Wide-Area Damping Control Resilience towards Cyber-Attacks

Wide-Area Damping Control Resilience towards Cyber-Attacks: A Dynamic Loop Approach

Patel, Abhilash (Indian Institute of Technology Delhi)
Roy, Spandan (International Institute of Information Technology)
Baldi, S. (TU Delft Team Bart De Schutter; Southeast University)

2021

By increasingly relying on network-based operation for control, monitoring, and protection functionalities, modern wide-area power systems have also become vulnerable to cyber-attacks aiming to damage system performance and/or stability. Resilience in state-of-the-art methods mostly relies on known characteristics of the attacks and static control loops (i.e., with fixed input/output channels). This work proposes a 'dynamic loop' wide-area damping strategy, where input/output channel pairs are changed dynamically. We study 'reactive' dynamic switching in case of detectable attack and 'pro-active' dynamical switching, in case of undetectable (stealth) attacks. Stability of the dynamic loop is presented via Lyapunov theory, under parametric perturbations, average dwell time switching and external perturbations. Using two-and five-area IEEE benchmarks, it is shown that the proposed strategy provides effective damping and robustness under various detectable (e.g., false data injection, denial-of-service) and stealth (replay, bias injection) attacks.

Benchmark testing
Cyber-attack
Damping
Dynamic Loop
Power system dynamics
Power system stability
Resilience
Stability criteria
Switched Controller
Switches
Wide-Area Damping Control.

http://resolver.tudelft.nl/uuid:3053c931-465a-46c2-bc60-a388246c99cc

https://doi.org/10.1109/TSG.2021.3055222

1949-3053

IEEE Transactions on Smart Grid, 12 (4), 3438-3447

Accepted Author Manuscript

Institutional Repository

journal article

© 2021 Abhilash Patel, Spandan Roy, S. Baldi