Development of testing methods for winding turn-to-turn insulation of low voltage motors fed by PWM converters

Veronika Bolgova, Stéphane Lefebvre, Sami Hlioui, Nidhal Boucenna, François Costa, Andrey Leonov

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

Electrical insulation materials quality and reliability play a central role in providing the electrical machines reliable operation. It is well recognized that insulating system of low voltage motor fed by converter is exposed to electrical stresses arising from repetitive square waveform of supplying voltage while additional impact of temperature, vibrations and environmental operation conditions are imposed. The implementation of wide bandgap power semiconductors as SiC and GaN in recent years allows to create very powerful converters with high switching speed. On the other hand it leads to a remarkable increasing electro-thermal constraints applied to windings' turn-to-turn insulation of motors fed by such converters. The relevance of new testing methods and test benches is well found by remarkable modern advances in semiconductors technology. Testing methods for low voltage motors winding wires insulation proposed in this paper permit to evaluate the withstand capability of insulation materials applying the high frequency modulated signals representative for traditional converters supplying (μs level of impulse rise/fall time), as well as the voltage waveforms with very straight adjustable dV/dt, very fast rise time and fall time (ns level of impulse rise/fall time) engendered by new semiconductor devices based on wide bandgap materials. The possibility to modify experiment parameters in wide rage for insulation endurance tests allows to obtain a rich data for further analysis.

Original languageEnglish
Title of host publication2017 19th European Conference on Power Electronics and Applications, EPE 2017 ECCE Europe
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9789075815276
DOIs
Publication statusPublished - 6 Nov 2017
Event19th European Conference on Power Electronics and Applications, EPE 2017 ECCE Europe - Warsaw, Poland
Duration: 11 Sep 201714 Sep 2017

Publication series

Name2017 19th European Conference on Power Electronics and Applications, EPE 2017 ECCE Europe
Volume2017-January

Conference

Conference19th European Conference on Power Electronics and Applications, EPE 2017 ECCE Europe
CountryPoland
CityWarsaw
Period11.9.1714.9.17

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Keywords

  • Electrical machine
  • Insulation
  • Pulse Width Modulation (PWM)
  • Silicon Carbide (SiC)
  • Test bench
  • Variable speed drive
  • Wide bandgap devices

ASJC Scopus subject areas

  • Mechanical Engineering
  • Electrical and Electronic Engineering
  • Energy Engineering and Power Technology

Cite this

Bolgova, V., Lefebvre, S., Hlioui, S., Boucenna, N., Costa, F., & Leonov, A. (2017). Development of testing methods for winding turn-to-turn insulation of low voltage motors fed by PWM converters. In 2017 19th European Conference on Power Electronics and Applications, EPE 2017 ECCE Europe [8099363] (2017 19th European Conference on Power Electronics and Applications, EPE 2017 ECCE Europe; Vol. 2017-January). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.23919/EPE17ECCEEurope.2017.8099363