ANALYSIS OF PARTIAL DISCHARGE SIGNAL BY FDTD TECHNIQUE
Keywords:
Electrical Insulation, Partial Discharge, Electromagnetic Wave, FDTD, UHF, PMLAbstract
Partial Discharge (PD) is one of the main causes for eventual equipment failure and it
occurs where the electric field exceeds the local dielectric strength of the insulation. The Finite
Difference Time Domain (FDTD) technique, which is a widely used electromagnetic computational
method, has been used to model propagation of PD discharges generated in the form of a Gaussian
pulse. The wave propagation in free space in the two dimensions and in three dimensions is realized
and presented in this work. The Perfectly Matched Layer (PML) which is a flexible and efficient
Absorbing Boundary Condition (ABC) has been incorporated in the simulations. Further work is
carried out by considering obstacles in path of electromagnetic wave for the analysis of propagated PD
waves.