An Improved Adaptive Sliding Mode Control of a Robotic Manipulator with Hysteresis Nonlinearity Based on Adaptive Speed Factor

  • Ling Tan
  • , Guodong Li
  • , Jian Li
  • , Kexin Hu
  • , Ruiwei Dong
  • , Minshan Feng
  • , Liguo Zhu

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

1 Citation (Scopus)

Abstract

This paper presents a novel adaptive sliding mode control design for a robotic manipulator with backlash hysteresis nonlinearity and uncertainties in actuator dynamics. A radial basis function (RBF) neural network (NN) is used to approximate the dynamic robotic terms and the robust term in the proposed adaptive sliding mode controller can compensate for the hysteresis nonlinearity. Aiming at the online-tuning problem for proportional-differential (PD) controller gains, the self-coupling PD control with adaptive speed factor (ASF) is proposed, which helps the system to achieve better performance on the tracking and smoother torque outputs. And the comparison with three different controllers is presented in the paper. Theoretical analysis and simulation results have proved the effectiveness of the control scheme.

Original languageEnglish
Title of host publicationProceedings - 2021 International Conference on Machine Learning and Intelligent Systems Engineering, MLISE 2021
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages515-520
Number of pages6
ISBN (Electronic)9781665417365
DOIs
Publication statusPublished - 2021
Event2021 International Conference on Machine Learning and Intelligent Systems Engineering, MLISE 2021 - Virtual, Chongqing, China
Duration: 9 Jul 202111 Jul 2021

Publication series

NameProceedings - 2021 International Conference on Machine Learning and Intelligent Systems Engineering, MLISE 2021

Conference

Conference2021 International Conference on Machine Learning and Intelligent Systems Engineering, MLISE 2021
Country/TerritoryChina
CityVirtual, Chongqing
Period9/07/2111/07/21

Keywords

  • ASF
  • NN control
  • adaptive control
  • backlash hysteresis

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