TY - GEN
T1 - A Cyber Threat Mitigation Approach for Wide Area Control of SVCs using Stability Monitoring
AU - Chattopadhyay, Abhiroop
AU - Valdes, Alfonso
AU - Sauer, Peter W.
AU - Nuqui, Reynaldo
N1 - Funding Information:
This material is based upon work supported by the Department of Energy under Award Number DE-OE0000897. This report was prepared as an account of work sponsored by an agency of the United States Government. Neither the United States Government nor any agency thereof, nor any of their employees, makes any warranty, express or implied, or assumes any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed, or represents that its use would not infringe privately owned rights. Reference herein to any specific commercial product, process, or service by trade name, trademark, manufacturer, or otherwise does not necessarily constitute or imply its endorsement, recommendation, or favoring by the United States Government or any agency thereof. The views and opinions of authors expressed herein do not necessarily state or reflect those of the United States Government or any agency thereof.
Funding Information:
The authors would also like to acknowledge support received from the University of Illinois at Urbana-Champaign, ABB, and Hitachi ABB Power Grids. A. Valdes is with the University of Illinois Information Trust Institute (ITI).
Publisher Copyright:
© 2021 IEEE.
PY - 2021/6/28
Y1 - 2021/6/28
N2 - We propose a stability monitoring approach for the mitigation of cyber threats directed at the wide area control (WAC) system used for coordinated control of Flexible AC Transmission Systems (FACTS) used for power oscillation damping (POD) of active power flow on inter-area tie lines. The approach involves monitoring the modes of the active power oscillation on an inter-area tie line using the Matrix Pencil (MP) method. We use the stability characteristics of the observed modes as a proxy for the presence of destabilizing cyber threats. We monitor the system modes to determine whether any destabilizing modes appear after the WAC system engages to control the POD. If the WAC signal exacerbates the POD performance, the FACTS falls back to POD using local measurements. The proposed approach does not require an expansive system-wide view of the network. We simulate replay, control integrity, and timing attacks for a test system and present results that demonstrate the performance of the SM approach for mitigation.
AB - We propose a stability monitoring approach for the mitigation of cyber threats directed at the wide area control (WAC) system used for coordinated control of Flexible AC Transmission Systems (FACTS) used for power oscillation damping (POD) of active power flow on inter-area tie lines. The approach involves monitoring the modes of the active power oscillation on an inter-area tie line using the Matrix Pencil (MP) method. We use the stability characteristics of the observed modes as a proxy for the presence of destabilizing cyber threats. We monitor the system modes to determine whether any destabilizing modes appear after the WAC system engages to control the POD. If the WAC signal exacerbates the POD performance, the FACTS falls back to POD using local measurements. The proposed approach does not require an expansive system-wide view of the network. We simulate replay, control integrity, and timing attacks for a test system and present results that demonstrate the performance of the SM approach for mitigation.
KW - cyber threat mitigation
KW - Flexible AC Transmission Systems (FACTS)
KW - inter-area oscillations
KW - modal analysis
KW - wide area control systems
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U2 - 10.1109/PowerTech46648.2021.9494955
DO - 10.1109/PowerTech46648.2021.9494955
M3 - Conference contribution
AN - SCOPUS:85112356056
T3 - 2021 IEEE Madrid PowerTech, PowerTech 2021 - Conference Proceedings
BT - 2021 IEEE Madrid PowerTech, PowerTech 2021 - Conference Proceedings
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2021 IEEE Madrid PowerTech, PowerTech 2021
Y2 - 28 June 2021 through 2 July 2021
ER -