Title :
Adaptive control of an orbiting single tether system
Author :
Walls, Justin ; Greene, Michael
Author_Institution :
Dept. of Electr. Eng., Auburn Univ., AL, USA
Abstract :
The tethered satellite system (TSS) is a shuttle-based system that consists of a subsatellite connected by a single tether to a boom/reel mechanism located in the orbiter payload bay. A control law for the TSS, based on universal adaptive control (UAC) techniques, is developed. A nonlinear model of the TSS is formulated so that the linear controller can be evaluated, and comparison is made with results obtained with alternate control laws. Advantages of the UAC include its design simplicity and the fact that the specific TSS model is never used. Simulation results for the closed-loop system for the station-keeping mode with various-length trajectories show the feasibility of the method
Keywords :
adaptive control; artificial satellites; atmospheric techniques; ionospheric techniques; nonlinear control systems; position control; Space Shuttle; boom/reel mechanism; closed-loop system; ionosphere; nonlinear model; orbiting single tether system; shuttle-based system; station-keeping mode; subsatellite; tethered satellite system; universal adaptive control; upper atmosphere; Adaptive control; Aerodynamics; Control systems; Motion control; Nonlinear equations; Optimal control; Plasma measurements; Probes; Satellites; Space missions;
Conference_Titel :
System Theory, 1989. Proceedings., Twenty-First Southeastern Symposium on
Conference_Location :
Tallahassee, FL
Print_ISBN :
0-8186-1933-3
DOI :
10.1109/SSST.1989.72537
