A Steiner Arborescence Model for the Feeder Reconfiguration in Electric Distribution Networks

In this paper we address the problem of finding the radial configuration of an electricdistributionnetwork that minimizes the total losses due to the Joule effect. We propose an interpretation of the feederreconfiguration problem as aSteinerarborescence problem, formulated through amodel with a separable quadratic objective function. The problem is then solved by a mixed-integer quadratic programming solver. Computational experience on test networks is reported, showing the effectiveness of the formulation.