6533b833fe1ef96bd129c23d

RESEARCH PRODUCT

Partial discharge of gel insulated high voltage power modules subjected to unconventional voltage waveforms

Pietro RomanoStanislaw GubanskiAntonino MadoniaFabio ViolaThomas HammarströmA. Imburgia

subject

010302 applied physicsMaterials sciencebusiness.industryAcoustics020208 electrical & electronic engineeringElectrical engineeringHigh voltage02 engineering and technologyInsulated-gate bipolar transistor01 natural sciencesSettore ING-IND/31 - ElettrotecnicaReliability (semiconductor)Partial Discharge Gel insulation IGBTvisual_artInsulation systemPower module0103 physical sciencesElectronic componentPartial discharge0202 electrical engineering electronic engineering information engineeringvisual_art.visual_art_mediumbusinessVoltage

description

Performances and duration of the new generation of high voltage power electronic components are dependent on dielectric materials aim to insulating their internal terminals. The presence of defects, some due to faults generated during the manufacturing process, but also due to the internal design of layers and connections, can cause local enhancements of electric field and consequently possible activity of partial discharges phenomena or other effects (aging, tracking) that may result in reduction of device reliability. Furthermore, the usage of unconventional voltage waveforms, like square waves or pulse width modulated waves, additionally increases the electrical aging of the insulation system as compared to conventional sinusoidal waves.

yearjournalcountryeditionlanguage
2016-10-012016 IEEE Conference on Electrical Insulation and Dielectric Phenomena (CEIDP)
https://doi.org/10.1109/ceidp.2016.7785602