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- Title
An Improved Non-cascade Adaptive Integral Sliding Mode Control for PMSM Servo Systems.
- Authors
Che, Zhiyuan; Yu, Haitao; Mobayen, Saleh; Ali, Murad
- Abstract
This paper addresses the problems of the non-cascade adaptive integral sliding mode control (ISMC) for permanent magnet synchronous motors (PMSMs). Firstly, by taking the external disturbances and internal parametric uncertainties into full consideration, a surface-mounted PMSM is modeled as a singularly perturbed system by singular perturbation theory. Then, the discrete-time nonlinear tracking differentiator and the disturbance observer (DO) are presented, arranging a favorable transition dynamic and estimating the lumped disturbances, respectively. As a result, a novel integral sliding mode surface function and the constructed DO-based adaptive ISMC law are subsequently designed, thus guaranteeing the reachability condition and closed-loop system stability. Furthermore, the H ∞ control approach is employed to design the non-cascade controller gain, by solving a set of linear matrix inequalities. Finally, the advantages and effectiveness of the proposed methods are demonstrated by the comparison results.
- Subjects
SLIDING mode control; LINEAR matrix inequalities; PERMANENT magnet motors; SINGULAR perturbations; PERTURBATION theory
- Publication
Circuits, Systems & Signal Processing, 2024, Vol 43, Issue 3, p1429
- ISSN
0278-081X
- Publication type
Article
- DOI
10.1007/s00034-023-02555-4