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Advanced analysis of transient overvoltage in electromechanical chain fed by SiC inverter

Taghia, Bouazza and Cougo, Bernardo and Piquet, Hubert and Malec, David and Belinger, Antoine and Carayon, Jean-Pierre Advanced analysis of transient overvoltage in electromechanical chain fed by SiC inverter. (2018) In: Electrimacs 2017, 4 July 2017 - 6 July 2017 (Toulouse, France). (Unpublished)

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Abstract

Key areas in the development of More Electrical Aircraft (MEA) are, currently, DC power distribution in higher voltage levels and the use of disruptive technology such as Wide BandGap (WBG) semiconductor. Using WBG components (SiC and GaN) increases the power converter mass density. However, fast switching of WBG components (tens of kV/µs) induces voltage transient overshoots due to parasitic coupling within the inverter. In addition, propagation and reflection phenomena along the harness, even for small lengths, cause voltage overshoots across the loads. Such overvoltage in an electromechanical chain (association of inverter, harness and motor) supplied by the new HVDC 540V aeronautical network could be fatal for the Electrical Insulation System (EIS). This paper proposes an accurate and fast model to predict overvoltage along a harness; it allows to analyze the impact of SiC inverter output voltage waveforms.

Item Type:Conference or Workshop Item (Paper)
HAL Id:hal-01933414
Audience (conference):International conference without published proceedings
Uncontrolled Keywords:
Institution:French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE)
Université de Toulouse > Institut National Polytechnique de Toulouse - INPT (FRANCE)
Université de Toulouse > Université Toulouse III - Paul Sabatier - UPS (FRANCE)
Other partners > IRT Saint Exupéry - Institut de Recherche Technologique (FRANCE)
Laboratory name:
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Deposited By: Hubert PIQUET
Deposited On:23 Nov 2018 15:46

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