摘要
在定日镜场的最优参数选择问题中,通过栅格化方法将定日镜面离散分割,求解阴影遮挡效率和截断效率,以计算定日镜场年平均输出热功率;建立单目标优化模型,采用控制变量法依次对镜面高度、相邻定日镜间距等变量单独分析,以降低庞大的解空间维度;通过试算得到镜场年平均输出热功率关于各变量的变化曲线,利用0.618法等方法搜索曲线极值点,得到定日镜场参数的近似最优解.
In the optimal parameter selection problem of the heliostat field,the heliostat surfaces are discretely divided using rasterizing method,and the shadow efficiency and truncation efficiency are solved to calculate the annual average output thermal power of the heliostat field.A single-objective optimization model is established,and the control variable method is used to analyze the height of heliostat surface,spacing between adjacent heliostats and other variables separately in order to reduce the huge dimension of solution space.By trial calculation,the curves of the annual average output thermal power of the heliostat field with respect to each variable are obtained.The extreme points of the curves are searched using methods such as 0.618 method,and the approximately optimal parameters of the heliostat field are obtained.
作者
官思扬
方俊杰
辜榆帆
张勇
GUAN Siyang;FANG Junjie;GU Yufan;ZHANG Yong(School of Information and Communication Engineering,University of Electronic Science and Technology of China,Chengdu,Sichuan 611731,China;Glasgow College,University of Electronic Science and Technology of China,Chengdu,Sichuan 611731,China;School of Mathematical Sciences,University of Electronic Science and Technology of China,Chengdu,Sichuan 611731,China)
出处
《数学建模及其应用》
2024年第1期44-51,共8页
Mathematical Modeling and Its Applications
关键词
定日镜场
栅格化
单目标优化
控制变量法
0.618法
heliostat field
rasterizing
single-objective optimization
control variable method
0.618 method
