An electric machine includes a stator carrying two sets of multiphase windings. The sets are electrically isolated from each other and have an angular space displacement of A° electric corresponding to a torque ripple of harmonic order N. Responsive to current flow through the sets with a phase shift of A° electric, N±1 harmonic orders of resulting stator magnetic fields cancel to preclude formation of the torque ripple of harmonic order N.
Electric Machine With Stator Windings For Reduced Torque Ripple
23.08.2018
Patent
Elektronische Ressource
Englisch
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