A Minimum-Fuel Fixed-Time Low-Thrust Rendezvous Solved with the Switching Systems Theory

Abstract : In this paper, a fuel optimal rendezvous problem is tackled in the Hill-Clohessy-Wiltshire framework with several operational constraints as bounds on the thrust, non linear non convex and disjunctive operational constraints (on-off profile of the thrusters, minimum elapsed time between two consecutive firings...). An indirect method and a decomposition technique have already been combined in order to solve this kind of optimal control problem with such constraints. Due to a great number of parameters to tune, satisfactory results are hard to obtain and are sensitive to the initial condition. Assuming that no singular arc exists, it can be shown that the optimal control exhibits a bang-bang structure whose optimal switching times are to be found. Noticing that a system with a bang-bang control profile can be considered as two subsystems switching from one with control on to with control off, and vice-versa, a technique coming from the switching systems theory is used in order to optimise the switching times.
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Communication dans un congrès
26th International Symposium on Space Flight Dynamics (ISSFD 2017), Jun 2017, Matsuyama, Japan. 6p., 2017
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  • HAL Id : hal-01511019, version 1

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Clément Gazzino, Denis Arzelier, Luca Cerri, Damiana Losa, Christophe Louembet, et al.. A Minimum-Fuel Fixed-Time Low-Thrust Rendezvous Solved with the Switching Systems Theory. 26th International Symposium on Space Flight Dynamics (ISSFD 2017), Jun 2017, Matsuyama, Japan. 6p., 2017. 〈hal-01511019〉

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