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Non-singular Terminal Sliding Mode Tracking Control with Synchronization in the Cable Space for Cable-Driven Parallel Robots

  • School of Astronautics, Harbin Institute of Technology

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

Abstract

There exist two problems: 1) the model uncertainties caused by flexible cable and 2) the oscillations caused by the asynchronous adjustment of multiple cable lengths, which make it difficult to achieve accurate tracking control of the end-effector (EE) for cable-driven parallel robots (CDPRs) in practical applications. This paper addresses a non-singular terminal sliding mode control scheme with the relative-coupling synchronization in the cable space (NTSM-RSC) to overcome the effect of the model uncertainties and suppress the oscillations of cables simultaneously. A non-singular terminal sliding mode controller (NTSMC) is proposed to enhance the robustness of the system to model uncertainties. A relative-coupling error vector of multiple cable lengths is established based on ring topology, and a relative-coupling synchronization controller in the cable space (RSC) is proposed to improve the synchronization of multiple cable lengths. The RSC is added to the NTSMC to improve the synchronization of cables compared with the NTSMC, namely the NTSM-RSC. The finite-time convergence of the error of system is theoretically guaranteed. The effectiveness and superiority of the NTSM-RSC are verified by experiments.

Original languageEnglish
Title of host publication2023 IEEE 21st International Conference on Industrial Informatics, INDIN 2023
EditorsHelene Dorksen, Stefano Scanzio, Jurgen Jasperneite, Lukasz Wisniewski, Kim Fung Man, Thilo Sauter, Lucia Seno, Henning Trsek, Valeriy Vyatkin
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781665493130
DOIs
StatePublished - 2023
Externally publishedYes
Event21st IEEE International Conference on Industrial Informatics, INDIN 2023 - Lemgo, Germany
Duration: 17 Jul 202320 Jul 2023

Publication series

NameIEEE International Conference on Industrial Informatics (INDIN)
Volume2023-July
ISSN (Print)1935-4576

Conference

Conference21st IEEE International Conference on Industrial Informatics, INDIN 2023
Country/TerritoryGermany
CityLemgo
Period17/07/2320/07/23

Keywords

  • Cable-driven parallel robots
  • non-singular terminal sliding mode
  • synchronization control
  • trajectory tracking

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