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Saturated Control for Spacecraft Rendezvous and Proximity Operations under Loss of Control Effectiveness

  • Beihang University

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

Abstract

A saturated controller is developed for the final phase of rendezvous and proximity operations in the presence of disturbances, parametric uncertainties and loss of control effectiveness. To achieve this, an integrated auxiliary filter structure is first established using hyperbolic functions that work in tandem with filtered tracking error. Then a robust saturated controller for nominal system is proposed. Furthermore, saturated fault-tolerant controller based on the nominal control law and sliding-mode-like method is derived. The bound on the proposed controller can be adjusted by changing the feedback gains. A Lyapunov-based stability analysis is provided to prove uniformly ultimate bounded (UUB) tracking despite uncertainties, disturbances and even actuator faults in the six-degree-freedom dynamics. A numerical simulation is presented to demonstrate the performance of the controller.

Original languageEnglish
Title of host publicationProceedings of the 37th Chinese Control Conference, CCC 2018
EditorsXin Chen, Qianchuan Zhao
PublisherIEEE Computer Society
Pages9797-9802
Number of pages6
ISBN (Electronic)9789881563941
DOIs
StatePublished - 5 Oct 2018
Event37th Chinese Control Conference, CCC 2018 - Wuhan, China
Duration: 25 Jul 201827 Jul 2018

Publication series

NameChinese Control Conference, CCC
Volume2018-July
ISSN (Print)1934-1768
ISSN (Electronic)2161-2927

Conference

Conference37th Chinese Control Conference, CCC 2018
Country/TerritoryChina
CityWuhan
Period25/07/1827/07/18

Keywords

  • Fault-tolerant control
  • Input saturation
  • Rendezvous and proximity
  • Uniformly ultimately bounded

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