Algebraic Analysis of the Stability of Interconnected Converter Systems

K. Zenger, A. Altowati, and T. Suntio (Finland)

Keywords

Switching power supply, DC/DC converter, smallsignal model, stability, internal stability, structural property.

Abstract

Small signal models of electric converter systems are in vestigated in the paper and their dynamical properties and interconnections are studied. A system theoretical ap proach is used to represent the models in a normal form, which makes analysis of such systems and their connec tions straightforward. Systematic methods to study both internal and input-output stability are presented, and impli cations to controller design principles are outlined.

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