Regulation of magnetically.pdf (3.48 MB)
Regulation of magnetically actuated satellites using model predictive control with disturbance modelling
The problem of magnetic attitude regulation of
low Earth orbiting satellites is addressed using model predictive
control. This paper considers extending the current literature
within this area by combining a standard predictive controller
with a suitable disturbance model. For low Earth orbiting
satellites the disturbances due to the external environment are
very significant and consideration of these torques within the
control law is imperative to obtain the best possible controller
performance. In order to obtain an estimate of the external
disturbance, a state estimator of varying complexity is used.
This estimator initially assumes that the disturbances acting on
the satellite remain constant with time, but this assumption is
then improved to assume harmonic variation of the disturbance.
Simulations show that inclusion of a feed-forward element to
the control offers notable performance benefits. Interestingly,
increasing the complexity of the disturbance model seems to
offer little improvement in performance and a simple constant
disturbance model provides a suitable solution to the problem
while maintaining simplicity of the state estimator.
History
School
- Aeronautical, Automotive, Chemical and Materials Engineering
Department
- Aeronautical and Automotive Engineering
Citation
WOOD, M and CHEN, W-H., 2008. Regulation of magnetically actuated satellites using model predictive control with disturbance modelling IN: IEEE International Conference on Networking, Sensing and Control, 2008. ICNSC 2008, 6-8 April, Sanya, China, pp. 692-697.Publisher
© IEEEPublication date
2008Notes
This is a conference paper [© IEEE]. It is also available from: http://ieeexplore.ieee.org/ Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.ISSN
9781424416868Language
- en