Design and tuning of a fuzzy proportional retarded controller: frequency approach
| Autor: | R. Villafuerte, J.A. Ortega Melo |
|---|---|
| Jazyk: | Spanish; Castilian |
| Rok vydání: | 2015 |
| Předmět: | |
| Zdroj: | Revista Iberoamericana de Automática e Informática Industrial RIAI, Vol 12, Iss 4, Pp 467-475 (2015) |
| Druh dokumentu: | article |
| ISSN: | 1697-7912 1697-7920 |
| DOI: | 10.1016/j.riai.2015.07.005 |
| Popis: | The time delays are usually an undesirable phenomenon in the control processes, because these can induce instability or a poor performance in the system. However, the time delays have the property of assisting in stabilizing. This article benefiting from this property to propose the design and tuning of a fuzzy proportional retarded controller (BPR) to stabilize a class of nonlinear systems. In this frame, the stabilization of a nonlinear system is guaranteed through the σ-stability of its Takagi-Sugeno (TS) fuzzy model in close-loop with BPR controller. The BPR controller design is based on inclusion a retarded action in the conventional structure. While the tuning of the BPR control law, has been addressed in the frequency approach using D-partition method. The stability of TS-BPR fuzzy system is ensured by analazing the root locus of its characteristic quasipolynomial. The design and tuning of BPR controller are exemplified on a car-pendulum experimental platform. The performance of BPR is compared with a parallel distributed compensation classic. |
| Databáze: | Directory of Open Access Journals |
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