The electrical part of the solar generator of automated transfer vehicle solar array

The Electrical Part of the Solar Generator (EPSG) of the European Automated Transfer Vehicle (ATV) is part of the Power System of the ATV satellite, one of the main elements contributing to the International Space Station. The EPSG is installed on a deployable Solar Array composed of 4 wings; each wing is composed of 4 panels whose dimensions are 1820 /spl times/ 1150 mm/sup 2/. The layout is arranged in 2 identical sections of 3 in-parallel connected strings composed of 135 solar cells in series. The main requirements of the ATV EPSG are: to provide 1155 W @ 56.5 V per wing at SADM interface; capability to work under high angle of incidence and shadow pattern induced by the International Space Station (ISS); capability to withstand contamination environment induced by thruster plumes, material outgassing and ATOX erosion. Galileo Avionica design and manufacturing allows to meet all functional, performance and interface requirements.