Artículo
A flatness-based predictive controller for six-degrees of freedom spacecraft rendezvous
Autor/es | Sánchez Merino, Julio César
Gavilán Jiménez, Francisco Vázquez Valenzuela, Rafael Louembet, Christophe |
Departamento | Universidad de Sevilla. Departamento de Ingeniería Aeroespacial y Mecánica de Fluidos |
Fecha de publicación | 2020 |
Fecha de depósito | 2021-06-08 |
Publicado en |
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Resumen | This work presents a closed-loop guidance algorithm for six-degrees of freedom spacecraft rendezvous with a passive target flying in an eccentric orbit. The main assumption is that the chaser vehicle has an attitude control ... This work presents a closed-loop guidance algorithm for six-degrees of freedom spacecraft rendezvous with a passive target flying in an eccentric orbit. The main assumption is that the chaser vehicle has an attitude control system, based on reaction wheels, providing the necessary torque to change its orientation whereas the number of thrusters is arbitrary. The goal is to design fuel optimal maneuvers while satisfying operational constraints and rejecting disturbances. The proposed method is as follows; first, the coupled translational and angular dynamics are transformed to equivalent algebraic relations using the relative translational states transition matrix and the attitude flatness property. Then, a direct transcription method, based on B-splines parameterization and discretization of time continuous constraints, is developed to obtain a tractable static program. Finally, a Model Predictive Controller, based on linearization around the previously computed solution, is considered to handle disturbances. Numerical results are shown and discussed. |
Identificador del proyecto | MTM2015-65608-P |
Cita | Sánchez Merino, J.C., Gavilán Jiménez, F., Vázquez Valenzuela, R. y Louembet, C. (2020). A flatness-based predictive controller for six-degrees of freedom spacecraft rendezvous. Acta Astronautica, 167, 391-403. |
Ficheros | Tamaño | Formato | Ver | Descripción |
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flatness_based_rendezvous.pdf | 1.412Mb | [PDF] | Ver/ | |