| 大型变截面翼型叶片与气动性能优化分析 |
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| 引用本文： | 杨敏,邢钢,邢诗蓉,王守艺. 大型变截面翼型叶片与气动性能优化分析[J]. 适用技术之窗, 2011, 0(7): 6-9 |
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| 作者姓名： | 杨敏 邢钢 邢诗蓉 王守艺 |
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| 作者单位： | [1]天津工业大学,天津300387 [2]东北师范大学,吉林长春130024 |
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| 摘 要： | 基于叶素．动量理论，以输出功率系数为优化目标、叶片的弦长、扭角和相对厚度为设计变量，建立叶片优化设计的数学模型。综合考虑轮毂和叶尖气动损失，对各变截面翼型的弦长和扭角进行了计算和修正。利用Matlab优化工具箱，对大型变截面翼型叶片进行优化的气动性能理论计算。以1．5Mw风力机叶片为例，比较了变截面翼型叶片和单一翼型叶片气动性能的计算结果，变截面翼型叶片的气动性能优于单一叶片的气动性能，为风力机叶片外形设计提供参考。
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| 关 键 词： | 风力机 叶片 变截面翼型 气动性能 |
Variable Cross Section Aerofoil Blade Design and Aerodynamic Optimization Analysis of Large Scale Wind Turbines |
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| Yang Min Xing Gang Xing Shirong Wang Shouyi. Variable Cross Section Aerofoil Blade Design and Aerodynamic Optimization Analysis of Large Scale Wind Turbines[J]. Science & Technology Plaza, 2011, 0(7): 6-9 |
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| Authors: | Yang Min Xing Gang Xing Shirong Wang Shouyi |
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| Affiliation: | Yang Min Xing Gang Xing Shirong Wang Shouyi(1 Tianjin Polytechnic University, Tianjin 300387; 2 Northeast Normal University, Jilin Changchun, 130024) |
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| Abstract: | Based on blade element momentum （BEM） theory, the optimum design model of blade is established by taking the maximum wind energy utilizing coefficient as the optimization objective, and the chord length, twist angle and the relative thickness as the optimizing variable, the chord length and twist angle of variable cross section aerofoil blades are calculated and revised according to the targets of both hub and tip losses. Matlab calculation toolbox is used to optimization calculate blade aerodynamic performance. Taking 1.5MW wind turbine blade for instance, the aerodynamic performance calculation is compared between the variable cross section and single cross section aerofoil blade. The results show that aerodynamic performance of variable cross section aerofoil blade is better than that of a single aerofoil, and can be used for reference in blade shape design of wind energy systems. |
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| Keywords: | Wind Turbine Blade Variable Eross Section Aerofoil Aerodynamic Performance |
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