Title :
FDTD simulated propagation of electromagnetic pulses due to PD for transformer diagnostics
Author :
Abraham, Chikku ; Kulkarni, S.V.
Author_Institution :
Dept. of Energy Sci. & Eng., Indian Inst. of Technol. Bombay, Mumbai
Abstract :
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 PD signal captured at UHF has many advantages. The finite difference time domain (FDTD) technique, which is a widely used electromagnetic computational method, has been used to model propagation PD discharges generated in the form of a Gaussian pulse. The wave propagation in free space, oil and with a cylindrical metallic obstruction representing core/winding, in the two 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, for localization time difference of arrival (TDOA) approach has been used.
Keywords :
electromagnetic pulse; finite difference time-domain analysis; partial discharges; transformer insulation; FDTD simulated propagation; Gaussian pulse; PD; absorbing boundary condition; cylindrical metallic obstruction; electric field; electromagnetic computational method; electromagnetic pulses; eventual equipment failure; finite difference time domain technique; insulation; local dielectric strength; partial discharge; perfectly matched layer; time difference of arrival approach; transformer diagnostics; Electromagnetic propagation; Electromagnetic propagation in absorbing media; Electromagnetic transients; Equipment failure; Finite difference methods; Oil insulation; Partial discharges; Power transformer insulation; Pulse transformers; Time domain analysis;
Conference_Titel :
TENCON 2008 - 2008 IEEE Region 10 Conference
Conference_Location :
Hyderabad
Print_ISBN :
978-1-4244-2408-5
Electronic_ISBN :
978-1-4244-2409-2
DOI :
10.1109/TENCON.2008.4766519