Contribution to partial discharge analysis in inverter-fed motor windings for automotive application

Loucif Benmamas (1) , Philippe Testé (1) , Guillaume Krebs (1) , Emmanuel Odic (1) , Franck Vangraefschepe (2) , Tahar Hamiti (2)

1 GeePs - Laboratoire Génie électrique et électronique de Paris
2 VeDeCom - VEhicule DEcarboné et COmmuniquant et sa Mobilité

The work presented here is part of a larger study concerning the analysis of electrical stress and degradation phenomena of electrical insulation of low voltage machines fed by Pulse Width Modulation (PWM) controlled inverter. The goal is to assess the risk of partial discharge (PD) in stator windings of rotating machines. In this objective, two complementary approaches are adopted: electrostatic simulations using Finite Element Method (FEM) in 2D approximation, and experimental measurements. The model seems to be a good tool allowing an approximation of PD occurrence in a given wire type. In the experimental part of this study, a simple and efficient method to detecting PD under PWM controlled voltage is presented.

Mots clés: Electric vehicles; Modeling; Partial Discharge; Windings

Domaines: Sciences de l'ingénieur [physics]

Loucif Benmamas, Philippe Testé, Guillaume Krebs, Emmanuel Odic, Franck Vangraefschepe, et al.. Contribution to partial discharge analysis in inverter-fed motor windings for automotive application. 2017 IEEE Electrical Insulation Conference (EIC), Jun 2017, Baltimore, United States. pp.348-351, ⟨10.1109/EIC.2017.8004701⟩. ⟨hal-02404687⟩