Optimal reconfiguration of radial distribution networks for reducing voltage sags

This paper addresses the problem of optimal reconfiguration of distribution networks to tackle the problem of voltage sags. The networks have a radial topology and our procedure finds a reconfiguration where the expected occurrence of voltage sags is reduced. The paper describes the developed methodology, which is based on genetic algorithms; furthermore, the electric distribution system is represented as a graph, and the population is generated by providing the mesh information of the system. Case studies are presented for two IEEE test networks, demonstrating the effectiveness of the implemented methodology.