Adaptive Non-singular Terminal Sliding Mode Control for an Unmanned Underwater Vehicle: Real-time Experiments

Miguel Angel Garcia Rangel, Adrian Manzanilla, Angel Eduardo Zamora Suarez, Filiberto Muñoz, Sergio Salazar, Rogelio Lozano

Research output: Contribution to journalArticlepeer-review

41 Scopus citations

Abstract

This research work focuses on the design of a robust-adaptive control algorithm for a 4DOF Unmanned Underwater Vehicle (UUV). The proposed strategy is based in a Non-Singular Terminal Sliding Mode Control (NTSMC) with adaptive gains, where the proposed adaptation mechanism ensures that the gains remain bounded. In this control strategy a non-singular terminal sliding surface is proposed to obtain a faster convergence of the tracking errors. The NTSMC ensures Practical Finite-Time Stability for the closed-loop system as well as exhibits a chattering reduction. In order to demonstrate the satisfactory performance of the proposed controller, a set of experiments was performed with a Non-Singular Terminal Sliding Mode Controller and an Adaptive Non-Singular Terminal Sliding Mode Control (ANTSMC) in real time for trajectory tracking in the X-Y plane, the graphs showed that the ANTSMC converges faster to a smaller region and reduces oscillations.

Original languageEnglish
Pages (from-to)615-628
Number of pages14
JournalInternational Journal of Control, Automation and Systems
Volume18
Issue number3
DOIs
StatePublished - 1 Mar 2020
Externally publishedYes

Keywords

  • Non-singular terminal sliding mode controller
  • real-time experiments
  • unmanned underwater vehicle

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