Research on the Model Construction and Characteristics of Solar Radiation Received by Solar Wing Coupled with Compound Parabolic Concentrator

Coupling compound parabolic concentrators with solar wings can effectively reduce energy costs. This approach enhances the economic benefits of satellite systems and broadens the application scope of the concentrators. Considering the operational characteristics of solar wings, this paper proposes a truncated design for compound parabolic concentrators. The design integrates real-time data on the sun–earth distance, the sun–satellite positional relationship, and space radiation theory to construct a comprehensive solar radiation reception model. This model is applicable for analyzing and optimizing arbitrary satellite operational orbits. The research demonstrates that the designed concentrator maintains favorable optical efficiency within its retention angles, and its concentrating characteristics are consistent with theoretical predictions. Moreover, within the acceptance half-angle, the uniformity index of the energy flux distribution on the solar wing is approximately 0.54. The numerical values of the theoretical radiation model align closely with simulation results, indicating its accuracy. Notably, the theoretical peak power generation of the solar wing with the proposed concentrator is increased by approximately 87% compared to a conventional solar wing. These findings provide important references for the design and optimization of satellite energy supply systems.