Title :
Power subsystem for small satellites with unified operational mode controller
Author :
Varadi, Zsolt ; Gorocz, Vilmos ; Szabo, Jozsef
Author_Institution :
IEEE Conference Publishing, Budapest, Hungary
Abstract :
This paper presents a novel unified three domain control unit for onboard power management in small satellite power systems. The control unit consists of several autonomous auto-oscillating MPPTs (Maximum Power Point Tracker), a CV (Constant Voltage) control and a CC (Constant Current) control of charging the battery. The introduced circuits were developed for a high reliability power subsystem with unregulated power bus topology. A combination of distributed and centralized circuits are used to provide an efficient single point failure free solution for battery charging and solar array power management.
Keywords :
battery chargers; electric current control; solar cell arrays; solar power satellites; voltage control; autonomous autooscillating MPPT; battery charging; constant current control; constant voltage control; high reliability power subsystem; maximum power point tracker; onboard power management; single point failure; small satellites; solar array power management; three domain control unit; unified operational mode controller; unregulated power bus topology; Arrays; Batteries; Noise; Satellites; Topology; Voltage control; Voltage measurement;
Conference_Titel :
Space Technology (ICST), 2011 2nd International Conference on
Conference_Location :
Athens
Print_ISBN :
978-1-4577-1874-8
DOI :
10.1109/ICSpT.2011.6064687
