Measurement of Dielectric Absorption of Capacitors by Signal Decomposition

Linus Michaeli, Ján Šaliga, Marek Godla, Jozef Lipták
Abstract:
The paper presents method of the measurement of dielectric absorption components by the analysis of discharging exponential signal from the capacitor. The method uses maximum likelihood estimation as an alternative to the Prony’ s method. The advantage of the proposed method is the suppression of the uncertainties of recovering process caused by finite input resistance and vaguely defined discharging time. The possibility to minimize the effects of integral nonlinearities of Analog-to-Digital Converter is another advantage. The comparison of the experimental results with the simulation allows assessing the accuracy of proposed approach.
Keywords:
Dielectric absorption of capacitors, Signal distortion by dielectric absorption, Signal decomposition, Maximum liklehood method.
Download:
IMEKO-TC4-2014-262.pdf
DOI:
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Event details
IMEKO TC:
TC4
Event name:
TC4 Symposium 2014
Title:

20th IMEKO TC4 Symposium on Measurements of Electrical Quantities (together with 18th TC4 International Workshop on ADC and DCA Modeling and Testing, IWADC)
"Research on Electrical and Electronic Measurement for the Economic Upturn"

Place:
Benevento, ITALY
Time:
15 September 2014 - 17 September 2014