The microsatellite project ALMASat-EO started in 2007 as a collaboration between the Microsatellite Lab of the University of Bologna in Forlì and ALMASpace s.r.l., a company established in 2006 as a spin-off of the same lab. The ALMASat-EO mission goals are the test of a compact, innovative multispectral camera for Earth observation and the test of a novel micropropulsion system for orbit control. This paper describes the ALMASat-EO microsatellite power system, pointing out the board architecture and the constraints which led the design choices, such as the power consumption rather than PCB dimensions or the weight. The design foresees the redundancy of the critical components to avoid single point failures, rising, in this way, the complexity of the architecture. Moreover, to improve the reliability of the system, latch current limiters (LCLs) have been introduced for each subsystem. Finally, solar arrays assembly procedure and technologies are presented as well as their design constraints due to the buck topology of the power system and the battery packs nominal voltage
F. Antonini, A. Tambini, P. Tortora (2011). ALMASat-EO Microsatellite Power System. BERLIN : R. Sandau, H.-P. Roeser, A. Valenzuela.
ALMASat-EO Microsatellite Power System
ANTONINI, FABIO;TORTORA, PAOLO
2011
Abstract
The microsatellite project ALMASat-EO started in 2007 as a collaboration between the Microsatellite Lab of the University of Bologna in Forlì and ALMASpace s.r.l., a company established in 2006 as a spin-off of the same lab. The ALMASat-EO mission goals are the test of a compact, innovative multispectral camera for Earth observation and the test of a novel micropropulsion system for orbit control. This paper describes the ALMASat-EO microsatellite power system, pointing out the board architecture and the constraints which led the design choices, such as the power consumption rather than PCB dimensions or the weight. The design foresees the redundancy of the critical components to avoid single point failures, rising, in this way, the complexity of the architecture. Moreover, to improve the reliability of the system, latch current limiters (LCLs) have been introduced for each subsystem. Finally, solar arrays assembly procedure and technologies are presented as well as their design constraints due to the buck topology of the power system and the battery packs nominal voltageI documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
