Electromagnetic Field Computation for Power Transmission Lines Using Quasi-Static Sub-Gridding Finite-Difference Time-Domain Approach

Ramli, K. N.; Abd-Alhameed, R. A.; See, Chan H.; Atojoko, A.; Noras, J. M.; Excell, P. S.

Abstract

A new approach to the modeling of electromagnetic wave propagation and penetration in and around electrically small objects is presented. The traveling electromagnetic wave from a source is simulated by the finite-difference time-domain solution of Maxwell's equations, and a sub-gridding technique is imposed at points of interest in order to observe the electromagnetic field at high resolution. The computational burden caused by the requirement for a large number of time steps has been ameliorated by implementing the state-of-the-art quasi-static approach. The method is demonstrated by finding the induced electromagnetic fields near a buried pipeline that runs parallel to 400-kV power transmission lines; results are presented and discussed.

• Journal Article Type: Article
• Acceptance Date: Jul 21, 2013
• Online Publication Date: Dec 10, 2013
• Publication Date: Jan 2, 2014
• Deposit Date: Mar 15, 2019
• Journal: Electromagnetics
• Print ISSN: 0272-6343
• Electronic ISSN: 1532-527X
• Publisher: Taylor & Francis
• Peer Reviewed: Peer Reviewed
• Volume: 34
• Issue: 1
• Pages: 47-65
• DOI: https://doi.org/10.1080/02726343.2014.846186
• Keywords: quasi-static electromagnetic fields, finite-difference time-domain method, sub-gridding, induced electromagnetic fields, power transmission lines,
• Public URL: http://researchrepository.napier.ac.uk/Output/1662647