A Discrete-Time Integral Sliding Mode Control Law for Systems With Matched and Unmatched Disturbances

Matteo Rubagotti, Gian Paolo Incremona, Antonella Ferrara

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)

Abstract

This letter proposes a discrete-time integral sliding mode (DT-ISM) control strategy for linear time-invariant systems subject to matched and unmatched disturbances. The DT-ISM strategy is defined based on a discrete-time model of the system obtained from its continuous-time counterpart, providing numerical procedures to determine the sets in which the disturbances are contained, starting from the corresponding sets in the continuous-time domain. The DT-ISM law is based on disturbance estimation to ideally steer the sliding variable to zero in one discrete step, and achieves a quasi-DT-ISM in the presence of bounded estimation errors. The effectiveness of the proposed control law is tested in simulation combined with a robust model predictive control law.

Original languageEnglish
Article number3394001
Pages (from-to)448-453
Number of pages6
JournalIEEE Control Systems Letters
Volume8
DOIs
Publication statusPublished - Apr 26 2024

Keywords

  • discrete-time systems
  • Integral sliding mode control
  • linear systems
  • uncertain systems

ASJC Scopus subject areas

  • Control and Systems Engineering
  • Control and Optimization

Fingerprint

Dive into the research topics of 'A Discrete-Time Integral Sliding Mode Control Law for Systems With Matched and Unmatched Disturbances'. Together they form a unique fingerprint.

Cite this