Partial Discharge Analysis and Simulation Using the Consecutive Pulses Correlation Method

Ondřej Kozák and Josef Pihera
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Ondřej Kozák: Department of Materials and Technology, Faculty of Electrical Engineering, University of West Bohemia in Pilsen, 30100 Pilsen, Czech Republic
Josef Pihera: Department of Materials and Technology, Faculty of Electrical Engineering, University of West Bohemia in Pilsen, 30100 Pilsen, Czech Republic

Energies, 2021, vol. 14, issue 9, 1-15

Abstract: The behaviour of partial discharge as consequences of an alternating current (AC) is already well defined. AC partial discharges have completely different behaviour, background physics and parameters than partial discharges (PD) under direct current (DC) stress. This paper focuses on the most used and promising evaluation method of the PD DC stress—pulse sequence analysis (PSA). The first step is understanding and verifying the mechanisms and principles of this method. It is provided by well-known fundamentals of AC PD and by comparison with the other diagnostic and fault-locating methods such as phase-resolved partial discharge (PRPD) and pulse diagrams. The paper shows the PSA simulations and PD analyses performed at AC and partly at DC test conditions on typical PD test arrangements such as corona, surface and internal discharges. It is shown that the simulations performed, compared and validated with data obtained from measurements on different PD arrangements are a good match. This fact opens the way for the PD source recognition in DC, especially the time-resolved pulse sequence analysis described in detail in the paper.

Keywords: partial discharges; pulse sequence analysis; direct current; simulation (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: 2021
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