Communication Characteristics of Faulted Overhead High Voltage Power Lines at Low Radio Frequencies

Nermin Suljanović, Aljo Mujčić and Matej Zajc
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Nermin Suljanović: Faculty of Electrical Engineering, University of Tuzla, Franjevačka 2, 75000 Tuzla, Bosnia and Herzegovina
Aljo Mujčić: Faculty of Electrical Engineering, University of Tuzla, Franjevačka 2, 75000 Tuzla, Bosnia and Herzegovina
Matej Zajc: Faculty of Electrical Engineering, University of Ljubljana, Trzaška 25, SI-1000 Ljubljana, Slovenia

Energies, 2017, vol. 10, issue 11, 1-24

Abstract: This paper derives a model of high-voltage overhead power line under fault conditions at low radio frequencies. The derived model is essential for design of communication systems to reliably transfer information over high voltage power lines. In addition, the model can also benefit advanced systems for power-line fault detection and classification exploiting the phenomenon of changed conditions on faulted power line, resulting in change of low radio frequency signal propagation. The methodology used in the paper is based on the multiconductor system analysis and propagation of electromagnetic waves over the power lines. The model for the high voltage power line under normal operation is validated using actual measurements obtained on 400 kV power line. The proposed model of faulted power lines extends the validated power-line model under normal operation. Simulation results are provided for typical power line faults and typical fault locations. Results clearly indicate sensitivity of power-line frequency response on different fault types.

Keywords: high-voltage power-line; communications; fault detection; signal propagation; modelling; power line carrier (PLC) (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: 2017
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