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Finite-time output feedback control for a class of second-order nonlinear systems with application to DC-DC buck converters. (English) Zbl 1345.93056
Summary: The problem of output feedback control for a class of second-order nonlinear systems is investigated in this paper. Using the techniques of finite-time control and finite-time convergent observer, an observer-based finite-time output feedback controller is proposed which can guarantee that the system’s state converges to the equilibrium in a finite time. As an application of the proposed theoretical results, the problem of finite-time control without current signal for the DC-DC buck converters is solved. Simulation results are given to demonstrate the effectiveness of the proposed method.

MSC:
93B52 Feedback control
93C10 Nonlinear systems in control theory
93D15 Stabilization of systems by feedback
78A55 Technical applications of optics and electromagnetic theory
94C05 Analytic circuit theory
37M05 Simulation of dynamical systems
37N35 Dynamical systems in control
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