Cattura

Frequency-dependent averaged model for power converters with state jumps

Autori

Elisa Mostacciuolo, Francesco Vasca and Silvio Baccari

Abstract

Averaging techniques are widely used for the analysis and control design of switched electronic systems. Some topologies of power electronic converters, when represented by using ideal switches, are characterized by state discontinuities, also called state jumps, which may occur at the switching time instants. In this case, the classical averaged models, which are based on the modes representations with ordinary differential equations, are not effective. We propose an averaged model for switched systems whose modes are described by differential algebraic equations. The averaged model is obtained by considering a suitable “jump mode” whose dynamic matrix depends on the modes projectors. The model is validated by means of experimental set-up with switched capacitor converters.

Sessione

MA2b