0575057 20250310145934.120230831235959.9 85165315303 001040630000001 10.1109/TCSI.2023.3291700 13 s. P cav_un_epca*03116101549-8328709 (2023)3746-3758 Fixed-time tracking control Nonlinear purefeedback system State constraint Nonlinear transformation function Adding a power integrator technique. cav_un_auth*0452080 Guo Ch. CN cav_un_auth*0392198 Hu J. CN K cav_un_auth*0250587 Wu Y. CN cav_un_auth*0101074 Čelikovský Sergej UTIA-B Teorie řízení Department of Control Theory TŘ TR Department of Control Theory Ústav teorie informace a automatizace AV ČR, v. v. i. článek v odborném periodiku 1,35 MB http://library.utia.cas.cz/separaty/2023/TR/celikovsky-0575057.pdf https://ieeexplore.ieee.org/document/10189394 GA21-03689S GA ČR CZ cav_un_auth*0410139 In this paper, a fixed-time tracking control problem is investigated for an uncertain high-order nonlinear purefeedback systems with practical state constraints. To this end, a new nonlinear transformation function with lower change rate at the state constraint boundary is first proposed, which can not only handle both constrained and unconstrained states in a unified way, but also reduce the control magnitude at the constraint boundary. With the help of the proposed transformation function, the original system is transformed to a new system without state constraints. Then, a non-singular fixed-time adaptive tracking controller is designed by applying an adding a power integrator technique and an adaptive neural network method. It is shown that the practical fixed-time stability can be guaranteed for the closed-loop system under the proposed tracking controller. Finally, two numerical examples are presented to demonstrate the proposed fixed-time tracking control strategy. WOS BC 20000 20200 20205 2024 4 4 A sml 4as 2rh 20231122151511.8 2 R hod 20250310143515.6 20250310145934.1 RVO:67985556 https://hdl.handle.net/11104/0344902 S Copyright 20230630 1* Article Engineering Electrical Electronic C ENGINEERING.ELECTRICAL&ELECTRONIC 4.5 0.7 5.2 0.02306 1.262 18767 188 1.836 36.3 6.13 8086 Q1 4.500 488 Q1 82.9 Q2 Q1 1.17 Q1 82.9 2023 Soubory v repozitáři: celikovsky-0575057.pdf, celikovsky-0575057-CopyrightReceipt (3).pdf 85165315303 SCOPUS PUBMED 001040630000001 WOS článek v odborném periodiku 1,35 MB cav_un_epca*0311610 IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS I-REGULAR PAPERS 1549-8328 1558-0806 Roč. 70 č. 9 2023 3746 3758