Concept of synthesizing modular power supply for interfacing diverse energy sources and loads

Multiport converter (MPC) can be identified as an effective conversion structure due to their higher power density and reduced component count. In traditional multiple-stage converter system, each input source and output load are interconnected through a DC bus using independent converters to exchange power. When the number of the input sources and output loads increases, the number of converters increases, thus resulting in more complicated structure. As a prominent alternative, MPC can be introduced to simplify the multiple-stage converter system. This paper presents some simple methods for deriving MPCs based on conventional two-port converters. By decomposing the two-port converters into pulsating source cells (PSCs) and output filter cells (OFCs), MPCs can be synthesized with multiple of those cells.