Nonlinear interconnected high gain observer for series-parallel resonant DC/DC converter Online publication date: Tue, 31-Dec-2019
by Ouadia Elmaguiri; Abdelmajid Farchi; Abdellah Boulal; Aziz Akhiate
International Journal of Modelling, Identification and Control (IJMIC), Vol. 33, No. 2, 2019
Abstract: We are considering the problem of state observation in series-parallel resonant converters (LCC). This is a crucial issue in (LCC) output voltage control as the control model is nonlinear and involves non-physical state variables, namely real and imaginary parts of complex electrical variables. An interconnected high gain observer is designed to get online estimates of these states. The observer is shown to be globally asymptotically stable. The global stability of the observer is analytically treated using the Lyapunov theory; finally we present numerical simulation to illustrate the performance of the suggested approach.
Online publication date: Tue, 31-Dec-2019
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