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 language | English |
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Article number | 3394001 |
Pages (from-to) | 448-453 |
Number of pages | 6 |
Journal | IEEE Control Systems Letters |
Volume | 8 |
DOIs | |
Publication status | Published - 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