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Axial flux permanent magnet (AFPM) motors might be an efficient traction solution for hybrid and full electric vehicles. This technology makes the use of soft magnetic composites (SMC) attractive for both manufacturing and performance reasons. Eddy currents in the iron can provide a natural transient damper and/or flux weakener and the iron losses might be compensated by the high torque density of...
Multi-phase synchronous machines are more and more used in specific applications where high power density, low bus voltage, wide speed range and fault-tolerant capabilities are required. Due to the high number of degrees of freedom, multi-phase machines are difficult to optimally operate in flux-weakening zones. This paper proposes a technique to numerically compute optimal current references that...
In order to get a low cost mild hybrid system, a global objective is to keep the actual thermal engine architecture as in Figure 1. As consequence, the current clawpole synchronous automotive generator must be replaced by a new more powerful electrical machine but with the same large speed range [0–18000 rpm]. In the project, a power of 15 kW and a DC bus voltage of 60V have been chosen to provide...
This paper presents the comparison of three permanent magnet synchronous machines (PMSMs) with concentrated flux, the first two machines with fractional slot windings and the other with distributed windings considered as the reference machine. Therefore, the advantages of PMSMs with fractional slot windings were showed. Then, the computation method of the average copper losses, the average iron losses...
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