The electric machine with two-sided stator, axial magnetic flux, permanent magnets and multilayered printing windings

Abstract

The use of printed windings in electric machines with permanent magnets and axial magnetic flux allows to reduce their axial size and significantly increase the current density in the windings due to the small thickness and correspondingly large width of the conductors of the printed winding and, as a result, their better cooling. The dependences of voltage and power in the generator mode are determined when connecting the windings through the diode bridge to the load. Investigations of the effect of stator teeth on the magnitude of the electromagnetic torque are made. It was found that the presence of teeth on the stator allows you to increase the electromagnetic torque of the electric machine by about 26% compared with the version of the magnetic system without teeth. The effect of the displacement of one stator relative to another on the magnitude of the tooth torque has been studied. A prototype of an electric machine with a double-sided stator, multilayer printed windings and permanent cylindrical magnets was manufactured. The calculated model of the generator adequately describes the physical model. The discrepancy between the calculated and experimental values does not exceed ε = 4%. The characteristics of the studied generators were calculated by the software packages Simcenter MagNet and Simcenter MotorSolve.