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Samaei M.♦, Ahmadi S.♦, Soorki M.♦, Amini S., Comment on S. Ahmed, H. Wang, and Y. Tian, “Robust adaptive fractional-order terminal sliding mode control for lower-limb exoskeleton,” Asian J. Control, vol. 21, no. 1, pp. 1–10 (2019),
asian journal of control, ISSN: 1934-6093, DOI: 10.1002/asjc.2912, No.2912, pp.1-4, 2022 Abstract:
In this comment, it is shown that there are some non-negligible big mistakes in the analyses and stability proof of the proposed controller in the quoted paper, which makes the main results of this paper to be incorrect. The main unavoidable mistakes in the stability analysis of the main theorem (Theorem 1) are stated and some remarks are also mentioned to fix some of them. Keywords:
finite-time convergence, fractional-order controllers, lower-limb exoskeleton, robustadaptive control, terminal sliding mode control Affiliations:
| Samaei M. | - | other affiliation | | Ahmadi S. | - | other affiliation | | Soorki M. | - | other affiliation | | Amini S. | - | IPPT PAN |
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