A Resilience Quantitative Framework for Wide Area Damping Control Against Cyberattacks

Abolfazl Rahiminejad, Onur Duman, Mohsen Ghafouri, Ribal Atallah, Arash Mohammadi, Mourad Debbabi

Abstract: This paper proposes a novel Stability-based Re-silience Metric (SRM) to evaluate the resilience of Wide-Area-Damping-Control (WADC) systems under different loading conditions. In the proposed method, the closest eigenvalue to the right half-plane in each loading condition is considered as an indicator to measure the distance from the instability condition. Moreover, the possible cyberattacks on Wide Area Network (WAN), resulting in full or partial Denial of Service (DoS), are also taken into consideration to measure how vulnerable the system is against cyberattacks. Attack tree and Common Vulnerability Scoring System (CVSS) are utilized to calculate the probability of attacks on multiple links. Finally, controllability and observability Gramians are employed to differentiate between attacks on different communication links. The efficiency of the proposed SRM is evaluated on the Kundur 2-area system, commonly used for inter-area stability studies.