A New Spacecraft Attitude Controller Considering Variable Saturation Limit of Flywheels Output Torque

Lin Tian; Shi Jie Xu

doi:10.4028/www.scientific.net/AMM.130-134.1564

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 130-134A New Spacecraft Attitude Controller Considering...

A New Spacecraft Attitude Controller Considering Variable Saturation Limit of Flywheels Output Torque

Abstract:

A new attitude controller is proposed in this paper considering variable flywheels output torque saturation limit. Control model is discussed while the time-varying and state-dependent torque saturation limit is derived. The new controller is similar to linear assignment of torque limit and covers attitude feedback information. With Lyapunov method, the asymptotic convergence of controlled system states is proved. The auxiliary parameter contained in the controller is guaranteed to be bounded to make sure that the control objective can be achieved. All of the simulation results validate the analysis and controller.

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Periodical:

Applied Mechanics and Materials (Volumes 130-134)

Pages:

1564-1567

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.130-134.1564

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Online since:

October 2011

Authors:

Lin Tian, Shi Jie Xu

Keywords:

Blushless DC Motor, Flywheels, Lyapunov Method, Spacecraft Attitude Control, Variable Input Saturation

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