RF-based location of partial discharge sources using received signal features

Ephraim T. Iorkyase, Christos Tachtatzis, Ian A. Glover, Robert C. Atkinson

Research output: Contribution to journalArticlepeer-review

10 Citations (Scopus)
42 Downloads (Pure)


Partial discharges (PDs) are symptomatic of some localised defects in the insulation system of electrical equipment. PD activity emits electrical pulses in the form of radio frequency (RF) signals which can be captured using appropriate sensors. The analysis of the measured RF signals facilitate localisation of PD. This paper investigates the plausibility of using purely RF received signal features of PD pulses to locate PD at low cost. A localisation approach based on the analysis of these features has been developed, with the assumption that PDs generate unique RF spatial patterns due to the complexities and nonlinearities of RF propagation. In this approach, two distinct frequency bands which hold different PD information are exploited. PD location features are extracted from the main PD signal and the two sub-band signals. Correlation based feature selection (CFS) is employed for feature selection and dimensionality reduction. Experimental results show that PD location can be inferred from the features of the PD pulses. The application of CFS to PD data reduces memory/computational demand and improves localisation accuracy.
Original languageEnglish
Number of pages5
JournalIET High Voltage
Early online date27 Sep 2018
Publication statusE-pub ahead of print - 27 Sep 2018


  • partial discharge
  • radio frequency signals
  • electrical insulation


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