SSPS-OMEGA超大型球形聚光器结构拓扑构型与设计

为同时兼顾千米量级尺度空间太阳能电站聚光系统的在轨发射安装难度、光学收集效率、稳定性及结构工艺等多方面的因素，提出采用基于球面正多面体的经纬线划分法模块化构建球形聚光器。该方法不仅可实现基础划分单元分布均匀、规格种类少，降低在轨构建与运载发射难度。而且只要合理控制弧高等分数和基础划分单元的口径就可以同时保证聚光系统的光学收集效率。理论与仿真结果显示，当弧高等分数为24时，该划分法共有25种基础单元件，整个球面被分成5762块。并且此时模块化构建的实际球形聚光器的光学收集效率与理想球面相比基本保持不变，解决了太阳能电站聚光系统设计中存在的关键问题。

Mesh and Construction to Ultra Large Scale Spherical Concentrator in SSPS OMEGA

How to mesh the large-scale spacesolar concentrator system, reduce its construction and launch difficulty on orbit and simultaneously guarantee the light collection efficiency have always been very complex and difficult problems in the current space solar concentrator systems. As for these problems, a mesh method based on the meridian and parallel of the spherical polyhedron is proposed to modularize the spherical concentrator. This approach offers a mesh with fewer evenly distributed basic dividing cells. Also, the aperture of the basic cell can be easily controlled by optimally selecting the dividing fraction of the circular arc height to guarantee the light collection efficiency at the same time. The theoretical and simulated results indicate that when selecting the dividing fraction of the circular arc height of 24, the types and total number of the dividing cells are 25 and 5765 respectively. In this case, the light collection efficiency remains the same before and after the spherical concentrator is meshed. These results show that the proposed mesh method has fundamentally solved the crucial issues in the space solar concentrator systems.