Force analysis and energy harvester scheme determination of vertical axis wind turbine
Conference: MEMAT 2022 - 2nd International Conference on Mechanical Engineering, Intelligent Manufacturing and Automation Technology
01/07/2022 - 01/09/2022 at Guilin, China
Proceedings: MEMAT 2022
Pages: 4Language: englishTyp: PDF
Authors:
Mo, Qiuyun (Department of Mechanical and Electrical Engineering, Guilin University of Electronic Technology, Guilin, Guangxi, China & Guangxi Key Laboratory of Manufacturing System and Advanced Manufacturing Technology, Guilin, Guangxi, China)
Liu, Yanyan; Guo, Rongbin; Wang, Guoqiang; Li, Le (Department of Mechanical and Electrical Engineering, Guilin University of Electronic Technology, Guilin, Guangxi, China)
Abstract:
The change of the energy gradient on the surface of the rotating blades of the vertical axis wind turbine directly affects the reasonable layout design of the energy harvester on the blades. To explore the change of the energy gradient on the surface of the wind turbine blade during the rotation process, firstly, computational fluid dynamics is used to analyze the dynamic force field of the wind turbine blade under different working conditions, and the aerodynamic load on the surface of the wind turbine blade is obtained; secondly, according to the blade surface. The magnitude of the energy gradient determines the installation area of the energy harvester on the blade. The results show that the tangential force on the blade surface increases with the increase of speed. When the wind wheel is at an azimuth angle of 90deg in the upwind zone, the blade tangential force has a maximum value of 22.9N; during the rotation of the wind wheel, the leading edge of the blade The regional energy gradient changes greatly, and the distribution of energy collectors should be arranged in this area to collect most of the dissipated energy, thereby improving the energy utilization rate of the wind turbine.