2011
IMAACA 2011 Proceeding
A new Bond-Graph Model of Photovoltaic Cells
Authors: Stephan Astier, Guillaume Fontes, Xavier Roboam, Christophe Turpin, Frédéric Gailly, Laurianne Menard
Abstract
This paper presents the building of a Bond Graph model of photovoltaic cells based on PN junction by modeling directly the various phenomena involved in the photovoltaic conversion from incident sunlight to final electricity. The basics of photovoltaic conversion and the classical equivalent circuit modeling are presented. Then a new original Bond Graph model of a photovoltaic cell is elaborated. It is built with regards to the physical energy structure of the light and to the energy structure of the PN junction used for the conversion device i.e. the photovoltaic cell. A particular attention is paid to causality problem, as the light appears as a power source of energy which implies very particular constraints explained and leads to a model using bi-causality. Finally, it is shown how this model can be reduced to the classical equivalent circuit model.
I3M Scientific Sponsors
I3M Industrial Sponsors
I3M Media Sponsors
