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The paper deals with problems of cylindrical rotor synchronous machine excitation winding, its design and analyses of resulting excitation magnetic field. Furthermore it includes possibilities of suppression of harmonic components using suitable stator winding topology.
A lumped parameter model describing the electromagnetic behavior of Transverse Flux Machines is proposed. Varying magnetic conductivities along the rotor perimeter representing the effective air gap are used to determine the harmonic effects on current dynamics and torque generation. To reduce torque ripples, a control scheme is presented.
This contribution investigates the influence of magnetic saturation on the sensorless control of IPM synchronous motors. An extended analytical motor model is introduced that covers magnetic anisotropies and describes the fundamental wave as well as the harmonic characteristics. Simulation results are compared to actual measurements on a servo drive.
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