Defining the possible variants of a sectioned network by using a modified Newton-Raphson algorithm

Congestions and undesirable power flows are an increasingly common occurrence in transmission networks. One possible measure to eliminate the congestion in network would be changing the network´s topology since the stated changes the impedance of the network, which results in a change of power flow. Since the change in network topology has various implications, it can also be used as a powerful tool in optimization techniques resulting in reduction of power system losses, as well as in the already mentioned congestion management. This study deals with a new approach to the problem of changes in network topology based on application of a three-dimensional matrix of admittance, and with automating the process of power flow calculations for all possible variants of the network.