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Master Thesis

Adaptation du moteur électrique à la haute tension

Abstract : This project aims to adapt an electric motor used for vehicle to high voltage, where this rise in voltage level is a requirement for the improvement of the electric traction chain: battery and converter. The electric motor is little affected by this increase in voltage level, but a study of adaptation and evaluation of reliability are required. The magnetic adaptation of the high voltage motor is based on the ampere turns: keeping the same magnetomotive force between a basic motor (low voltage) and the high voltage motor, keeps the electromagnetic performance the same: therefore a power constant. On the other hand, the electrical insulation system in the motor is very impacted by this lifting in voltage level; it can increase the risk of occurrence of partial discharges between conductors, rupture and degradation of the different insulators. For electrical adaptation of the motor to the high voltage, it is necessary to use inter-phase insulating paper in the coil heads or to increase the value of the insulating layer. A use of the pin conductors is considered because they have the advantage of being manageable to manage the distances between conductors in the coil heads to avoid partial discharges. The insulation system of the notch bottom is also impacted by the increase in the voltage level which means the increase of the intensity of the electric field and which can approximate the dielectric strength of this insulator.
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Master Thesis
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Submitted on : Wednesday, October 9, 2019 - 9:34:35 AM
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  • HAL Id : dumas-02284118, version 1

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Abderrahmane Rebhaoui. Adaptation du moteur électrique à la haute tension. Energie électrique. 2019. ⟨dumas-02284118⟩

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