Concept, Feasibility of Cylindrical Bar Winding for Low Voltage Permanent Magnet Synchronous Motor

Mourad Aitakkache, Philippe Enrici, Daniel Matt, Nadhem Boubaker and Lorenzo Piscini
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Mourad Aitakkache: Institut d’Electroniques et des Systèmes (IES)-CNRS UMR 5214, Université de Montpellier, 34095 Montpellier, France
Philippe Enrici: Institut d’Electroniques et des Systèmes (IES)-CNRS UMR 5214, Université de Montpellier, 34095 Montpellier, France
Daniel Matt: Institut d’Electroniques et des Systèmes (IES)-CNRS UMR 5214, Université de Montpellier, 34095 Montpellier, France
Nadhem Boubaker: Safran Electrical & Power, Pitstone LU7 9GT, UK
Lorenzo Piscini: Valeo System Electrical, 94046 Creteil, France

Energies, 2022, vol. 15, issue 4, 1-26

Abstract: In this paper, we present the use of a solid bar winding for a permanent magnet synchronous motor dedicated to the electric drive of a full electric boat. For the winding, we chose to use cylindrical bars for the electric vehicle motorizations of a power lower than 10 kW. The choice of a 60 VDC low-voltage power distribution requires resorting to a solid bar winding with one bar per slot (single turn). Hence, the solid conductors dissipate additional copper losses (higher AC resistance). An analysis of these additional copper losses was carried out to accurately assess the effective AC resistance of the winding and, hence, the efficiency of the electric motor. A prototype for a POD propulsion was designed, built and tested. The characteristics of its electric motor were presented. The feasibility this type of cylindrical bar winding has been proven. A study on the optimization of the slot has demonstrated the performance of this type of winding.

Keywords: additional copper losses; electric boat; permanent magnet; synchronous machine; very low voltage; solid bar winding (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2022
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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