Modeling and Simulation of Partial Discharge Pulse Generator

Abstract

In high voltage (HV) power system, the insulating materials used, is not immaculate in every aspect and holds impurities. The occurrence of air particles is a major contaminations in insulating equipments and extremely unwanted as it causes a local region inside the insulator which is very weak as compared to its surroundings. The kind of faults created because of insulation breakdown as an outcome of localized electrical strain inside the insulation, whether solid or fluids is broadly pervasive and it is known as partial discharge (PD).The high voltage equipments have to be tested for PD to ensure its present quality. PD technology used for diagnosing the state of such equipment has been of extreme importance. Thus, accurateness should be increased and uncertainty should be decreased in the measurement of PD. The reliability of the measurement results is strongly depends on the calibration of the PD measurement system. Such an arrangement needs a standard PD pulse generator which can trace the uncertainties of its components and estimate the expanded uncertainties.A PD pulse generator has been modeled in SIMULINK for generating PD pulses having charge of identified magnitude. The whole simulation has been done with MATLAB platform.