The Shape Optimization of Wind Turbine Blades Based on Multidisciplinary Design Optimization
-
摘要: 以风力机空气动力特性、叶片结构动力学以及风力机功率特性等学科为基础,探讨了各学科在叶片设计过程中的关系;以风轮单位输出能量成本作为目标函数,提出了风力机叶片的多学科优化设计模型。在保持叶片长度和风轮转速不变的情况下,以叶片的弦长、扭角以及相对厚度为设计变量,对某5 MW风力机叶片进行了优化设计,使得风轮的单位输出能量成本降低了2.6%。比较分析了优化叶片和原始叶片的载荷分布以及优化风轮和原始风轮的功率特性,很好的验证了优化结果。Abstract: Based on the aerodynamics of wind turbine,structural dynamics of blades and output power performance,the relationship between them was discussed.The multidisciplinary design optimization model of the blades was presented whereas the objective was cost of energy which is calculated from the Annual Energy Production(AEP) and the cost of the whole rotor.Using this model,a 5 MW rotor was optimized and the design variables were the chord,twist angle and relative thickness of blades.The cost of the optimized rotor was reduced by 2.6% comparing with the original rotor.To valide the optimization results,the comparison of the load between the optimized and original blade were calculated and plotted.
-
[1] 贺德馨等.风工程与工业空气动力学[M].北京:国防工业出版社,2006 [2] 王立存,陈进.基于多学科设计优化的通用涡旋型线形状优化[J].华中科技大学学报(自然科学版),2008,36(3):12~15 [3] Hansen M O L.Aerodynamics of Wind Turbines[M].Jamesand James(Science Publishers)Ltd,2000 [4] Fuglsang P,Madsen H A.Optimization method for wind turbinerotors[J].Journal of Wind Engineering and Industrial Aero-dynamics,1999,80:191~206 [5] Fuglsang P,Thomsen K.Site-specific design optimization of1.5~2.0 MW wind turbines[J].Journal of Solar Energy Engi-neering,2001,123:296~303 [6] Jureczko M,et al.Optimisation of wind turbine blades[J].Jour-nal of Material Processing Technology,2005,167:463~471
点击查看大图
计量
- 文章访问数: 191
- HTML全文浏览量: 27
- PDF下载量: 7
- 被引次数: 0