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Analysis of HVDC superimposed harmonic voltage effects on partial discharge behavior in solid dielectric media

Fard, M. A., Reid, Alistair and Hepburn, D. 2017. Analysis of HVDC superimposed harmonic voltage effects on partial discharge behavior in solid dielectric media. IEEE Transactions on Dielectrics and Electrical Insulation 24 (1) , pp. 7-16. 10.1109/TDEI.2016.005934

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Abstract

This paper presents an investigation of effects of high voltage direct current (HVDC) superimposed voltage harmonics on partial discharge (PD) behavior. Firstly, a single air filled void embedded in a slab of polymeric insulation was modeled using finite element methods (FEM). PD phenomena activated under the influence of rippled DC voltages were simulated using an interlinked environment of MATLAB and multiphysics simulation package COMSOL. Secondly, the results of the modeling were backed up by experimental tests, where HVDC superimposed harmonics were applied to artificial void samples in the lab and trends in the resultant PD characterized with varying harmonic orders and amplitudes. The results of both modeling and experiment are generally in agreement showing that as the harmonic orders and levels increase, the repetition rate of PD pulses rises in comparison to a purely DC applied voltage having the same peak amplitude. The findings of this study will assist in understanding of PD behavior under HVDC conditions where harmonic rippling occurs on the voltage waveform.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Engineering
Subjects: T Technology > TK Electrical engineering. Electronics Nuclear engineering
Publisher: Institute of Electrical and Electronics Engineers
ISSN: 1070-9878
Date of Acceptance: 13 June 2016
Last Modified: 03 Jul 2017 13:50
URI: http://orca.cf.ac.uk/id/eprint/94374

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