A partial discharge testing system based on a 5-level converter with different control signals

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dc.contributor.authorYomkaew, N.
dc.contributor.authorMarukatat, N.
dc.contributor.authorYutthagowith, P.
dc.date.accessioned2026-08-06T10:21:55Z
dc.date.available2026-08-06T10:21:55Z
dc.date.issued2018-11-01
dc.description.abstractIn this paper, analyses of a partial discharge (PD) testing systems using a voltage source from a 5-level converter with different control signals are presented. The low voltage source with 200 Hz of the test system is generated using the 5-level converter. The converter connected to a high voltage transformer, a partial discharge detection. The LC-filter type is set for the test system. The efficiency of voltage source from the 5-level converter with different control signal topologies, i.e. 5-level square wave, 5-level quasi-square wave, and 5-level sinusoidal pulse width modulation (SPWM) with modulation index (m<inf>a</inf>) of 1.0. The effect of the topologies to partial discharge test system is presented and compared in cases of the voltage difference, total harmonic distortion (THD<inf>v</inf>) of the output voltage, and the background noises in the partial discharge testing system with no-load and load test with a potential transformer (PT). It is found that the 5-level sinusoidal pulse width modulation (SPWM) with modulation index 1.0 provides the best performance in cases of the voltage difference and THD<inf>v</inf> of below 5%, and the background noise of below 2.5 pC.
dc.identifier.citationAustralasian Universities Power Engineering Conference Aupec 2018, 2018
dc.identifier.doi10.1109/AUPEC.2018.8758027
dc.identifier.other2-s2.0-85069442965
dc.identifier.urihttps://dspace.kmitl.ac.th/handle/123456789/9133
dc.sourceAustralasian Universities Power Engineering Conference Aupec 2018
dc.subject5-level converter
dc.subjectpartial discharge
dc.subjectquasi-square wave
dc.subjectsinusoidal pulse width modulation (SPWM)
dc.subjectsquare wave
dc.titleA partial discharge testing system based on a 5-level converter with different control signals
dc.typeConference Paper

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