Thermal Stress Matching and Buffer Layer design of flexible thin film solar module under wide-temperature-range in spaceOA

The flexible thin-film gallium arsenide solar cell and its array have the advantages of light flexibility,high photoelectric conversion efficiency,good radiation resistance,etc.,and are the key of the energy system of Space Solar Power Stations.The design service life of the Space Solar Power Station is more than 20 years,and the harsh and complex GEO high-orbit space environments bring a critical impact on the power generation performance and reliability of the flexible thin film solar arrays.Aiming at the functional decay caused by the thermal stress mismatch of flexible thin-film solar arrays under extreme thermal cycling and a significantly increased threat of radiation damage,this paper simulates and analyzes the impact of the extreme temperature changes on the performance of the composite forming flexible solar array under space conditions.It studied the thermal stress damage behavior,and designs a buffer layer structure to achieve thermodynamic matching through machine learning,effectively improves the thermodynamic compatibility and structural reliability of the flexible solar array.