Evaluation of Critical Infrastructures: Challenges and Viable Approaches
Architecting Dependable Systems V
The Advanced Electric Power Grid: Complexity Reduction Techniques for Reliability Modeling
SAFECOMP '08 Proceedings of the 27th international conference on Computer Safety, Reliability, and Security
Integrated cyber-physical fault injection for reliability analysis of the smart grid
SAFECOMP'10 Proceedings of the 29th international conference on Computer safety, reliability, and security
Modelling interdependencies between the electricity and information infrastructures
SAFECOMP'07 Proceedings of the 26th international conference on Computer Safety, Reliability, and Security
Model-based assessment of multi-region electric power systems showing heterogeneous characteristics
SAFECOMP'12 Proceedings of the 2012 international conference on Computer Safety, Reliability, and Security
Stochastic assessment of power systems in presence of heterogeneity
International Journal of Critical Computer-Based Systems
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Nowadays, economy, security and quality of life heavily depend on the resiliency of a number of critical infrastructures, including the Electric Power System (EPS), through which vital services are provided. In existing EPS two cooperating infrastructures are involved: the Electric Infrastructure (EI) for the electricity generation and transportation to final users, and its Information-Technology based Control System (ITCS) devoted to controlling and regulating the EI physical parameters and triggering reconfigurations in emergency situations. This paper proposes a modeling framework to capture EI and ITCS aspects, focusing on their interdependencies that contributed to the occurrence of several cascading failures in the past 40 years. A quite detailed analysis of the EI and ITCS structure and behavior is performed; in particular, the ITCS and EI behaviors are described by discrete and hybrid-state processes, respectively. To substantiate the approach, the implementation of a few basic modeling mechanisms inside an existing multiformalism/ multi-solution tool is also discussed.