Bearing cooling system, bearing cooling method and wind generating set

The invention provides a bearing cooling system, a bearing cooling method and a wind generating set. The bearing cooling system comprises an outer ring cooling system and an inner ring cooling system, wherein the outer ring cooling system comprises a first heat dissipation assembly which is installed at the position corresponding to the outer side wall of a bearing outer ring; and the inner ring cooling system comprises a second heat dissipation assembly which is installed at the position corresponding to the inner side wall of the bearing inner ring. According to the bearing cooling system, a bearing of the wind generating set can be cooled, and the temperature of the bearing is reduced. 本发明提供了一种轴承冷却系统、轴承冷却方法和风力发电机组。轴承冷却系统包括外圈冷却系统和内圈冷却系统，其中，外圈冷却系统包括第一散热组件，安装在与轴承外圈外侧壁对应的位置；内圈冷却系统包括第二散热组件，安装在与轴承内圈内侧壁对应的位置。本发明的轴承冷却系统能够对风力发电机组的轴承进行冷却，降低轴承温度。