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Pré-Publication, Document De Travail Année : 2018

Stable Model Predictive Strategy for Rendezvous Hovering Phases Allowing for Control Saturation

Résumé

This paper presents a model predictive control strategy for the hovering phases of the impulsive spacecraft rendezvous problem producing a convergent sequence of relative trajectories, even under propellers saturation constraints. Adopting a linearized dynamics for the relative spacecraft dynamics , we present a parametrization of the relative trajectories. This parametrization and the constraints describing the hovering zones are employed in the formulation of the impulsive fuel-optimal control strategy, which is then proved to be stable. Numerical methods are proposed to solve the optimization problems characterizing each call of the controller. Finally, hardware-in-the-loop simulations using a synthesized LEON3 microprocessor and linear and disturbed nonlinear models for the relative dynamics are performed to assess the efficiency and robustness of the proposed approach.
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Dates et versions

hal-01678768 , version 1 (09-01-2018)
hal-01678768 , version 2 (05-11-2018)

Identifiants

  • HAL Id : hal-01678768 , version 1

Citer

Paulo Ricardo Arantes Gilz, Mioara Joldes, Christophe Louembet, Frédéric Camps. Stable Model Predictive Strategy for Rendezvous Hovering Phases Allowing for Control Saturation. 2018. ⟨hal-01678768v1⟩
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