems operate separately in an alternating fashion for a predetermined amount of time in order to implement a second function in respect of the wind turbine generator unit. The present air cooling system expands the functionality of air cooling systems.

BAI LUOLIN (CN)
SØRENSEN PETER HESSELLUND (CN)
ZHANG JINGYI (CN)

PCT/CN2020/095086

May 06, 2021

June 09, 2020

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XINJIANG GOLDWIND SCIENCE & TECH CO LTD (CN)

F03D80/60

CN109642553A	2019-04-16
CN109642553A	2019-04-16
CN105736258A	2016-07-06
CN110725779A	2020-01-24
CN206329458U	2017-07-14
CN108894934A	2018-11-27
EP3279469A1	2018-02-07

See also references of EP 4043726A4

BEIJING EAST IP LTD. (CN)

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