Convex MPC and Thrust Allocation with Deadband for Spacecraft Rendezvous

Autor:	Taborda, Pedro, Matias, Hugo, Silvestre, Daniel, Lourenço, Pedro
Rok vydání:	2024
Předmět:	Electrical Engineering and Systems Science - Systems and Control Computer Science - Robotics
Druh dokumentu:	Working Paper
DOI:	10.1109/LCSYS.2024.3407611
Popis:	This paper delves into a rendezvous scenario involving a chaser and a target spacecraft, focusing on the application of Model Predictive Control (MPC) to design a controller capable of guiding the chaser toward the target. The operational principle of spacecraft thrusters, requiring a minimum activation time that leads to the existence of a control deadband, introduces mixed-integer constraints into the optimization, posing a considerable computational challenge due to the exponential complexity on the number of integer constraints. We address this complexity by presenting two solver algorithms that efficiently approximate the optimal solution in significantly less time than standard solvers, making them well-suited for real-time applications. Comment: Published in IEEE Control Systems Letters
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/2404.04197 Zobrazit plný text záznamu View this record from Arxiv