Comparison of approaches to identify topology errors in the scope of state estimation studies

In this paper, the authors describe two approaches developed by two research teams to address the topology identification problem in the scope of power system state estimation. Both approaches aim at enlarging the traditional concept of strict state estimation, assuming that the network topology is pre-determined and is fixed. In fact, the authors are generalizing state estimation, enlarging its domain and aiming at obtaining topology information from a state estimation run. Apart from the description of those two techniques, the paper includes a set of tests performed over the same test system in order to illustrate the interest of the approaches and to evaluate their performances