Analysis of major failures in Europe’s power grid

Rosas-Casals, Martí; Solé, Ricard V.

doi:10.1016/j.ijepes.2010.11.014

Cited by 53 publications

(40 citation statements)

References 15 publications

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“…The obtained statistical results in Fig. 2 and Table 1 are consistent with the presented results in [26] whereas our results profit the longer time series of blackouts data until July 2012. It is worth to mention that these statistical properties are obtained for a power grid whose topology continuously evolves over the time.…”

Section: -Analysis Of Blackouts Datasupporting

confidence: 92%

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Assessment of HVDC grid segmentation for reducing the risk of cascading outages and blackouts

Alizadeh‐Mousavi

Bizumić

Cherkaoui

2013

2013 IREP Symposium Bulk Power System Dynamics and Control - IX Optimization, Security and Control of the Emerging Power Grid

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This paper deals with a DC-segmentation of interconnected power systems which represents a relatively new and interesting approach that could be a potential solution for mitigation of the cascading outages effects. The DC-segmentation is defined as the use of DC links to split large AC grids into sets of smaller asynchronously operated AC segments. By implementing grid segmentation, it should be plausible to improve the controllability of power flows, to limit the propagation of disturbances, to reduce the risk of cascading outages and blackouts and to decrease the complexity of power systems. The statistical analysis of time series of blackouts size measures demonstrates the power law region in distributions of different quantities. This heavy tail behavior implies that the blackouts of different scales may take place and the extreme events cannot be overlooked. In order to take into account the risk of large blackouts, a new risk assessment method is developed and implemented. This method is based on Monte Carlo Simulation and takes into account the cascading outages of transmission system due to the overloading and the hidden failure of protection systems and the response of generators/loads/HVDC controllers to the power imbalance or the frequency deviation. The effectiveness of the DC-segmentation for reducing the risk of large blackouts is assessed using the proposed risk assessment method applied to a simplified model of the potential future intercontinental power grid of Europe and Russia. The distributions and expected values of the blackout size quantities (including Load Not Served (LNS), Number of Transmission component Outage (NTO) and Energy Not Served (ENS)) are evaluated before and after the DCsegmentation.

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Section: -Analysis Of Blackouts Datasupporting

confidence: 92%

“…A similar approach is applied in [26] to the ENTSO-E major event data from 2002 to 2008. The obtained statistical results in Fig.…”

Section: -Analysis Of Blackouts Datamentioning

confidence: 99%

Assessment of HVDC grid segmentation for reducing the risk of cascading outages and blackouts

Alizadeh‐Mousavi

Bizumić

Cherkaoui

2013

2013 IREP Symposium Bulk Power System Dynamics and Control - IX Optimization, Security and Control of the Emerging Power Grid

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“…Two key issues should be taken into consideration in the optimization of power grids once stability is achieved: performance (associated with vulnerability and measured in terms of connectivity) and cost. Furthermore, in order to assess the performance of a power system from an engineering point of view, empirical reliability data (i.e., total loss of power, energy not supplied or restoration time) must be considered [16].…”

Section: Introductionmentioning

confidence: 99%

Spatial and Performance Optimality in Power Distribution Networks

Luo

Pagani

Rosas-Casals

2018

IEEE Systems Journal

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Abstract-Complex network theory has been widely used in vulnerability analysis of power networks, especially for power transmission ones. With the development of the smart grid concept, power distribution networks are becoming increasingly relevant. In this paper, we model power distribution systems as spatial networks. Topological and spatial properties of 14 European power distribution networks are analyzed, together with the relationship between geographical constraints and performance optimization, taking into account economic and vulnerability issues. Supported by empirical reliability data, our results suggest that power distribution networks are influenced by spatial constraints which clearly affect their overall performance.

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“…This is the reason why the study of cascading failures in power grids (both in power transmission grids [2,8], distributed generation [9] and smart grids [10]) is currently a vibrant topic which is being profusely investigated [2][3][4][8][9][10][11][12][13][14][15]. Some historic blackouts-such as the recently one occurred in India on end July 2012 [15], those in the north-east area of US and Canada (August 14, 2003) [16][17][18], the one affecting a large portion of Italy (September 28,2003) and other countries in the European Union [19,20]-have been widely studied using both Complex Networks (CN) and Electrical Engineering (EE) tools [2,7,8,[12][13][14][21][22][23][24][25][26][27][28][29][30][31][32][33][34][35][36]…”

Section: Introductionmentioning

confidence: 99%

A Critical Review of Robustness in Power Grids Using Complex Networks Concepts

et al. 2015

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This paper reviews the most relevant works that have investigated robustness in power grids using Complex Networks (CN) concepts. In this broad field there are two different approaches. The first one is based solely on topological concepts, and uses metrics such as mean path length, clustering coefficient, efficiency and betweenness centrality, among many others. The second, hybrid approach consists of introducing (into the CN framework) some concepts from Electrical Engineering (EE) in the effort of enhancing the topological approach, and uses novel, more efficient electrical metrics such as electrical betweenness, net-ability, and others. There is however a controversy about whether these approaches are able to provide insights into all aspects of real power grids. The CN community argues that the topological approach does not aim to focus on the detailed operation, but to discover the unexpected emergence of collective behavior, while part of the EE community asserts that this leads to an excessive simplification. Beyond this open debate it seems to be no predominant structure (scale-free, small-world) in high-voltage transmission power grids, the vast majority of power grids studied so far. Most of them have in common that they are vulnerable to targeted attacks on the most connected nodes and robust to random failure. In this respect there are only a few works that propose strategies to improve robustness such as intentional islanding, restricted link addition, microgrids and Energies 2015, 8 9212 smart grids, for which novel studies suggest that small-world networks seem to be the best topology.

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Analysis of major failures in Europe’s power grid

Cited by 53 publications

References 15 publications

Assessment of HVDC grid segmentation for reducing the risk of cascading outages and blackouts

Assessment of HVDC grid segmentation for reducing the risk of cascading outages and blackouts

Spatial and Performance Optimality in Power Distribution Networks

A Critical Review of Robustness in Power Grids Using Complex Networks Concepts

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