基于响应面法的垂直轴风力机结构参数优化
摘要:为提高垂直轴风力机的风能利用率,常采用正交分析结合数值模拟的方法进行结构参数优化。然而,正交分析法的因素水平值设置对优化结果有较大影响。为此,利用响应面法结合遗传算法(genetic algorithm,GA)对垂直轴风力机结构参数进行优化。首先,采用响应面中心复合设计(central composite design, CCD)法构建了风力机的回归模型,并通过计算流体力学(computational fluid dynamics, CFD)方法和方差分析研究了结构因素对功率系数影响的显著性顺序。然后,基于GA对其进行结构参数优化,并与传统的正交分析法进行对比。最后,结果表明响应面法得到的风力机最大功率系数为0.193,比正交分析结果提高3.6%,且响应面法获得的结构最优参数值可处在给定的因素水平值区间范围外。
Abstract:In order to improve the utilization rate of wind energy of vertical axis wind rotor, the orthogonal analysis method combined with numerical simulation are usually used to optimize the structural parameters. However, the setting of factor values and level values for orthogonal analysis has a great influence on the optimization results. In this study, the structural parameters of vertical axis wind rotor are optimized by using response surface method (RSM) combined with genetic algorithm (GA). Firstly, the regression model of the wind rotor is constructed by central composite design (CCD) method, and the order of significance of the influence of structural factors on the power coefficient was studied by computational fluid dynamics (CFD) method and analysis of variance. Then, the structural parameters are optimized based on GA and compared with the traditional orthogonal analysis method. The results show that the maximum power coefficient of the wind rotor obtained by the RSM is 0.193, which is 3.6% higher than the results of orthogonal analysis. The optimal parameter values obtained by the RSM can be outside the range of the given factor values and level values. Therefore, the optimal solution obtained by the RSM is more accurate and has better adaptability to the optimization of the structural parameters of the vertical axis wind rotor.
标题:基于响应面法的垂直轴风力机结构参数优化
title:Structural Parameter Optimization of Vertical Axis Wind Turbine Based on Response Surface Method
作者:王世博,宋磊,徐贤申,杨宗霄,苏建新
authors:WANG Shibo,SONG Lei,XU Xianshen,YANG Zongxiao,SU Jianxin
关键词:响应面法,垂直轴风力机,结构参数优化,正交分析,数值模拟,
keywords:response surface method,vertical axis wind rotor,structural parameter optimization,orthogonal analysis,numerical simulation,
发表日期:2023-11-17
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- 8.28 MB
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