Modeling Current-Mode-Controlled Power Stages for Simulating Multiple-Module Inter-Connected Power Supply Systems

This paper continues the efforts on behaviorally modeling multiple-module inter-connected power supply systems and presents detailed derivations of the lower-frequency power transfer models for non-isolated Ćuk, SEPIC and Zeta power stages, which will make up a complete family of basic converter models together with those in the previously published paper. The models play an important role in the simulation scheme proposed to predict and investigate large-signal subsystem interactions in a distributed power system.