A routing optimization model for EMS of power systems considering cyber-physical interdependence

The development of smart grids makes the dependence of power systems on information systems increasing. However, the optimal routing of power communication networks does not mean the routing for power systems is optimal. Besides, power communication networks are different from ordinary, public communication networks, as the secondary system of power systems, the primary purpose is to ensure the reliability of power systems. Based on the cyber-physical sensitivity analysis, the importance of information flow can be evaluated. Then, a dynamic CPS optimal routing model distinguishing the importance of information flow is proposed to configure more reliable and shorter path to higher importance information flow. Case study on different scenarios of a modified IEEE 14-bus system demonstrates the validity of the proposed routing optimization model.