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Title: The applications of the boundary element method in high voltage systems
Author: Jones, S. P.
Awarding Body: University College of Swansea
Current Institution: Swansea University
Date of Award: 1995
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This thesis describes the development and enhancement of the theory of the Boundary Element Method (BEM) as applied to electro-static systems. The objective of this study was the creation of a user-friendly suite of computer codes based on the BEM algorithms. The work starts by examining the integral equivalent of Poisson's equation which is the basic founding block of the method. A brief study of the basic algorithms involved in the method is carried out, together with a review of the different possible kinds of surface elements that can be found in high voltage applications. This is followed by descriptions of the computational methods used to solve for the electric potentials, field components and field derivatives, at any point in space. A major enhancement to the code has introduced the ability to calculate the self and mutual capacitances of any metallic bodies present in the high voltage system considered. Another major enhancement allows for solutions to be obtained in the presence of space-charge which may be in the form of rings, disks, and/or a continuous finite volume distribution. During this work a means was also developed of analysing system where charge accumulation has occurred on some or all dielectric surfaces present within the system. To test the applicability of the overall package a variety of classical solutions have been used to compare the BEM solutions against well known results. Comparisons have also been made for more complex high voltage systems where the BEM solutions have been compared with solutions obtained using other common numerical techniques e.g. the Finite Element Method or the Charge Simulation Method.
Supervisor: Not available Sponsor: Not available
Qualification Name: Thesis (Ph.D.) Qualification Level: Doctoral
EThOS ID:  DOI: Not available