Mitigation of Power System Blackout with Microgrid System

Venkatanagaraju, Kasimala; Biswal, Monalisa

doi:10.1007/978-981-15-1781-5_11

Cited by 4 publications

(2 citation statements)

References 39 publications

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“…This shows the possibility of implementing containment strategies for cascading failures in order to avoid the total collapse of the infrastructure. There are already studies addressing the above problem [22], [23].…”

Section: A Vulnerability Assessmentmentioning

confidence: 99%

Vulnerability and Resilience Assessment of Power Systems: From Deterioration to Recovery via a Topological Model based on Graph Theory

Beyza

Bravo²,

García-Paricio

et al. 2020

2020 IEEE International Autumn Meeting on Power, Electronics and Computing (ROPEC)

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Traditionally, vulnerability is the level of degradation caused by failures or disturbances, and resilience is the ability to recover after a high-impact event. This paper presents a topological procedure based on graph theory to evaluate the vulnerability and resilience of power grids. A cascading failures model is developed by eliminating lines both deliberately and randomly, and four restoration strategies inspired by the network approach are proposed. In the two cases, the degradation and recovery of the electrical infrastructure are quantified through four centrality measures. Here, an index called flow-capacity is proposed to measure the level of network overload during the iterative processes. The developed sequential framework was tested on a graph of 600 nodes and 1196 edges built from the 400 kV high-voltage power system in Spain. The conclusions obtained show that the statistical graph indices measure different topological aspects of the network, so it is essential to combine the results to obtain a broader view of the structural behaviour of the infrastructure.

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Section: A Vulnerability Assessmentmentioning

confidence: 99%

Vulnerability and Resilience Assessment of Power Systems: From Deterioration to Recovery via a Topological Model based on Graph Theory

Beyza

Bravo²,

García-Paricio

et al. 2020

2020 IEEE International Autumn Meeting on Power, Electronics and Computing (ROPEC)

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“…The amount and profile of electricity demand in the minimum state of system service can be used to derive tailored options for load shedding in blackout situations and for more efficient energy management [17,18].…”

mentioning

confidence: 99%

Impact of COVID-19 on Electricity Demand: Deriving Minimum States of System Health for Studies on Resilience

Manjunath

Yeligeti

Fyta

et al. 2021

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To assess the resilience of energy systems, i.e., the ability to recover after an unexpected shock, the system’s minimum state of service is a key input. Quantitative descriptions of such states are inherently elusive. The measures adopted by governments to contain COVID-19 have provided empirical data, which may serve as a proxy for such states of minimum service. Here, we systematize the impact of the adopted COVID-19 measures on the electricity demand. We classify the measures into three phases of increasing stringency, ranging from working from home to soft and full lockdowns, for four major electricity consuming countries of Europe. We use readily accessible data from the European Network of Transmission System Operators for Electricity as a basis. For each country and phase, we derive representative daily load profiles with hourly resolution obtained by k-medoids clustering. The analysis could unravel the influence of the different measures to the energy consumption and the differences among the four countries. It is observed that the daily peak load is considerably flattened and the total electricity consumption decreases by up to 30% under the circumstances brought about by the COVID-19 restrictions. These demand profiles are useful for the energy planning community, especially when designing future electricity systems with a focus on system resilience and a more digitalised society in terms of working from home.

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Backup Protection Scheme to Prevent Unintended Relay Operation During Voltage Stress and Load Encroachment

Venkatanagaraju

Biswal

2020

2020 International Conference on Communication and Signal Processing (ICCSP)

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Mitigation of Power System Blackout with Microgrid System

Cited by 4 publications

References 39 publications

Vulnerability and Resilience Assessment of Power Systems: From Deterioration to Recovery via a Topological Model based on Graph Theory

Vulnerability and Resilience Assessment of Power Systems: From Deterioration to Recovery via a Topological Model based on Graph Theory

Impact of COVID-19 on Electricity Demand: Deriving Minimum States of System Health for Studies on Resilience

Backup Protection Scheme to Prevent Unintended Relay Operation During Voltage Stress and Load Encroachment

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