Simulation experiments: the emerging instruments for CIP

2013

IJCCBS

Power systems are among the most critical infrastructures providing services highly impacting on everyday life of modern and future society. They rely on a complex internal organisation, where interdependencies among the composing parts increase their vulnerabilities. The authors of this paper have already focused on this problem and have contributed to studies devoted to analyse the impact of interdependencies in power systems, evolving from rather simplistic scenarios to more sophisticated ones, more adherent to real system conditions. Elaborating on previous work, in this paper new investigations are performed to explore aspects of heterogeneity partially or not addressed so far, and related impact on blackouts indicators, to both prove the feasibility of the developed modelling framework and to assess the relevance of accounting for such heterogeneity.

Section: Related Workmentioning

confidence: 99%

Stochastic assessment of power systems in presence of heterogeneity

2013

IJCCBS

“…Also the European project IRRIIS [14] has devoted significant effort to interdependencies analysis and modeling, but with focus on the dependencies of the telecommunication infrastructure from the power supply. They have developed Sim-CIP [15], an integrated simulation environment used for the modeling and simulation, based on the ISE (Implementation, Services and Effects) metamodel [16]. The research activity in [17] addresses the risk of cyber attacks on the power system, by determining the probability of a successful intrusion through stochastic models, and the impact of the intrusion as unserved load by power flow simulation.…”

Section: Related Workmentioning

confidence: 99%

Analysis of Electric Power Systems Accounting for Interdependencies in Heterogeneous Scenarios

2012 Ninth European Dependable Computing Conference

2012

Efforts have been significantly invested in the last years on analysis of interdependencies in critical infrastructures, including Electric Power Systems (EPS). Among other studies, a modeling and analysis framework has been proposed, able to account for the impact of interdependencies in EPS organized as a set of interconnected regions, both from the point of view of the electric power grid and of the cyber control infrastructure. Indicators representative of the quality of service (QoS) perceived by users have been defined and assessed on reference test cases under homogeneous conditions of the network parameters and of the cost associated to power losses and to power generation. This paper advances such previous studies by extending the developed framework considering loads of different criticality (from the point of view of consequences of power loss) and different failure rates for the power lines. The proposed extensions address relevant aspects of non-homogeneity of real EPS infrastructures, which need to be taken into account in assessment studies to get accurate results, to be exploited as useful guidelines to appropriate configuration and reconfiguration policies.

“…Also the European project IRRIIS [8] has devoted significant effort to interdependencies analysis and modeling, but with focus on the dependencies of the telecommunication infrastructure from the power supply. They have developed Sim-CIP [9], an integrated simulation environment used for the modeling and simulation, based on the ISE (Implementation, Services and Effects) metamodel [10]. The research activity in [11] addresses the risk of cyber attacks on the power system, by determining the probability of a successful intrusion through stochastic models, and the impact of the intrusion as unserved load by power flow simulation.…”

Section: A Related Workmentioning

confidence: 99%

Modeling and analysis of the impact of failures in Electric Power Systems organized in interconnected regions

2011 IEEE/IFIP 41st International Conference on Dependable Systems &Amp; Networks (DSN)

2011

Analysis of interdependencies in Electric Power Systems (EPS) has been recognized as a crucial and challenging issue to improve their trustworthiness. The recent liberalization process in energy markets has promoted the entry of a variety of operators in the electricity industry. The resulting new organization contributed to increase in complexity, heterogeneity and interconnection. This paper proposes a framework for analyzing EPS organized as a set of interconnected regions, both from the point of view of the electric power grid and of the cyber control infrastructure. The emphasis is on interdependencies and in assessing their impact on indicators representative of the QoS perceived by users. Taking a reference power grid as test case, the effects of failures on selected measures are shown, both in case the grid is partitioned in a number of regions and in case of a single region, to illustrate the behavior of different grid and control configurations.