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  4. Properties of Direct-Time and Reversed-Time Transfer Functions to Locate Disturbances along Power Transmission Lines
 
conference paper

Properties of Direct-Time and Reversed-Time Transfer Functions to Locate Disturbances along Power Transmission Lines

Chen, Zhe
•
Wang, Zhaoyang
•
Paolone, Mario
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August 26, 2019
Proceedings of the 2019 IEEE Milan PowerTech
2019 IEEE Milan PowerTech

The paper discusses specific frequency-domain properties of the electromagnetic time reversal (EMTR) method applied to locate faults and, more in general, disturbances in power networks. Specifically, we investigate the properties of two transfer functions: (i) the direct-time transfer function relating the source of disturbance and the induced transients at the observation point, and (ii) the reversed-time transfer function relating the time-reversed back-injected transients and the characterization variables at a guessed location along the line. We show that, at the exact location of the disturbance, the two transfer functions are identical. This property can potentially be used as an efficient means to locate sources of disturbances in EMTR-based systems. Making reference to typical power lines and underground cables, the developed transfer function property is numerically illustrated.

  • Details
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Type
conference paper
DOI
10.1109/PTC.2019.8810552
Author(s)
Chen, Zhe
Wang, Zhaoyang
Paolone, Mario
Rachidi, Farhad
Date Issued

2019-08-26

Publisher

IEEE

Publisher place

Milan, Italy

Published in
Proceedings of the 2019 IEEE Milan PowerTech
ISBN of the book

978-1-5386-4722-6

Total of pages

6

Volume

1

Issue
Start page

1

End page

6

Subjects

Electromagnetic time reversal

•

EMTR

•

Power system disturbance

•

Transfer function

Editorial or Peer reviewed

REVIEWED

Written at

EPFL

EPFL units
SCI-STI-FR  
DESL  
Event nameEvent placeEvent date
2019 IEEE Milan PowerTech

Milan, Italy

June 23-27, 2019

Available on Infoscience
June 25, 2019
Use this identifier to reference this record
https://infoscience.epfl.ch/handle/20.500.14299/158533
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