PV/batteries sizing and energy dispatching using Continuous Petri Net

Abstract

Electrification of isolated area is commonly ensured by autonomous power installation including renewable energy sources. Many software tools are available to size such installations. These tools refer to the daily energy need and the site global renewable potential which leads to inaccurate and wasteful sizing. This paper presents an alternative tool based on the energy consumption and the daily loads profile to compute the size of a standalone PV/batteries system installed in an isolated chalet in Sfax, Tunisia. Obtained results are compared to those provided by PVsyst sizing tool to confirm the proposed algorithm effectiveness. Referring to obtained results, an assessment is proposed to dispatch energy between connected autonomous installations to cover the need of some houses by energy surplus offered by neighbors. A Continuous Petri Net (CPN) is used to model the energy flow between houses.