Nonlinear MPC based coordinated control of towed debris using tethered space robot

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Using tethered space robot (TSR) for active debris removal (ADR) is promising but subject to collision and entanglement due to the debris tumbling. To detumble the towed debris, this paper proposes the nonlinear model predictive control (NMPC) based coordinated control strategy. The TSR consists of a gripper for capture, thrusters and a tethered manipulator (TM) with variable length to which the tether is attached. The proposed strategy works in the way that the TM coordinates with the thrusters for de-tumbling by changing its length accordingly so that the tension torque can be adjusted. The attitude model of the debris is first established, followed by the definition of attitude equilibrium. The NMPC is then designed with the prediction model discretized by 4-order Runge-Kutta method. Simulation results validate this strategy and show that the debris attitude can maneuver to the equilibrium smoothly in the presence of the constraints on TM and thrusts.

Original languageEnglish
Title of host publicationIntelligent Robotics and Applications - 10th International Conference, ICIRA 2017, Proceedings
EditorsHonghai Liu, YongAn Huang, Hao Wu, Zhouping Yin
PublisherSpringer Verlag
Pages698-706
Number of pages9
ISBN (Print)9783319652979
DOIs
StatePublished - 2017
Event10th International Conference on Intelligent Robotics and Applications, ICIRA 2017 - Wuhan, China
Duration: 16 Aug 201718 Aug 2017

Publication series

NameLecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
Volume10464 LNAI
ISSN (Print)0302-9743
ISSN (Electronic)1611-3349

Conference

Conference10th International Conference on Intelligent Robotics and Applications, ICIRA 2017
Country/TerritoryChina
CityWuhan
Period16/08/1718/08/17

Keywords

  • Active debris removal
  • Model predictive control
  • Tethered space robot

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