The influence of antenna positioning errors on the radio-frequency localization of partial discharge sources

José Manuel Fresno, Guillermo Robles, Brian G. Stewart, Juan Manuel Martínez-Tarifa

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Abstract

Electrical insulation can have imperfections due to manufacturing or ageing. When the insulation is electrically stressed, partial discharge (PD) pulses, with very fast rise-times and short-time durations, may occur. One of the consequences of charges being accelerated within the discharge is the emission of electromagnetic energy. The measurement of these emissions is widely used to identify defective insulation within high voltage equipment and help in predictive and planned maintenance in order to prevent sudden failure. The location of the source of the radiated PD signals may be determined using multi lateration techniques using an array of at least four antennas. Depending on the relative position between the antennas and the PD source, the pulsed emissions from the PD source arrive at each antenna at different times. The relative time differences of arrivals (TDOA) together with the antenna positions are variables used to locate the PD source in 3D space. This paper investigates the accuracy of the location determination of the source as a consequence of systematic errors on the positioning of the antennas. These errors are analyzed for three different antenna array configurations and for different vector directions from the arrays. Additionally, the least sensitive layout in relation to antenna positioning errors is proposed to assist in improving the location accuracy of PD sources.
Original languageEnglish
Title of host publicationProceedings of the 3rd International Electronic Conference on Sensors and Applications
EditorsThomas Messervey
PublisherMDPI AG
Number of pages7
Volume3
DOIs
Publication statusPublished - 14 Nov 2016
Event3rd International Electronic Conference on Sensors and Applications -
Duration: 15 Nov 201630 Dec 2016
http://sciforum.net/conference/ecsa-3

Publication series

NameSciforum Electronic Conference Series
PublisherMDPI
Volume3

Conference

Conference3rd International Electronic Conference on Sensors and Applications
Abbreviated titleECSA 2016
Period15/11/1630/12/16
Internet address

Keywords

  • radio-frequency localization
  • partial discharges
  • antenna positioning
  • measurement errors
  • electrical insulation

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  • Research Output

    Survey on the performance of source localization algorithms

    Fresno, J. M., Robles, G., Martínez-Tarifa, J. M. & Stewart, B. G., 18 Nov 2017, In : Sensors. 17, 11, 25 p., 2666.

    Research output: Contribution to journalArticle

    Open Access
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  • 21 Citations (Scopus)
    27 Downloads (Pure)

    Cite this

    Fresno, J. M., Robles, G., Stewart, B. G., & Martínez-Tarifa, J. M. (2016). The influence of antenna positioning errors on the radio-frequency localization of partial discharge sources. In T. Messervey (Ed.), Proceedings of the 3rd International Electronic Conference on Sensors and Applications (Vol. 3). [E003] (Sciforum Electronic Conference Series; Vol. 3). MDPI AG. https://doi.org/10.3390/ecsa-3-E003