空间太阳能阵列光照的建模仿真及优化

针对空间救援飞行器在无控模式下，固定的太阳能阵列可能受到光线照射面积不足的问题，提出采用建模仿真及优化阵列布局的方法来提高任意光照角度下的受光面积。通过建立参数化驱动的空间飞行器外形几何模型、任意角度下的光线投射模型和考虑自身结构阴影遮挡的光照模型，研究空间任意光照角度下太阳能阵列接收光线照射的有效面积，并得到最低受光面积。基于建立的光照模型，采用遗传算法，对影响太阳能阵列布局的关键参数进行优化。可视化仿真结果校验了模型的有效性，优化结果显示算法收敛且获得了最优结果，满足空间无控飞行任务要求。

Modeling,Simulation and Optimization for Irradiation Area of Space Solar Arrays

The space solar arrays fixed on a rescue spacecraft staying in orbit without attitude control may not get enough irradiation area. This paper solves this problem by modeling, simulating and optimizing the layout of space solar arrays to increase their irradiation area in any orientation. In order to investigate the effective irradiation area in any irradiation orientation, this paper establishes the parameterization model of the spacecraft geometrical shape, the solar ray model in any irradiation orientation and the solar irradiation model with considering the shadows of the spacecraft structure. Based on the established irradiation model, this paper utilizes the genetic algorithm to optimize the key solar array layout parameters for increasing the minimum irradiation area. The visualization simulation results verify the validity of the proposed models. The optimization result indicates that the algorithm is convergent and achieves the effective irradiation area. This optimization result meets the requirement of the space flight mission.