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Stochastic Detection of Partial Discharges

Tord Bengtsson ; Elisabeth Lindell ; Thomas Hammarström (Institutionen för material- och tillverkningsteknik, Högspänningsteknik)
IEEE transactions on dielectrics and electrical insulation (1070-9878). Vol. 20 (2013), 6, p. 2203-2211.
[Artikel, refereegranskad vetenskaplig]

The traditional method to detect partial discharges relies heavily on the use of high-pass filters. Whereas this is a very effective approach for normal power voltage shapes, severe problems arise when partial discharges are to be detected under waveforms generated by modern power electronics. Therefore, a technique that utilizes the random occurrence of partial discharges for detection has been developed and used for semi-square voltages. This technique has evolved since the first publications and new applications have been found. The present paper introduces the technique and discusses the necessary analysis elements, requirements imposed as well as some examples intended to show possible application areas.

Nyckelord: Partial discharges, PWM, square like voltages, measurements



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Denna post skapades 2014-01-15. Senast ändrad 2014-01-17.
CPL Pubid: 192470

 

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