Controller design for MSAT-a third generation spacecraft

Author

Davison, E.J.

Author_Institution

Dept. of Electr. Eng., Toronto Univ., Ont., Canada

fYear

1990

fDate

5-7 Dec 1990

Firstpage

2047

Abstract

The control of a large flexible space structure (LFSS) as modeled by the mobile communications satellite (MSAT) configuration is considered. In this problem, the MSAT vehicle is highly unsymmetric and highly flexible, with noncollocated sensors/actuators. It is desired to find a controller, based on a design model of MSAT, which, when applied to an unspecified evaluation model of MSAT, solves the following problems: regulating the orientation of MSAT (three outputs), regulating the horn/reflector relative position (six outputs) in the presence of unknown disturbances, stabilizing rigid body and elastic body modes of the system, and avoiding undesirable spillover effects caused by the controller (robustness). A summary of results obtained in designing a controller to solve the problem, together with some representative output simulations, is given

Keywords

artificial satellites; control system synthesis; distributed parameter systems; large-scale systems; spatial variables control; stability; asymmetric satellite; horn/reflector relative position; large flexible space structure; mobile communications satellite; noncollocated sensors/actuators; orientation control; stabilization; third generation spacecraft; unknown disturbances; unsymmetric flexible satellite; Actuators; Communication system control; Control systems; Radio frequency; Robust control; Robust stability; Servomechanisms; Shape control; Space vehicles; Weight control;

fLanguage

English

Publisher

ieee

Conference_Titel

Decision and Control, 1990., Proceedings of the 29th IEEE Conference on

Conference_Location

Honolulu, HI

Type

conf

DOI

10.1109/CDC.1990.203984

Filename

203984