Natural and prospective parameters modeling architecture of electric power systems

Modeling the electric system "architecture" consists in arranging the basis general scheme as a solution of the correlations system determined by assembling all the prospective components, sources and protection devices. The basis scheme will start and assist the iterative system designing process. The aim of the system modeling "architecture" is to achieve the objectives, in order to safety, maintenance, operation and reliability, without utilizing special components and complex design. Within an IEC modeling approach, the paper points out considerations assistant for structuring the architecture of the electric power system versus the status variation. The criterion suggested is to take care and/or to control the variation range around the natural values of real parameters, defined for each node of the electric power system assumed in the default status (normal supply and basic configuration). The goal of the "natural" modeling is to create for the system an "architecture" adapted, in components and arrangements, to guarantee a controlled range of its parameters for all the prospected configurations of installation, expansion and restoration