ChenWood_IMechE_Proc_I_222_16.pdf (546.81 kB)
Model predictive control of low Earth-orbiting satellites using magnetic actuation
This paper presents a model predictive control approach for regulating the attitude
of magnetically actuated satellites. Unlike other contributions in this area, a predictive control
approach is developed which guarantees closed-loop stability of satellite configurations with
unstable open-loop pitch dynamics. With the pitch axis being unstable, two magnetic dipoles
are used exclusively for regulation of this axis. This allows the dynamics to be treated as a linear
time-invariant system, and a simple proportional–derivative (PD) scheme is implemented. A
model predictive controller is designed to regulate the lateral dynamics, with a Lyapunov
function derived to guarantee asymptotic stability of the closed-loop system. The regulation of
the lateral dynamics is achieved with a singe dipole moment, with a novel reformulation of the
lateral dynamics also providing an explicit link between the two controllers. Simulations
demonstrate the effectiveness and stability of the proposed algorithm when applied to the
European Space Agency’s GOCE satellite.
History
School
- Aeronautical, Automotive, Chemical and Materials Engineering
Department
- Aeronautical and Automotive Engineering
Citation
WOOD, M. and CHEN, W-H, 2008. Model predictive control of low Earth-orbiting satellites using magnetic actuation. Proceedings of the Institution of Mechanical Engineers, Part I: Journal of Systems and Control Engineering, 222 (6), pp. 619-631 [10.1243/09596518JSCE505]Publisher
© IMechE / Professional Engineering PublishingPublication date
2008Notes
This journal article was published in the journal, Proceedings of the Institution of Mechanical Engineers, Part I [© IMechE] and is also available at: http://journals.pepublishing.com/content/119778ISSN
0959-6518Language
- en