Abstract The space solar power station is a gigantic power satellite to provide the earth with continuous energy. The front-end system of space solar power station, solar concentrator, has significant influences on the optical performance. Regarding the proposed orb-shaped membrane energy gathering array scheme, this paper deals with the construction strategy of its large-scale spherical concentrator to reduce the complexity of manufacturing and improve the optical properties. The optical principle of the spherical concentrator is described and the spatial motion characteristic is presented. A novel construction strategy for the large-scale concentrator is proposed via partitioning octahedron on the sphere and polygonal partition. This paper evaluates the optical performance of the concentrator constructed by the novel strategy using ray tracing method. Performance parameters such as optical concentration ratio and collection efficiency are obtained. Comparison with the other strategies are also implemented. In addition, influence factors such as the sun's non-parallelism, the tracking precision, the orbital periodic motion, and the potential blockage effects of microwave transmitting antenna and supporting structure are mathematically discussed and evaluated. The numerical results indicate that the proposed strategy achieves a high collection rate, a small efficiency fluctuation, appropriate energy distribution, and relatively small splicing modules, which is conducive to improve optical performance and decrease difficulty in manufacturing.

中文翻译：

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空间太阳能电站大型球形聚光器建设策略及性能分析

摘要 空间太阳能电站是一颗为地球提供源源不断能量的巨型动力卫星。空间太阳能发电站的前端系统太阳能聚光器对光学性能有显着影响。针对所提出的球形膜聚能阵列方案，本文研究了其大型球形聚光器的构建策略，以降低制造复杂性并提高光学性能。描述了球形聚光器的光学原理，并给出了空间运动特性。通过在球体上划分八面体和多边形划分，提出了一种新的大型聚光器构建策略。本文使用光线追踪方法评估了由新策略构建的聚光器的光学性能。获得诸如光学聚集比和收集效率等性能参数。还实施了与其他策略的比较。此外，对太阳的非平行性、跟踪精度、轨道周期运动、微波发射天线和支撑结构的潜在阻塞效应等影响因素进行了数学讨论和评估。数值结果表明，所提出的策略实现了高收集率、小效率波动、适当的能量分布和相对较小的拼接模块，有利于提高光学性能并降低制造难度。获得诸如光学聚集比和收集效率等性能参数。还实施了与其他策略的比较。此外，对太阳的非平行性、跟踪精度、轨道周期运动、微波发射天线和支撑结构的潜在阻塞效应等影响因素进行了数学讨论和评估。数值结果表明，所提出的策略实现了高收集率、小效率波动、适当的能量分布和相对较小的拼接模块，有利于提高光学性能并降低制造难度。获得诸如光学聚集比和收集效率等性能参数。还实施了与其他策略的比较。此外，对太阳的非平行性、跟踪精度、轨道周期运动、微波发射天线和支撑结构的潜在阻塞效应等影响因素进行了数学讨论和评估。数值结果表明，所提出的策略实现了高收集率、小效率波动、适当的能量分布和相对较小的拼接模块，有利于提高光学性能并降低制造难度。对太阳非平行性、跟踪精度、轨道周期运动、微波发射天线和支撑结构的潜在阻塞效应等影响因素进行了数学讨论和评估。数值结果表明，所提出的策略实现了高收集率、小效率波动、适当的能量分布和相对较小的拼接模块，有利于提高光学性能并降低制造难度。对太阳非平行性、跟踪精度、轨道周期运动、微波发射天线和支撑结构的潜在阻塞效应等影响因素进行了数学讨论和评估。数值结果表明，所提出的策略实现了高收集率、小效率波动、适当的能量分布和相对较小的拼接模块，有利于提高光学性能并降低制造难度。