基于涡激振动的风力机受风体及无叶式垂直轴风力发电机

• Format: Patent
• Language: Chinese
• Published: 01.12.2023
• Subjects: BLASTING; HEATING; LIGHTING; MACHINES OR ENGINES FOR LIQUIDS; MECHANICAL ENGINEERING; OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR; PRODUCING MECHANICAL POWER; WEAPONS; WIND MOTORS; WIND, SPRING WEIGHT AND MISCELLANEOUS MOTORS

本发明公开了一种基于涡激振动的风力机受风体及无叶式垂直轴风力发电机，属于风力发电设备技术领域，受风体包括中心轴、伸缩骨架及外部包裹层，由动力机构驱动的伸缩骨架设于中心轴外部，中心轴上还设有用于改变受风体自振频率的调节组件。通过动力机构驱动伸缩骨架沿着中心轴的径向扩张与伸缩，改变受风体外形尺寸并使其增大后外形呈上小下大状；通过改变调节组件的上下位置来改变受风体自振频率；借助伸缩骨架外部的包裹层来保证受风体的气动外形。本发明能够精确控制旋涡脱落频率和受风体自振频率，保证大范围风速下锁频；含有该受风体的无叶式垂直轴风力发电机提高了风能利用率，具有发电效率高、抗风能力强、启动迅速、维修保养简单的优点。 The invention discloses a wind turbine wind receiving body based on vortex-induced vibration and a vaneless vertical-axis wind turbine, and belongs to the technical field of wind power generation equipment. The wind receiving body comprises a center shaft, a telescopic framework and an external wrapping layer, and the telescopic framework driven by a power mechanism is arranged outside the center shaft; the center shaft is further provided with an adjusting assembly used for changing the natural vibration frequency of the wind receiving body. The power mechanism drives the telescopic framework to expand and stretch out and draw back in the radial direction of the center shaft, the appearance size of the wind recei