Assessment of the Feasibility of Applying the Electromagnetic Time Reversal Theory to Locate Defects in Grounding Electrodes

Rafael Alipio (), Naiara Duarte, Hamidreza Karami, Marcos Rubinstein and Farhad Rachidi ()
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Rafael Alipio: Electromagnetic Compatibility Laboratory, Swiss Federal Institute of Technology Lausanne (EPFL), 1015 Lausanne, Switzerland
Naiara Duarte: Electromagnetic Compatibility Laboratory, Swiss Federal Institute of Technology Lausanne (EPFL), 1015 Lausanne, Switzerland
Hamidreza Karami: Institute for Information and Communication Technologies, University of Applied Sciences Western Switzerland, 1400 Yverdon-les-Bains, Switzerland
Marcos Rubinstein: Institute for Information and Communication Technologies, University of Applied Sciences Western Switzerland, 1400 Yverdon-les-Bains, Switzerland
Farhad Rachidi: Electromagnetic Compatibility Laboratory, Swiss Federal Institute of Technology Lausanne (EPFL), 1015 Lausanne, Switzerland

Energies, 2023, vol. 16, issue 13, 1-17

Abstract: In recent years, the electromagnetic time reversal (EMTR) theory has been successfully applied for locating various sources of disturbances, such as short-circuit faults, in power systems. In this paper, a theoretical analysis of the feasibility of applying EMTR to locate defects (corrosion and break points) in grounding systems is presented. An EMTR algorithm to locate faults in buried grounding wires is proposed and a comprehensive analysis with respect to some salient influencing parameters, for instance, the ground conductivity, medium losses, the defect location and type (soft or hard), is carried out. According to the obtained results, the proposed method appears to be very promising for real applications. The need for experimental validation to confirm the applicability of this method is emphasized.

Keywords: electromagnetic time reversal; grounding systems; defect location; break points; electrode corrosion; telegrapher’s equations (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2023
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