Cascade Delayed Controller Design for a Class of Underactuated Systems
| Autor: | Gilberto Ochoa-Ortega, Mario Ramírez-Neria, Norma B. Lozada-Castillo, Raúl Villafuerte-Segura, Alberto Luviano-Juárez |
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| Rok vydání: | 2020 |
| Předmět: |
0209 industrial biotechnology
Multidisciplinary Article Subject General Computer Science Computer science Stability criterion Underactuation 020208 electrical & electronic engineering Characteristic equation Tangent QA75.5-76.95 02 engineering and technology Computer Science::Digital Libraries Controllability Nonlinear system 020901 industrial engineering & automation Cascade Linearization Control theory Electronic computers. Computer science Computer Science::Mathematical Software 0202 electrical engineering electronic engineering information engineering |
| Zdroj: | Complexity, Vol 2020 (2020) |
| ISSN: | 1099-0526 1076-2787 |
| DOI: | 10.1155/2020/2160743 |
| Popis: | In this paper, a delayed control strategy for a class of nonlinear underactuated fourth-order systems is developed. The proposal is based on the implementation of the tangent linearization technique, differential flatness, and a study of the σ-stabilization of the characteristic equation of the closed-loop system. The tangent linearization technique allows obtaining a local controllability property for the analyzed class of systems. Also, it can reduce the complexity of the global control design, through the use of a cascade connection of two second-order controllers instead of designing a global controller of the fourth-order system. The stabilizing behavior of the delayed controller design is supported by the σ-stability criterion, which provides the controller parameter selection to reach the maximum exponential decay rate on the system response. To illustrate the efficiency of the theoretical results, the proposal is experimentally assessed in two cases of study: a flexible joint system and a pendubot. |
| Databáze: | OpenAIRE |
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