Disruption risk analysis of the overhead power lines in Portugal

Gonçalves, Ana; Marques, Margarida Correia; Loureiro, Sílvia; Nieto, Raquel; Liberato, Margarida L. R.

doi:10.1016/j.energy.2022.125583

Cited by 10 publications

(4 citation statements)

References 46 publications

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“…The relative distance to the fault location n is determined in accordance with the following well-known Expression (6):…”

Section: Resultsmentioning

confidence: 99%

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Fault Location Method for Overhead Power Line Based on a Multi-Hypothetical Sequential Analysis Using the Armitage Algorithm

Kulikov,

Ilyushin,

Loskutov

et al. 2023

Inventions

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The use of modern methods for determining the fault location (FL) on overhead power lines (OHPLs), which have high accuracy and speed, contributes to the reliable operation of power systems. Various physical principles are used in FL devices for OHPLs, as well as various algorithms for calculating the distance to the FL. Some algorithms for FL on OHPLs use emergency mode parameters (EMP); other algorithms use measurement results based on wave methods. Many random factors that determine the magnitude of the error in calculating the distance to the FL affect the operation of FL devices by EMP. Methods based on deterministic procedures used in well-known FL devices for OHPLs do not take into account the influence of random factors, which significantly increases the time to search for the fault. The authors have developed a method of FL on OHPLs based on a multi-hypothetical sequential analysis using the Armitage algorithm. The task of recognizing a faulted section of an OHPL is formulated as a statistical problem. To do this, the inspection area of the OHPL is divided into many sections, followed by the implementation of the procedure for FL. The developed method makes it possible to adapt the distortions of currents and voltages on the emergency mode oscillograms to the conditions for estimating their parameters. The results of the calculations proved that the implementation of the developed method has practically no effect on the speed of the FL algorithm for the OHPL by EMP. This ensures the uniqueness of determining the faulted section of the OHPL under the influence of random factors, which leads to a significant reduction in the inspection area of the OHPL. The application of the developed method in FL devices for OHPLs will ensure the required reliability of power supply to consumers and reduce losses from power outages by minimizing the time to search for a fault.

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“…The relative distance to the fault location n is determined in accordance with the following well-known Expression (6):…”

Section: Resultsmentioning

confidence: 99%

“…At the same time, a number of countries have long-term programs to convert overhead power lines into cable ones [3,4]. This is due to the susceptibility of OHPLs to the influence of many natural and technogenic factors [5][6][7]. As a result, OHPLs have low reliability indicators compared to cable transmission lines [8,9].…”

Section: Introductionmentioning

confidence: 99%

Fault Location Method for Overhead Power Line Based on a Multi-Hypothetical Sequential Analysis Using the Armitage Algorithm

Kulikov,

Ilyushin,

Loskutov

et al. 2023

Inventions

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“…Spatial analysis enables the examination of geographic data to uncover patterns, relationships, and trends pertinent to port operations and vulnerabilities [29]. Meanwhile, risk evaluation entails the systematic assessment of potential threats and their likelihood of occurrence, as well as the severity of their consequences [30].…”

Section: Introductionmentioning

confidence: 99%

Spatial Analysis and Risk Evaluation for Port Crisis Management Using Integrated Soft Computing and GIS-Based Models: A Case Study of Jazan Port, Saudi Arabia

Alshareef,

Aljahdali,

Alghanmi

et al. 2024

Sustainability

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A hazard zoning map is the most essential tool during the crisis management cycle’s prevention and risk reduction phase. In this study, a geographic information system (GIS) is applied to the crisis management of ports through the preparation of a risk zoning map in Jazan Port, Saudi Arabia, using a novel integrated model of the fuzzy hierarchical analysis process and emotional artificial neural network (FAHP-EANN). The objective is to more accurately identify the highly potential risk zones in the port through hybrid techniques, which mitigates the associated life and financial damages through proper management during a probable hazard. Prior to creating the risk zoning map, every potential port accident is identified, categorized into six criteria, and assigned a weight through the utilization of a machine learning algorithm. The findings indicate that the three most effective criteria for the risks of Jazan Port are land fires, pollution and dangerous substances, and human behavior, respectively. A zoning map of all risks in Jazan Port was generated by using the weights obtained for each of the major accidents. This map may be utilized in the development of crisis prevention measures for the port and in the formation of crisis management units.

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“…Impacts of the climatic factors and their changes on the reliability, stability and operability of electric power systems are studied for various countries: Europe [1,2], the USA [3,4], China [5,6], Russia [7,8,9]. The high relevance of this topic is linked to increased requirements towards energy security, including challenges linked with decentralization of infrastructure facilities.…”

Section: Introductionmentioning

confidence: 99%

Actual and design wind loads for overhead transmission lines in the Central European part of Russia

Loktionov,

Fedotova,

Kondrateva

et al. 2023

IOP Conf. Ser.: Earth Environ. Sci.

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This paper reveals an impact of the climatic loads on the sustainable operation of power grid facilities. An overview is provided considering various international standards related to the design of overhead transmission lines. The aim of the research was to analyze and compare the actual and design values of wind loads for transmission lines located in the Central European part of Russia and operated by the power grid company “Rosseti Center and Volga Region”. An analysis of wind load dynamics has been carried out considering the territory of 9 subjects of Russia and 1983-2022 timeframe. The actual climate data were computed according to the direct measurements of the weather stations. Nomograms of the maximum annual wind speeds are formed utilizing the first limiting Gumbel distribution for two climatic regions of the research area. The retrospective wind loads values were compared against the design values. The results of the study show that climate standards should be updated more frequently as it is the case nowadays, in particular, it relates to revision of existing wind loads or recalculation of wind speed correction factors for the near future.

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Disruption risk analysis of the overhead power lines in Portugal

Cited by 10 publications

References 46 publications

Fault Location Method for Overhead Power Line Based on a Multi-Hypothetical Sequential Analysis Using the Armitage Algorithm

Fault Location Method for Overhead Power Line Based on a Multi-Hypothetical Sequential Analysis Using the Armitage Algorithm

Spatial Analysis and Risk Evaluation for Port Crisis Management Using Integrated Soft Computing and GIS-Based Models: A Case Study of Jazan Port, Saudi Arabia

Actual and design wind loads for overhead transmission lines in the Central European part of Russia

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