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Axial-flux permanent magnet (PM) synchronous machines are suitable for direct drive applications. Axial-flux PM synchronous machines with fractional windings provide high power density, low torque ripple, and sinusoidal phase voltages, but suffer from high rotor losses due to stator field harmonics and slotting. This paper formulates an electromagnetic model based on the polar coordinate representation...
This paper presents a distributed slot permanent magnet synchronous machine (PMSM). It's a machine characterized by a distributed windings stator and a surface mounted PM rotor. First, a basic PMSM called “classical” has been studied. Then, we have developed a new method to find the others machines with the same winding distribution on stator but with different rotor pole number so that we have obtained...
In this article we present a methodology for calculating the electromagnetic torque of a synchronous machine (SM) using the concept of the real density of current based on the generalized distribution function. To validate the model, we consider a three-phase SM with a location of the conductors in the slots in a special way ldquowinding-step shortcutrdquo to the stator windings and a direct current...
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