Analysis of coordination and selectivity of protection systems during reconfigurations of distribution energy systems in real time

The reconfiguration of distribution networks can be applied as a tool for planning and operation in order to obtain the most appropriate topology for system operation in steady state. As a result, there is the reduction of energy losses, improvement in voltage profile, increasing of confiability, among others. Within the criteria and assumptions adopted to perform the automatic reconfiguration with safety and effectively, it is necessary to ensure the coordination and selectivity of protective equipment involved in the reconfiguration after the switching and the consequent change of system topology. The methodology developed analyzes the coordination and selectivity of distribution networks involved for each possible solution of reconfiguration system, being the analysis of protection an important criteria to decide by the reconfiguration, besides the minimum criterias of network confiability.