In this paper a novel approach to model partial discharges (PD) activity taking place inside a spherical void in epoxy resin system has been traced. The approach is based on a time varying conductance of the inner void, subjected to multistress conditions: voltage, temperature and pressure. A simple lumped circuit macro-model simulates the global effects of PD activity: the different parameters influencing the discharge phenomenon in the void are taking into account by using a physical approach resulting in a time varying conductance inside the circuit. The evaluated PD activity has been compared with experimental and simulated one for the accessible and inaccessible part of the system. A discussion on the observed changes in PD activity has been reported.

Ala, G., Candela, R., Romano, P., Viola, F. (2011). Simplified Hybrid PD Model in Voids. In 8th IEEE Symposium on Diagnostics for Electrical Machines, Power Electronics & Drives (pp.451-455). IEEE [10.1109/DEMPED.2011.6063662].

Simplified Hybrid PD Model in Voids

ALA, Guido;CANDELA, Roberto;ROMANO, Pietro;VIOLA, Fabio
2011-01-01

Abstract

In this paper a novel approach to model partial discharges (PD) activity taking place inside a spherical void in epoxy resin system has been traced. The approach is based on a time varying conductance of the inner void, subjected to multistress conditions: voltage, temperature and pressure. A simple lumped circuit macro-model simulates the global effects of PD activity: the different parameters influencing the discharge phenomenon in the void are taking into account by using a physical approach resulting in a time varying conductance inside the circuit. The evaluated PD activity has been compared with experimental and simulated one for the accessible and inaccessible part of the system. A discussion on the observed changes in PD activity has been reported.
Settore ING-IND/31 - Elettrotecnica
set-2011
IEEE Int. Symp. on Diagnostics for Electrical Machines, Power Electronics & Drives
Bologna
5-8 settembre 2011
8th
2011
5
Ala, G., Candela, R., Romano, P., Viola, F. (2011). Simplified Hybrid PD Model in Voids. In 8th IEEE Symposium on Diagnostics for Electrical Machines, Power Electronics & Drives (pp.451-455). IEEE [10.1109/DEMPED.2011.6063662].
Proceedings (atti dei congressi)
Ala, G; Candela, R; Romano, P; Viola, F
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10447/60463
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