A Versatile Analytical Method of Investigating MMF Harmonics of Armature Windings

Analytical methods are of great interest for the design and analysis AC machines. This paper proposes a new analytical method to study harmonic rotating components magneto motive force (MMF) produced by various types armature windings input currents. The can be symmetrical-phase or asymmetrical-phase, single-layer multi-layer, fractional-slot integer-slot, with arbitrary phase numbers. is expressed as concise steps closed-form equations, its validity reliability verified comparison finite element (FEA) simulations experiments. As opposed previous works, proposed establishes more comprehensive quantitative relationship among harmonics resultant MMF, arrangement windings, Practical implications this include enabling accurate prediction machine performance, well optimizing in both qualitative respects.