On the Definition of Cyber-­‐Physical Resilience in Power Systems

Modern society relies heavily upon complex and widespread electric grids. In recent years, advanced sensors, intelligent automation, communication networks, and information technologies (IT) have been integrated into the electric grid to enhance its performance and efficiency. Integrating these new technologies has resulted in more interconnections and interdependencies between the physical and cyber components of the grid. Natural disasters and man-made perturbations have begun to threaten grid integrity more often. Urban infrastructure networks are highly reliant on the electric grid and consequently, the vulnerability of infrastructure networks to electric grid outages is becoming a major global concern. In order to minimize the economic, social, and political impacts of power system disruptions, this paper aims to define the concept of cyber-physical resilience within power systems. We propose a comprehensive framework for understanding the interactions and dependencies between cyber and physical systems and highlight the critical vulnerabilities facing modern electric grids. The findings underscore the need for strategies that bolster resilience against various types of vulnerabilities, ultimately contributing to sustainable and reliable power system operations.