Published

2015-06-01

Proposal for an automatic system correlation between failures on electrical distribution lines and atmospheric lightning discharges

Propuesta de un sistema automático de correlación entre fallas en líneas de distribución eléctrica y descargas atmosféricas

Keywords:

Lightning, correlation, failures in distribution lines, method of entropy, decision making. (en)
Descarga atmosférica, correlación, fallas en líneas de distribución, método entrópico, toma de decisiones. (es)

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Authors

  • Vladimir Henao Céspedes Ph.D student at Universidad Nacional de Colombia-Sede Manizales. Professor at Universidad Católica de Manizales.
  • Eduardo Antonio Cano Plata Full Professor at Universidad Nacional de Colombia, Manizales, 170003, Colombia
  • Luis Fernando Díaz Cadavid Associate Professor at Universidad Nacional de Colombia, Manizales, 170003, Colombia.

This paper presents a proposal for the development of an automatic system correlation between two variables, one represented by the failures on the electrical distribution lines during a storm process and another one represented by atmospheric discharges (lightning) that happen in this process. Initially, in order to define if the failure is caused directly or indirectly by an electrical impact generated by lightning, a space-time correlation is proposed. With the obtained data a decision matrix is proposed, using an entropy method to assign weights to the failures in order to determine its severity and therefore its priority of attention. On the other hand, taking into account that the time window of observation is perhaps the most relevant parameter in the proposed correlation system, this article shows part of a simulation proposed for its calculation as well as the  mathematical bases that were used as a support for it.

El presente artículo plantea una propuesta para el desarrollo de un sistema automático de correlación entre dos variables, una representada por las fallas acaecidas en las líneas de distribución eléctrica en un proceso de tormenta y otra representada por las descargas atmosféricas (rayos) presentadas en dicho proceso. Inicialmente, para definir si la falla es causada directa o indirectamente por un impacto eléctrico generado por un rayo, se propone una correlación espacio-temporal. Con los datos obtenidos se propone elaborar una matriz de decisión usando, a su vez, un método de entropía para asignar pesos a las fallas con el fin de determinar su gravedad y por lo tanto su prioridad de atención. Por otro lado, considerando que la ventana de tiempo de observación es quizás el parámetro más relevante en el sistema de correlación propuesto, el artículo muestra parte de una simulación planteada para su cálculo, así como las bases matemáticas utilizadas como soporte de esta simulación.

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Copyright (c) 2015 Vladimir Henao Céspedes, Eduardo Antonio Cano Plata, Luis Fernando Díaz Cadavid

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