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The study aims to explore the effects of increased voltage supply on partial discharges in different electric drive architectures.

February 5, 2026

Computational study of partial discharge events in electric drives with segmented power supply

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The study aims to explore the effects of increased voltage supply on partial discharges in different electric drive architectures.
Investigated two architectures: single inverter with conventional motor and multi-Three-Phase machine with sub-inverter.
Developed a 54-turns coil as an equivalent circuit to analyse discharge effects.
Determined lumped parameters through frequency-dependent COMSOL simulations.
Conducted MATLAB/SIMULINK simulations to assess voltage potential distribution.
Used COMSOL to compute electric fields and maximum voltage supply without breakdown.
Identified an increase in partial discharges correlating with higher voltage supplies.
The maximum voltage supply without breakdown was lower in the CTAF-powered system compared to the conventional system.
Concluded that the CTAF approach offers improved safety against breakdown risks in electric drives.

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Investigates partial discharge impacts on electric drives, revealing the effectiveness of segmented power supply systems.

Lanciotti et al. (2025) studied this question.

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