Partial discharge risk under space charges generation and transport effects

Mallys Elliazar Banda (1) , David Malec (2) , Jean-Pascal Cambronne (2)

1 LAPLACE - LAboratoire PLasma et Conversion d'Energie
2 LAPLACE-MDCE - Matériaux Diélectriques dans la Conversion d’Energie

Based on a topological model from power busbars designed for hybrid aircraft propulsion, simulations of partial discharges risks induced by space charge accumulation in PTFE has been developed under Comsol Multiphysics® (CM) through a bipolar model of charge generation and transport. The model was implemented by using the General Form PDE of Mathematics modules. The simulation results were focused on the risk of partial discharges appearance in air surrounding the busbars. Both space charge generation and transport mechanisms within PTFE busbar solid insulators, show a significant impact of the nature, the quantity and the space-time distribution of accumulated charges on partial discharges inception in air.

Mots clés: Partial discharges; Busbars; Space charge; PTFE; Hybrid propulsion

Domaines: Matériaux; Energie électrique; Electronique; Physique mathématique [math-ph]

Mallys Elliazar Banda, David Malec, Jean-Pascal Cambronne. Partial discharge risk under space charges generation and transport effects. Comsol International Conference, Lausanne 2018, Oct 2018, Lausanne, France. ⟨hal-02182467⟩