Abstract:

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.

Key words:  Space solar power station, Spherical concentrator, Meridian and parallel of the spherical polyhedron based mesh method, Topology construction