Finite-element-analysis models for numerical simulation of partial discharges in spherical cavities within solid dielectrics: a review and a novel method

Rodríguez Serna, Johnatan Mauricio and Albarracín Sánchez, Ricardo and Mas’ud, Abdullahi Abubakar (2020). Finite-element-analysis models for numerical simulation of partial discharges in spherical cavities within solid dielectrics: a review and a novel method. "High Voltage", v. 5 (n. 5); pp. 556-568. ISSN 2397-7264. https://doi.org/10.1049/hve.2019.0392.

Description

Title: Finite-element-analysis models for numerical simulation of partial discharges in spherical cavities within solid dielectrics: a review and a novel method
Author/s:
  • Rodríguez Serna, Johnatan Mauricio
  • Albarracín Sánchez, Ricardo
  • Mas’ud, Abdullahi Abubakar
Item Type: Article
Título de Revista/Publicación: High Voltage
Date: October 2020
ISSN: 2397-7264
Volume: 5
Subjects:
Freetext Keywords: Insulation; Reviews; Voids (solid); Ageing; Finite element analysis; Partial discharges; Surface conductivity
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

During the last two decades, partial discharges (PDs) modelling methods have been used as a complement of insulation diagnosis systems of electrical assets. Finite-element-analysis models for simulating PDs in cavities within solid dielectric materials are reviewed and a novel model is presented, which combines the main advantages of electrostatic and electric current models. The theoretical background is presented and some limitations and restrictions are discussed. A case of study was implemented for three different ageing conditions and simulation results exhibit good agreement with reported values by other authors in the literature. An analysis of variations of PD behaviour with ageing as a function of temperature and pressure is briefly presented. It is concluded that more research is needed to include physical and chemical interactions on the void surface and that the cavity surface conductivity plays a fundamental role in the PD simulations at advanced ageing conditions.

More information

Item ID: 67359
DC Identifier: http://oa.upm.es/67359/
OAI Identifier: oai:oa.upm.es:67359
DOI: 10.1049/hve.2019.0392
Official URL: https://digital-library.theiet.org/content/journals/10.1049/hve.2019.0392
Deposited by: Memoria Investigacion
Deposited on: 11 Jun 2021 06:54
Last Modified: 11 Jun 2021 06:54
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