空间太阳能发电站聚光器的研究和设计

发布时间：2018-04-24 11:18

本文选题：SPS-ALPHA + 聚光器　；参考：《西安电子科技大学》2015年硕士论文

【摘要】：随着世界人口的增长及工业的发展,人类对能源的需求与日俱增,但人类主要依赖的化石能源逐渐枯竭,环境污染问题和气候问题变得更加严重。这种矛盾在未来会变得更加突出。寻找新能源来替代传统的化石能源变得刻不容缓。空间太阳能相对地面太阳能、风能、水能、核能等其他新能源具有储量巨大、安全、持续稳定的优点。美国的曼金斯教授2011年提出了解决空间太阳能发电的一种新的方案:SPS-ALPHA(Solar Power Satellite via Arbitrarily Large Phased Array),即任意大型相控阵太阳能卫星。但对外公开的资料并没有SPS-ALPHA具体的实现过程。本文的目的就是在研究SPS-ALPHA的基础上设计出SPS-ALPHA聚光器并实现它的建模和仿真,最终能够在光伏板上得到高聚光比和高均匀度的光斑。首先,在详细分析了SPS-ALPHA的结构的基础上,对聚光器主镜的母线方程参数进行优化。在matlab中建立SPS-ALPHA三维模型,截取一天内整点时刻的等效照射面积,通过图像处理的方法计算出其面积,当总面积最大的时候,母线方程的参数即最优;并分析了同层反射镜和上下层反射镜之间的制约关系。其次,针对SPS-ALPHA大规模建模问题,提出了利用Solid Works二次开发技术建立SPS-ALPHA聚光器主镜的模型,实现自动化建模;利用Optis Works光学仿真软件在Solid Works环境下对SPS-ALPHA进行光学仿真,实现了SPS-ALPHA建模仿真的一体化。然后,提出了确定聚光器主焦点的方法。在二次镜母线为抛物线和双曲线的基础下,分析了次镜焦距和主焦点的关系,建立SPS-ALPHA的物理数学模型,利用蒙特卡洛光线追迹方法优化出聚光器主焦点,从而确定次镜的焦距,并在Solid Works中用OptisWorks仿真验证结果的正确性。最后,在Solid Works中,对聚光器模型的每层块数和板间距进行对比优化,确定最佳值,使光斑能流密度最大,均匀度较好。
[Abstract]:With the growth of world population and the development of industry, the demand for energy is increasing. However, the fossil energy which is mainly relied on by man is gradually exhausted, and the problems of environmental pollution and climate become more and more serious. This contradiction will become more prominent in the future. It is urgent to find new energy to replace the traditional fossil energy. Compared with other new energy sources, such as surface solar energy, wind energy, water energy, nuclear energy and so on, space solar energy has the advantages of huge reserves, safety and stability. In 2011, Professor Mankins of the United States proposed a new scheme to solve the problem of space solar power generation:: SPS-ALPHAA Solar Power Satellite via Arbitrarily Large Phased Arrayn, that is, any large phased array solar satellite. However, there is no specific implementation process of SPS-ALPHA in the public information. The purpose of this paper is to design a SPS-ALPHA concentrator based on the research of SPS-ALPHA, and to realize its modeling and simulation. Finally, the spot with high concentration ratio and high uniformity can be obtained on the photovoltaic panel. Firstly, based on the detailed analysis of the structure of SPS-ALPHA, the parameters of busbar equation of concentrator primary mirror are optimized. The SPS-ALPHA 3D model is established in matlab, and the equivalent irradiating area at the whole point in a day is cut off. The area is calculated by image processing method. When the total area is the largest, the parameters of the busbar equation are optimal. The relationship between the mirror and the mirror is analyzed. Secondly, aiming at the problem of large-scale modeling of SPS-ALPHA, the model of primary mirror of SPS-ALPHA concentrator is established by using Solid Works secondary development technology, and the automatic modeling is realized, and the optical simulation of SPS-ALPHA is carried out under the environment of Solid Works by using Optis Works optical simulation software. The integration of SPS-ALPHA modeling and simulation is realized. Then, a method to determine the main focus of the concentrator is proposed. Based on the parabola and hyperbolic of the secondary mirror bus, the relationship between the focal length of the secondary mirror and the main focus is analyzed, and the physical mathematical model of SPS-ALPHA is established. The main focal point of the concentrator is optimized by the Monte Carlo ray tracing method, and the focal length of the secondary mirror is determined. The correctness of the results is verified by OptisWorks simulation in Solid Works. Finally, in Solid Works, the number of blocks in each layer and the plate spacing of the concentrator model are compared and optimized, and the optimum value is determined, so that the energy flow density of the spot is maximum and the uniformity is better.
【学位授予单位】：西安电子科技大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TM615;TK513.1

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