Device and method for preventing blade from sweeping tower

The invention discloses a device and method for preventing blades from sweeping a tower, the device comprises radar sensors, an inclination angle adjusting mechanism, a hub, a spherical hinge and a blade root, the radar sensors are respectively mounted on the side wall and the top wall of a cabin of wind power equipment and the front wall and the side wall of a tower drum of the wind power equipment, and the hub is arranged on the cabin; the spherical hinge is arranged on the hub, the blade root is connected with the spherical hinge, the blade root is connected with a blade of the wind power equipment, and the inclination angle adjusting mechanism is connected with the spherical hinge. The blade inclination angle can be changed in real time according to the wind wheel surface monitoring condition, the blade tower sweeping accident caused by blade growth is effectively avoided, and the generating capacity is effectively improved. 本发明公开了一种防止叶片扫塔装置及方法，包括雷达传感器、倾角调节机构、轮毂、球铰链、叶根，风电设备的机舱的侧壁与顶壁以及风力设备的塔筒的前壁和侧壁分别安装有所述雷