  Fast and reliable transmission network reconfiguration is critical in
improving power grid resilience to cyber-attacks. If the network
reconfiguration following cyber-attacks is imperfect, secondary incidents may
delay or interrupt post-attack restoration of the power grid. This paper
proposes a framework of resilient transmission network reconfiguration, taking
into account the impacts of cyber-attacks in the network reconfiguration
process. First, the mechanism of cyber-attack propagation is analyzed based on
the characteristics of network reconfiguration. Second, systematic resilience
indices are specially extracted in which the impact of cyber-attacks on network
reconfiguration is quantified. These indices are defined in terms of the
restoration characteristics of the transmission power system. Third,
representative cyber-attack incidents motivate an optimization-based model of
resilient transmission network reconfiguration, and an optimal reconstruction
scheme is obtained. Finally, simulation results based on the IEEE 39-bus system
verify the feasibility and effectiveness of the proposed framework in enhancing
power grid resilience to cyber-attacks.
