Preventive N-1 Security-Constrained Optimal Transmission Network Reconfiguration

The growing complexity of power system operation, driven by increasing load demand and renewable generation variability, challenges Transmission System Operators (TSOs) in maintaining grid security. To comply with network constraints, TSOs tend to leverage their own grid assets relying on cost-free topological reconfiguration actions. In this context, a deterministic preventive N-1 Security-Constrained Optimal Transmission Network Reconfiguration (SCOTNR) problem is proposed as a congestion management support tool for system operators, so that it can be used to derive N-1 secure operative conditions following any single line contingency. The optimization framework is solved through Mixed-Integer Linear Programming techniques for modified IEEE 14-, 39- and 118-Bus test systems.