Structural Design and Analysis of Small Compound Wind Turbine

• Main Authors: Chun-Yao Chang, 張尊堯
• Other Authors: Chin-Pao Cheng
• Format: Others
• Language: zh-TW
• Published: 2011
• Online Access: http://ndltd.ncl.edu.tw/handle/42116348038574167028

碩士 === 國立臺灣師範大學 === 機電科技研究所 === 99 === Owing to the higher conversion efficiency of wind energy, the general commercial wind turbine blades are mostly horizontal axis types in recently. However, the blades need to against directly the wind flow, and follow the change of wind flow direction to rotate the fuselage of the wind turbine generator. So, it may cause the fracture situation of blades by strong wind force after a long-period operation. In order to improve this situation, this study will design a compound wind turbine blades system by modifying the vertical axis type blades. The main purpose of this study is to use the software with guards on the three-blade wind turbine analysis, and confirms the operation of this compound wind turbine blades system is feasible. The analysis result show, the blade angle of attack at 36° has higher thrust to starting the wind turbine. The blade angle of attack at 0° has higher energy transformation efficiency than other angles of attack. If we change wind velocity the energy transformation efficiency were not different, so we can have more steady flow field for this compound wind turbine.