Numerical simulation of temperature and pressure changes due to partial discharges in spherical cavities within solid dielectrics at different ageing conditions

Rodríguez Serna, Johnatan Mauricio and Albarracín Sánchez, Ricardo (2019). Numerical simulation of temperature and pressure changes due to partial discharges in spherical cavities within solid dielectrics at different ageing conditions. "Energies", v. 12 (n. 24); pp. 4771-4782. ISSN 1996-1073. https://doi.org/10.3390/en12244771.

Description

Title: Numerical simulation of temperature and pressure changes due to partial discharges in spherical cavities within solid dielectrics at different ageing conditions
Author/s:
  • Rodríguez Serna, Johnatan Mauricio
  • Albarracín Sánchez, Ricardo
Item Type: Article
Título de Revista/Publicación: Energies
Date: December 2019
ISSN: 1996-1073
Volume: 12
Subjects:
Freetext Keywords: Partial discharges; Electrical insulation; PD analytical model; Insulation ageing; Finite-element analysis
Faculty: E.T.S.I. Diseño Industrial (UPM)
Department: Ingeniería Eléctrica, Electrónica Automática y Física Aplicada
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

Partial Discharges (PD) behavior during ageing of the insulation systems exhibits variations that depend on changes in gas filling characteristics and surface condition. In this article, numerical simulations of temperature and pressure behavior in an air-filled spherical cavity within a homogenous solid dielectric material due to PD activity are presented. An Analytical-Finite Element Analysis simulation approach was implemented in MATLAB and results exhibit reasonable agreement with experimental measurements reported by other authors. Simulation results allow concluding that pressure changes are directly related to variations in the PD behavior. In addition, affectations to cavity surface due to temperature increments can be discarded.

More information

Item ID: 67358
DC Identifier: http://oa.upm.es/67358/
OAI Identifier: oai:oa.upm.es:67358
DOI: 10.3390/en12244771
Official URL: https://www.mdpi.com/1996-1073/12/24/4771/htm
Deposited by: Memoria Investigacion
Deposited on: 11 Jun 2021 07:01
Last Modified: 11 Jun 2021 07:01
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