Understanding failure propagation in power systems requires sophisticated modeling that captures both cyber and physical dimensions. This work is innovative because it provides a systematic methodology for generating TCD models automatically from component specifications, eliminating manual model construction. The approach enables system designers to reason about complex failure scenarios and their cascading effects across subsystems.
This work presents a component-based modeling approach for capturing failure propagation dynamics in power systems using an extensible domain-specific language and Generic Modeling Environment. The methodology enables automatic generation of Temporal Causal Diagram (TCD) models from high-level system descriptions. The approach decomposes complex systems into plant nodes, interface nodes, and protection elements, then traces fault effects through hierarchical models.
The methodology successfully generates TCD models from power system components including transmission lines, protective relays, and circuit breakers. Testing on a three-bus system demonstrates the framework's ability to model fault propagation paths and identify failure modes. The generated models enable simulation of multiple fault scenarios and analysis of protection system response.
@inproceedings{Chhokra2015a,
author = {Chhokra}, A. and Dubey, Abhishek and {Mahadevan}, N. and {Karsai}, G.},
booktitle = {2015 Workshop on Modeling and Simulation of Cyber-Physical Energy Systems (MSCPES)},
title = {A component-based approach for modeling failure propagations in power systems},
year = {2015},
month = {apr},
pages = {1-6},
abstract = {Resiliency and reliability is of paramount impor- tance for energy cyber physical systems. Electrical protection systems including detection elements such as Distance Relays and actuation elements such as Breakers are designed to protect the system from abnormal operations and arrest failure propagation by rapidly isolating the faulty components. However, failure in the protection devices themselves can and do lead to major system events and fault cascades, often leading to blackouts. This paper augments our past work on Temporal Causal Diagrams (TCD), a modeling formalism designed to help reason about the failure progressions by (a) describing a way to generate the TCD model from the system specification, and (b) understand the system failure dynamics for TCD reasoners by configuring simulation models.},
category = {workshop},
contribution = {colab},
doi = {10.1109/MSCPES.2015.7115412},
file = {:Chhokra2015a-A_component-based_approach_for_modeling_failure_propagations_in_power_systems.pdf:PDF},
keywords = {cyber-physical systems, failure propagation, temporal causal diagrams, model generation, power systems, protection devices},
tag = {platform,power},
month_numeric = {4}
}