Robust Testing of Cascading Failure Mitigations Based on Power Dispatch and Quick-Start Storage

We present a formal robust testing method for power system cascading failure mitigations. The approach is model-based, using simulated trajectories of the system and proving that uncertainties, e.g., in the initial states or disturbances, do not perturb the trajectories beyond a robust neighborhood...

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Bibliographic Details
Published in:IEEE systems journal 2018-12, Vol.12 (4), p.3063-3074
Main Authors: Xu, Zhe, Julius, A. Agung, Chow, Joe H.
Format: Article
Language:English
Subjects:
Blackout
Cascading failures
Computer simulation
Failure analysis
hybrid system
Hybrid systems
Power dispatch
Power system dynamics
Power system faults
Power system protection
Power system stability
quick-start storage
robust neighborhood
robust testing
Robustness
Safety
Schedules
Test procedures
Trajectories
Trajectory
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Summary:We present a formal robust testing method for power system cascading failure mitigations. The approach is model-based, using simulated trajectories of the system and proving that uncertainties, e.g., in the initial states or disturbances, do not perturb the trajectories beyond a robust neighborhood around them. We model power systems as hybrid systems with locations representing different swing dynamics and relay dynamics. We present implementations of our robust testing approach in a three-machine system model from the 2003 Italian Blackout and the IEEE 39-bus system model. We apply the robust testing method in two scenarios for averting the cascading failures: 1) robust testing of safety for various generator mechanical power dispatch schedules and 2) robust testing of safety for postfault remedial actions based on quick-start storage.
ISSN:1932-8184
1937-9234
DOI:10.1109/JSYST.2017.2686401