Research on Backstepping control of flexible joint manipulator with state constraint

  • Yong Li Yan
  • , Li Ding
  • , Teng Ren
  • , Fu Cai Liu

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

Abstract

'Large computation' is a problem of the traditional backstepping method, leading to the poor control effect of the system. To solve this problem, a backstepping controller based on active disturbance rejection control (ADRC) is designed for the nonlinear system of flexible joint manipulator with state constraints. The uncertainties of the model are approximated with the nonlinear extended state observer (ESO) to further improve the control effect of the system. The Lyapunov function is designed to restrict all states of the system. Results show that the designed controller can effectively achieve the state constraint performance and improve the position tracking accuracy of the system significantly.

Original languageEnglish
Title of host publication2023 9th International Conference on Control, Automation and Robotics, ICCAR 2023
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages30-35
Number of pages6
ISBN (Electronic)9798350322514
DOIs
StatePublished - 2023
Event9th International Conference on Control, Automation and Robotics, ICCAR 2023 - Beijing, China
Duration: 21 Apr 202323 Apr 2023

Publication series

Name2023 9th International Conference on Control, Automation and Robotics, ICCAR 2023

Conference

Conference9th International Conference on Control, Automation and Robotics, ICCAR 2023
Country/TerritoryChina
CityBeijing
Period21/04/2323/04/23

Keywords

  • Barrier Lyapunov function
  • flexible joint manipulator
  • nonlinear ESO
  • state constraint

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