基于遗传算法的水平轴海流发电机叶片优化方法
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摘要
提出一种基于遗传算法优化(GA)的水平轴海流发电机叶片优化方法,采用Xfoil和BEMT作为分析工具,适用于二维翼型和三维叶片的多目标优化,并以此为基础编写一套叶片优化程序。该优化方法在增加叶片获能效率和减小推力方面具有显著效果,同时对于翼型性能的提升也同样出色。
The paper presents an optimization approach for both hydrofoils and blades, which has been developed based on genetic algorithm(GA).The GA code controlled Xfoil is applied to analyze the hydrofoils lift and drag while the blade element momentum theory is applied for the blade analysis. The geometry of both blade and hydrofoils are optimized holistically. An optimum design for blade with variable setting angle is obtained, and the performance of optimized blade in shear flow is evaluated as well.
The paper presents an optimization approach for both hydrofoils and blades, which has been developed based on genetic algorithm(GA).The GA code controlled Xfoil is applied to analyze the hydrofoils lift and drag while the blade element momentum theory is applied for the blade analysis. The geometry of both blade and hydrofoils are optimized holistically. An optimum design for blade with variable setting angle is obtained, and the performance of optimized blade in shear flow is evaluated as well.
引文
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[9]AHMED M R.Blade Sections for Wind Turbine and Tidal Current Turbine Applications-Current Status and Future Challenges[J].International Journal of Energy Research,2012,36(7):829-844.
[10]余龙,张仕骏,兀丰凯,等.海流发电机翼型研发进展及优化设计研究[J].船舶工程,36(4):1-5.
[2]BATTEN W M J,BAHAJ A S,MOLLAND A F,et al.The Prediction of the Hydrodynamic Performance of Marine Current Turbines[J].Renewable Energy,2008,33(5):1085-1096.
[3]林勇刚,李伟,刘宏伟,等.水下风车海流能发电技术[J].浙江大学学报(工学版),2008,42(7):1242-1246.
[4]汪鲁兵,张亮,李凤来.潮流发电水轮机基于动量定理的性能计算方法研究[J].海洋工程,2005,23(1):97-102.
[5]李凤来,李志川,张亮,等.可控偏角垂直轴水轮机试验研究[J].太阳能学报,2012,33(7):1142-1148.
[6]何煜平.水平轴海流机叶片与漂浮式支撑的设计与研究[D].上海:上海交通大学,2013.
[7]席裕庚,柴天佑.遗传算法综述[J].控制理论与应用,1996,13(6):697-708.
[8]何煜平,杨建民.水平轴海流能发电机叶片设计与性能分析[J].海洋工程,2013,31(2):71-82.
[9]AHMED M R.Blade Sections for Wind Turbine and Tidal Current Turbine Applications-Current Status and Future Challenges[J].International Journal of Energy Research,2012,36(7):829-844.
[10]余龙,张仕骏,兀丰凯,等.海流发电机翼型研发进展及优化设计研究[J].船舶工程,36(4):1-5.