Computer simulation of dielectric relaxation phenomena

Abstract

In the study of insulating systems, the analysis of the dielectric losses and relaxation phenomena is an interesting instrument to appreciate the status of the material and the variations on medium composition due to aging effects. In this paper a computer simulation of the behavior of dielectric constant, and loss factor against the frequency and temperature is presented. At first, from the experimental data of insulation materials and taking into consideration a distribution function of relaxation times, a mathematical or an empirical distribution function for each material can be assumed. An optimized computer program has been used to calculate the distribution parameters. Also, the dependence of these parameters on the aging processes, e.g. temperature, oxidat ion will be discussed. Finally, comparison between the calculated complex dielectric constants, will be found to be in good agreement with the experimental values.