A Methodology for Obtaining the References of Voltages and Currents in Power Electronics Devices

Abstract

This paper presents a methodology for obtaining the references for voltages and currents of power electronics (PE) devices. References are needed for deducing, in an appropriate way, the differential equations (DEs) that govern the behavior of PE devices. If references are used for deducing DEs, power and energy interchange can be explained; also, control strategies based on mathematical model can be easily implemented. PE devices are very diverse; so, the proposed methodology is explained by using a complex converter for considering many possibilities that may result. Basically, the passive law of sign is used; nonetheless, the application of this law is sometimes tricky. Finally, OpenModelica software is used for validating the proposed methodology.