Modelling of PDIV evolution over time under multiple ageing factors for insulation of inverter-fed electrical machines

The presented study falls within the scope of research on multi-factor tests and lifetime prediction of insulation systems for electrical machines. It is an attempt to find an indicator of state or remaining life of an insulation system for inverter fed electric motors. Samples of twisted pairs are...

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Bibliographic Details
Published in2022 IEEE Industry Applications Society Annual Meeting (IAS) pp. 1 - 9
Main Authors Pietrzak, Pawel, Malec, David, Picot, Antoine, Maussion, Pascal, Hamiti, Tahar, Benmamas, Loucif, Manfe, Philippe
Format Conference Proceeding
LanguageEnglish
Published IEEE 09.10.2022
Subjects
ageing
Aging
Insulation
inverse power model
inverter-fed electrical machine
modeling
Partial discharge measurement
Partial discharges
PDIV
Temperature measurement
Voltage measurement
Wires
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Summary:The presented study falls within the scope of research on multi-factor tests and lifetime prediction of insulation systems for electrical machines. It is an attempt to find an indicator of state or remaining life of an insulation system for inverter fed electric motors. Samples of twisted pairs are subjected to high temperature and inverter voltage over long periods of time. Partial Discharge Inception Voltage (PDIV) is measured over the course of their life. The article contains the description of the experimental test bench, method of PDIV measurement and a method of analysis and modeling of the obtained PDIV evolution over time. Changes of PDIV over time are observed. The found evolution of PDIV is modeled with Inverse Power Model with a prediction error of a few percent.
ISSN:2576-702X
DOI:10.1109/IAS54023.2022.9939736