Application of hybrid boundary element method: Example of semishperical ground inhomogeneity

Abstract

One new, so-called hybrid boundary element method (HBEM) is presented in this paper. It is a recently proposed numerical method for stationary and quasi-stationary EM field analysis. The method application is illustrated on the example of solving the problem of modelling hemispherical ground inhomogeneity influence on grounding system. The applied procedure also includes using of quasi-stationary image-theory. The obtained results are compared with those ones based on using the Green’s function for the point source inside semi-spherical inhomogeneities as well as with the results obtained by applying COMSOL program package. [TR 33008]

Keywords

• green’s function
• ground inhomogeneity
• grounding systems
• hybrid boundary element method
• resistance
• method of moments
• quasistationary EM field