Inference of the operative configuration of medium voltage distribution networks

This paper presents the first part of an approach aimed to infer the operative configuration of medium voltage distribution networks. Here the operative configuration is defined as the state (open or closed) of the protective devices installed in the MV feeders. The methodology is based on the calculation of fault currents using fuzzy arithmetic and the estimation of loads using power flow analysis. Preliminary results are obtained using limited data supplied by SCADA and statistical data processed from CIS. An analysis of the relations between operative configuration, distribution state estimation and quality of service is also presented. The research is oriented toward radial distribution feeders with solid connection to ground and a low degree of real time monitoring and control.