Publicação: On Switched Regulator Design of Uncertain Nonlinear Systems Using Takagi-Sugeno Fuzzy Models
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Data
2014-12-01
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Coorientador
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Ieee-inst Electrical Electronics Engineers Inc
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Resumo
This paper is concerned with the design of state-feedback switched controllers for a class of uncertain nonlinear plants described by Takagi-Sugeno (T-S) fuzzy models. The proposed methodology eliminates the need to find the membership function expressions to implement the control law, which is relevant in cases where the membership function depends on uncertain parameters. The design of the switched controllers is based on a minimum-type Lyapunov function and the minimization of the time derivative of this Lyapunov function. The conditions of the new stability criterion are represented by a kind of bilinear matrix inequalities (BMIs) that has been solved by the path-following method. A numerical example and the nonlinear control design of a magnetic levitator with uncertainties illustrate the procedure.
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Ieee Transactions On Fuzzy Systems. Piscataway: Ieee-inst Electrical Electronics Engineers Inc, v. 22, n. 6, p. 1720-1727, 2014.
