| 基于遗传算法的变桨型风力机翼型设计 |
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| 引用本文： | 吴江海,王同光.基于遗传算法的变桨型风力机翼型设计[J].南京航空航天大学学报,2011,43(5). |
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| 作者姓名： | 吴江海 王同光 |
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| 作者单位： | 南京航空航天大学江苏省风力机设计高技术研究重点实验室; |
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| 基金项目： | 国家重点基础研究发展(“九七三”计划)(2007CB714600)资助项目; 江苏高校优势学科建设工程资助项目 |
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| 摘 要： | 从提高叶片效率和降低叶片输出载荷两方面对翼型的设计要求进行了分析,并直接以叶片的综合性能为目标,采用遗传算法耦合XFOIL进行翼型的优化设计,最终以计算流体力学(Computational fluid dynamics,CFD)的计算结果作为翼型性能的评价依据,设计了相对厚度从18%到30%四个风力机专用翼型。从理论上分析了翼型形状改变与性能改善之间的对应关系。结果显示,与行业内成熟的翼型相比,新翼型在效率控制区内能取得更好的升阻力特性,同时在载荷控制区内能减小升力系数,因而采用该族翼型能够在提高叶片的发电量同时减小叶片的输出载荷,为叶片带来更好的综合性能。
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| 关 键 词： | 风力机翼型 评价指标 叶片性能 优化设计 |
Optimization Design of Airfoils for Variable-Pitch Wind Turbines Based on Genetic Algorithms |
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| Wu Jianghai,Wang Tongguang.Optimization Design of Airfoils for Variable-Pitch Wind Turbines Based on Genetic Algorithms[J].Journal of Nanjing University of Aeronautics & Astronautics,2011,43(5). |
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| Authors: | Wu Jianghai Wang Tongguang |
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| Institution: | Wu Jianghai,Wang Tongguang(Jiangsu Key Laboratory of Hi-Tech Research for Wind Turbine Design,Nanjing University of Aeronautics & Astronautics,Nanjing,210016,China) |
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| Abstract: | The design requirements of wind turbine airfoils is analyzed in terms of the aerodynamic efficiency and the load output.The blade gross performance is directly set as the design objective for aerofoil optimization,and genetic algorithm is used in the design procedure.Computational fluid dynamics (CFD) and the software XFOIL are used to calculate the airfoil aerodynamic characteristics.Finally,a four-airfoil family for pitch-regulated wind turbines is designed with thicknesses ranging from 18% to 30%.The res... |
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| Keywords: | wind turbine aerofoil design objective blade performance optimization design |
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