Araújo, Rui EstevesLeite, V.Freitas, Diamantino Silva2010-03-092010-03-0920022002Araújo, R.; Leite, V.; Freitas, D. (2002). Modelling and simulation of power electronic systems using a bond graph formalism. In 10th Mediterranean Conference on Control and Automation. Lisboa, Portugal.http://hdl.handle.net/10198/2225This paper deals with the modelling of power electronic systems using the bond graph formalism. The switching components are modelled using an ideal representation so that a constant topology system is obtained. The purpose of the present contribution is to discuss a technique that combines bond graph energy-flow modelling and signal-flow modelling schemes for simulation and prototyping of signal processing algorithms in power electronics systems. In this paper, we will discuss models of the use of fully-controlled, semi-controlled and non-controlled switches in the field of power static converters. By concept, a simulation environment can be examined at different abstraction or hierarchy levels. The approach in this paper is, accordingly, the formulation of a simulation task at different levels: component level, topology level, functional description and implementation description. The paper concludes with two practical examples of simulation of power electronics systems.engComputer modelling and simulationPower electronicsBond graphSimulink®conference object2010-02-06