Partial Discharge Modeling by Simulink

ABSTRACT: The presence of partial discharges (PD) is one of the most conspicuous signs of defects and ongoing defection of insulation in electrical equipment. In this study, partial discharges (PD) are simulated by adopting the classical PD model. In the literature, different models for partial discharges have been presented. The capacitive void model has been effectively instrumental in the study of void breakdown and its generated transients. As an alternative to this, the induced charge concept is been introduced expressing strong criticism against the capacitance modeling of voids. The aim of the study is to use this concept to examine partial discharges in solid insulators with Simulink. A model is created that can effectively represent the existence of a void in an XLPE cable, implemented in MATLAB Simulink and simulated. The effect of the conductor-void proximity on the magnitude of discharge is verified as well as the effect of void sizes. The simulated results are compared with other Simulink models created in other literatures. By this study, it is possible to get one step closer to understand the physics behind partial discharge phenomena. Keywords: Partial Discharge, Void, Induced charge concept, Simulink. …………………………………………………………………………………………………………………………