Structural vulnerability of power systems: A topological approach

Bompard, Ettore; Wu, Di; Xue, Fei

doi:10.1016/j.epsr.2011.01.021

Cited by 181 publications

(117 citation statements)

References 20 publications

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“…In [7], they investigate the vulnerability of power grid networks subject to hateful attacks according to a new framework. In [8], they discuss the draw backs of a pure topological approach. This fails the power system applications by capture the engineering features.…”

Section: Iiliterature Surveymentioning

confidence: 99%

Power System Severity Analysis under Generator Outage Condition

Sangu¹,

Reddy²,

Sivanagaraju³

2015

IJAREEIE

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Now a day because of the continuous increase in power demand on a power system increases the importance of the power system severity analysis for secured operation. The contingency in a power system may be because of the outage of transmission lines or the generators. Out of which, generator outage condition is the most critical one. In this paper, the power system severity is analyzed under generator outage condition. The most sensitive generator(s) in a given system is identified using generator shift factors. The complete methodology of the proposed methodology to analyze the power system severity in terms of transmission line loadings and bus voltage magnitudes is analyzed on standard IEEE-14 bus test system with supporting numerical and graphical results.

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Section: Iiliterature Surveymentioning

confidence: 99%

Power System Severity Analysis under Generator Outage Condition

Sangu¹,

Reddy²,

Sivanagaraju³

2015

IJAREEIE

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“…Method 1 is the method proposed in this paper. Methods 2 and 3 measure node importance by extended betweenness T(v) and net-ability drop DA(Y) [13], respectively. Extended betweenness evaluates the importance of a node from the perspective of topology and power transmission limits.…”

Section: Application In Ieee 118-bus Systemmentioning

confidence: 99%

“…It is proposed an index of node importance combining structure of overlapping community in power grid, system running characteristic and reactance values of transmission lines in [12]. The extended betweenness and net-ability drop are defined as indexes of node importance with consideration of electric distance, power transfer distribution factor and line flow limit in [13]. In above methods, power grid is abstracted as a weighted and undirected graph.…”

Section: Introductionmentioning

confidence: 99%

Evaluation method of node importance for power grid considering inflow and outflow power

Wang

Shan

Ying³

et al. 2016

J. Mod. Power Syst. Clean Energy

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The effective identifications of important nodes in power grid are foundations of differentiated management and stable operation of power grid. However, the current studies on this field are not thorough enough. This paper applies the model based on co-citation (MBCC)-hypertext induced topic selection (HITS) algorithm used in web page ranking to power grid and proposes an index to determine node importance of power grid from the perspectives of inflow and outflow power. MBCC-HITS algorithm is modified considering load, power source, and line flow comprehensively for the differences between Internet and power grid in this paper. Then a method for evaluating node importance is proposed using the modified algorithm. Lastly, the rationality and validity of the proposed method are verified by comparisons with other methods in case studies of IEEE 14-bus and 118-bus systems.

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“…For example, empirical studies [11], [23]- [26] have provided insights into the historical vulnerability of a network to observed weather conditions. Monte-Carlo simulation based approaches have been used to model the stochastic behavior and dynamics of electricity systems during disruptive events [17], [27]- [29]. However, most previous research has used artificial or simplified network structures (e.g., IEEE bus-bar models) or transformed an electricity system into a simplified form.…”

Section: Introductionmentioning

confidence: 99%

Integrated Approach to Assess the Resilience of Future Electricity Infrastructure Networks to Climate Hazards

Wilkinson

Dawson

et al. 2018

IEEE Systems Journal

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Abstract-Electricity systems are undergoing unprecedented change, with growing capacity for low-carbon generation, and an increasingly distributed approach to network control. Furthermore, the severity of climate related threats is projected to increase. To improve our understanding of the risks from these changes, this paper presents a novel modeling approach to assess the resilience of future electricity networks to climate hazards. The approach involves consideration of the: 1) evolution of electricity networks in response to changes in demand, supply, and infrastructure development policies; 2) implication that these policies have on network configuration and resilience; and 3) impacts of potential changes in climate hazard on network resilience. We demonstrate the research on the National Electricity Transmission System of Great Britain and assess the resilience of this system to changes in the intensity of wind storms under alternative energy futures. The analysis shows that infrastructure policies strongly shape the long-term spatial configuration of electricity networks and consequently this has profound impacts on their resilience. Though the system is resilient to wind storms under the current climate, our analysis shows that the system fails to meet electricity demand after an increase of only 5-10% in the intensity and frequency of wind storms, and a 50% increase could lead to the loss of 85% of peak winter demand. The approach is useful for identifying and communicating potential network risks to wider stakeholders and policy makers seeking to design a transition toward a low-carbon, yet resilient, future electricity systems.Index Terms-Complex system modeling, climate change, electricity networks, infrastructure resilience, resilience assessment.

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Structural vulnerability of power systems: A topological approach

Cited by 181 publications

References 20 publications

Power System Severity Analysis under Generator Outage Condition

Power System Severity Analysis under Generator Outage Condition

Evaluation method of node importance for power grid considering inflow and outflow power

Integrated Approach to Assess the Resilience of Future Electricity Infrastructure Networks to Climate Hazards

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