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Tube-based stochastic model predictive control for spacecraft close proximity under external uncertainty

  • Yanquan Zhang
  • , Min Cheng
  • , Bin Nan
  • , Shunli Li*
  • *Corresponding author for this work

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

Abstract

In this work, we present a tube-based stochastic model predictive control (SMPC) method for nonlinear discrete-time systems subject to unbounded disturbances. The covariance-based probability invariant set (PIS) is formulated by an affine feedback law determined online. The nonlinear chance constraint is first approximated by linear form and then recursively tightened as the optimization algorithm converges. The solution to the original stochastic optimal control problem in tube SMPC is generated by successively solving a series of deterministic semi-definite cone programs. Besides, the recursive feasibility for tube SMPC is established with mild assumption. The efficiency of algorithm is verified by an experiment on six degree of freedom (DOF) spacecraft close proximity under external disturbances.

Original languageEnglish
Title of host publicationProceedings of the 35th Chinese Control and Decision Conference, CCDC 2023
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages2837-2843
Number of pages7
ISBN (Electronic)9798350334722
DOIs
StatePublished - 2023
Externally publishedYes
Event35th Chinese Control and Decision Conference, CCDC 2023 - Yichang, China
Duration: 20 May 202322 May 2023

Publication series

NameProceedings of the 35th Chinese Control and Decision Conference, CCDC 2023

Conference

Conference35th Chinese Control and Decision Conference, CCDC 2023
Country/TerritoryChina
CityYichang
Period20/05/2322/05/23

Keywords

  • probability invariant set
  • recursive constraint tightening
  • recursive feasibility
  • spacecraft close proximity
  • tube-based SMPC

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