Alternative Module Configurations for Advanced Solar Arrays on Low Orbit and Extended Lifetime Missions (Amoc 1)

摘要

The applicability and power improvement of the p-grid solar cell for low Earth orbit missions were assessed. The power improvement predicted analytically is confirmed by electrical performance measurements. Two measurement methods were used: separate illimination of front and rearside; and simultaneous illumination of front and rearside. Bifacial cells were bonded onto window type and continuous type substrates for electrical performance determination. Test samples composed of different substrate materials covered with solar cells or glass dummies were tested with respect to the expected thermal environment and mechanical behavior. Three favorable substrate designs were selected for a thermal cycling test: glass or carbon fiber reinforced Kapton modules, and treated glass cloth module. Electric performance increase is 10% to 15% after 15,000 cycles at plus or minus 100 C, compared to standard BSFR cells.