| Title:
|
Fixed-time safe tracking control of uncertain high-order nonlinear pure-feedback systems via unified transformation functions (English) |
| Author:
|
Guo, Chaoqun |
| Author:
|
Hu, Jiangping |
| Author:
|
Hao, Jiasheng |
| Author:
|
Čelikovský, Sergej |
| Author:
|
Hu, Xiaoming |
| Language:
|
English |
| Journal:
|
Kybernetika |
| ISSN:
|
0023-5954 (print) |
| ISSN:
|
1805-949X (online) |
| Volume:
|
59 |
| Issue:
|
3 |
| Year:
|
2023 |
| Pages:
|
342-364 |
| Summary lang:
|
English |
| . |
| Category:
|
math |
| . |
| Summary:
|
In this paper, a fixed-time safe control problem is investigated for an uncertain high-order nonlinear pure-feedback system with state constraints. A new nonlinear transformation function is firstly proposed to handle both the constrained and unconstrained cases in a unified way. Further, a radial basis function neural network is constructed to approximate the unknown dynamics in the system and a fixed-time dynamic surface control (FDSC) technique is developed to facilitate the fixed-time control design for the uncertain high-order pure-feedback system. Combined with the proposed unified transformation function and the FDSC technique, an adaptive fixed-time control strategy is proposed to guarantee the fixed-time tracking. The novel original results of the paper allow to design the independent unified flexible fixed-time control strategy taking into account the actual possible constraints, either present or missing. Numerical examples are presented to demonstrate the proposed fixed-time tracking control strategy. (English) |
| Keyword:
|
fixed-time safe control |
| Keyword:
|
nonlinear pure-feedback systems |
| Keyword:
|
state constrains |
| Keyword:
|
dynamic surface control |
| Keyword:
|
unified transformation function |
| MSC:
|
70K20 |
| MSC:
|
93D15 |
| DOI:
|
10.14736/kyb-2023-3-0342 |
| . |
| Date available:
|
2023-07-12T07:15:33Z |
| Last updated:
|
2023-07-12 |
| Stable URL:
|
http://hdl.handle.net/10338.dmlcz/151720 |
| . |
| Reference:
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| . |
