Power subsystem for small satellites with unified operational mode controller

Author

Varadi, Zsolt ; Gorocz, Vilmos ; Szabo, Jozsef

Author_Institution

IEEE Conference Publishing, Budapest, Hungary

fYear

2011

fDate

15-17 Sept. 2011

Firstpage

1

Lastpage

4

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Space Technology (ICST), 2011 2nd International Conference on

Conference_Location

Athens

Print_ISBN

978-1-4577-1874-8

Type

conf

DOI

10.1109/ICSpT.2011.6064687

Filename

6064687