The Phase-Resolved-Partial-Discharge pattern (PRPD) is a conventional technique used for the evaluation of partial discharges (PD) phenomena in High-Voltage-Alternating-Current (HVAC) systems. This map is constructed by plotting the peak of each detected pulses as a function of the phase angle of the supply voltage. Therefore it is obvious that this technique cannot be used for the analysis of data from PD mesaurement under different supply voltage condition (DC). The aim of this paper is to evaluate the application of the Time-Frequency map (TF map) for the analysis of a dataset obtained from PD measurement under DC voltage. A density-based clustering algorithm was also used to gain more insight from the collected data. The results show that, with this approach, it's possible to perform a noise rejection and identify PD pulses.

Di Fatta Alessio, Romano Pietro, Imburgia Antonino, Ala Guido, Rizzo Giuseppe, Li Vigni Vincenzo, et al. (2022). Use of Time-Frequency map combined with DBSCAN algorithm for separation of partial discharge pulses under DC voltage. In Annual Report - Conference on Electrical Insulation and Dielectric Phenomena, CEIDP [10.1109/CEIDP55452.2022.9985393].

Use of Time-Frequency map combined with DBSCAN algorithm for separation of partial discharge pulses under DC voltage

Di Fatta Alessio
Writing – Original Draft Preparation
;
Romano Pietro
Writing – Review & Editing
;
Imburgia Antonino
Visualization
;
Ala Guido
Supervision
;
Rizzo Giuseppe
Resources
;
Li Vigni Vincenzo
Validation
;
2022-10-01

Abstract

The Phase-Resolved-Partial-Discharge pattern (PRPD) is a conventional technique used for the evaluation of partial discharges (PD) phenomena in High-Voltage-Alternating-Current (HVAC) systems. This map is constructed by plotting the peak of each detected pulses as a function of the phase angle of the supply voltage. Therefore it is obvious that this technique cannot be used for the analysis of data from PD mesaurement under different supply voltage condition (DC). The aim of this paper is to evaluate the application of the Time-Frequency map (TF map) for the analysis of a dataset obtained from PD measurement under DC voltage. A density-based clustering algorithm was also used to gain more insight from the collected data. The results show that, with this approach, it's possible to perform a noise rejection and identify PD pulses.
Settore ING-IND/31 - Elettrotecnica
Di Fatta Alessio, Romano Pietro, Imburgia Antonino, Ala Guido, Rizzo Giuseppe, Li Vigni Vincenzo, et al. (2022). Use of Time-Frequency map combined with DBSCAN algorithm for separation of partial discharge pulses under DC voltage. In Annual Report - Conference on Electrical Insulation and Dielectric Phenomena, CEIDP [10.1109/CEIDP55452.2022.9985393].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10447/578878
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