A reconfiguration algorithm for a DC Zonal Electric Distribution System based on graph theory methods

Abstract

Modern DC power electric distribution system requires high stability under failure conditions. In general, the requirements of installed loads are nearly close to the maximum capacity supplied by a generator, and when a fault occurs produces an immediate change in the system topology. Therefore, DC power electric distribution system requires fast reconfiguration. This article presents an algorithm for network reconfiguration on a DC zonal electric distribution system (DC ZEDS), which solves the optimization problem maximum flow for power balance and takes loads priority into consideration under safe operating conditions and at the same time to minimize the switching operations. The main used tool is graph-theory, where the reconfiguration problem is solved developing graph-based numerical operations.