Publication

Analyzing Corona breakdown with a finite element-based electromagnetic solver

Juan Ramon Mosig, Michael Mattes, Francisco Edén Sorolla Rosario, Ioannis Koufogiannis
2013
Conference Papers

Abstract

This paper demonstrates how an already developed finite element code for solving electromagnetic problems can be manipulated and simply extended so as to investigate complicated corona breakdowns. A safe criterion based on the eigenvalue analysis is used in order to predict the maximum electric field that a structure can withstand without suffering from a corona breakdown. Comparison with other semi-analytical techniques developed by researchers solely focusing on high power phenomena verifies the results of the developed algorithm.

Official source

https://infoscience.epfl.ch/entities/publication/ec053606-fae0-45a8-b196-959b583d4e01

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Juan Ramon Mosig, Michael Mattes, Francisco Edén Sorolla Rosario, Ioannis Koufogiannis
2013
Conference Papers

Abstract

Official source

https://infoscience.epfl.ch/entities/publication/ec053606-fae0-45a8-b196-959b583d4e01

About this result

Related concepts (17)

Computational electromagnetics

Computational electromagnetics (CEM), computational electrodynamics or electromagnetic modeling is the process of modeling the interaction of electromagnetic fields with physical objects and the environment. It typically involves using computer programs to compute approximate solutions to Maxwell's equations to calculate antenna performance, electromagnetic compatibility, radar cross section and electromagnetic wave propagation when not in free space.

Electrical breakdown

In electronics, electrical breakdown or dielectric breakdown is a process that occurs when an electrically insulating material (a dielectric), subjected to a high enough voltage, suddenly becomes a conductor and current flows through it. All insulating materials undergo breakdown when the electric field caused by an applied voltage exceeds the material's dielectric strength. The voltage at which a given insulating object becomes conductive is called its breakdown voltage and, in addition to its dielectric strength, depends on its size and shape, and the location on the object at which the voltage is applied.

Finite element method

The finite element method (FEM) is a popular method for numerically solving differential equations arising in engineering and mathematical modeling. Typical problem areas of interest include the traditional fields of structural analysis, heat transfer, fluid flow, mass transport, and electromagnetic potential. The FEM is a general numerical method for solving partial differential equations in two or three space variables (i.e., some boundary value problems).

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