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Cited by 289High voltage insulation and dielectric phenomenaPower Transformer Diagnostics and InsulationElectromagnetic Compatibility and Noise Suppression

The DOI matches its Crossref record.

Relation between space charge accumulation and partial discharge activity in enameled wires under PWM-like voltage waveforms

Fabiani, D., Montanari, G.C., Cavallini, A., Mazzanti, G.·2004·IEEE Transactions on Dielectrics and Electrical Insulation
DOI 10.1109/tdei.2004.1306718
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Abstract

It has been observed that voltage waveforms generated by power electronic converters may affect significantly the reliability of electric motor insulation. Since partial discharges are considered to be the main cause of the reliability loss, new enamel insulations for magnet wires are being developed in order to withstand better stress amplification. The electrical characterization of these insulating materials is often carried out through aging tests which may provide estimation of life under different stress levels and conditions. However, deeper investigation of aging phenomena due to supply voltage waveforms is needed, especially regarding the relation between aging factors and stress conditions. This paper deals with this topic, showing experimental evidences of relation between partial discharge quantities (e.g., inception voltage, repetition frequency, amplitude) and electrical properties, associated with charge accumulation, which can be directly evaluated through space charge measurements. Characterization of insulating materials and comparison of materials candidate for application in power electronic waveform environment can be carried out resorting to the methodology proposed here. This approach can provide, therefore, a useful feedback to wire manufacturers regarding, e.g., the choice of additive nature and enamel components for magnet wires in power-electronic controlled motors.

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Research works printed but not linked: 27

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  2. 0, Evaluation of Electrical Stresses Produced by Repetitive Impulses Part 1 General methods of evaluation of electrical endurance (lEC 98–160 CDV) Part 2 State of the art report (62068–2 (2001–08))
  3. montanari, 1998, Space charges as a trigger for electrical aging of polymeric insulation, Charges In Solid Dielectrics, 259
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Metadata

Authors
Fabiani, D., Montanari, G. C., Cavallini, A., & Mazzanti, G.
Affiliations
University of Bologna (IT)
ORCID
Venue
IEEE Transactions on Dielectrics and Electrical Insulation
Publisher
Institute of Electrical and Electronics Engineers (IEEE)
Published
2004-06
Volume
11
Issue
3
Pages
193-205
ISSN
1070-9878 (ISSN-L)
DOI
10.1109/tdei.2004.1306718
OpenAlex
W2164055808
Cited by
289
References
0
Citations by year
2026: 7 · 2025: 16 · 2024: 21 · 2023: 16 · 2022: 14 · 2021: 20 · 2020: 15 · 2019: 16 · 2018: 13 · 2017: 19 · 2016: 20 · 2015: 6 · 2014: 19 · 2013: 16 · 2012: 9
FWCI
4.37
Type
journal article
Language
en
Open access
closed
Licence
ieeexplore.ieee.org/Xplorehelp/downloads/license-information/IEEE.html (vor)
Locations
  • IEEE Transactions on Dielectrics and Electrical Insulation (publishedVersion)
  • Archivio istituzionale della ricerca (Alma Mater Studiorum Università di Bologna) (submittedVersion)
Topics
  • Physical Sciences › Engineering › Electrical and Electronic Engineering › High voltage insulation and dielectric phenomena
  • Physical Sciences › Engineering › Electrical and Electronic Engineering › Power Transformer Diagnostics and Insulation
  • Physical Sciences › Engineering › Electrical and Electronic Engineering › Electromagnetic Compatibility and Noise Suppression
Keywords
space charge accumulation, partial discharge, power converters, electric motor insulation, insulation degradation, inception voltage, stress amplification

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