| 摘要 |
An electromagnetic machine, comprising: a first stator winding having a first number of pole pairs; a second stator winding having a second number of pole pairs which is different to the first number of pole pairs; and, a modulator having a plurality of pole pieces arranged relative to the first and second stator windings so as to modulate the electromagnetic fields produced by the first and second stator windings, thereby matching harmonic spectra of the first and second stator windings. |
