This paper deals with comparative investigation on permanent magnet synchronous machines (PMSMs) with
identical stator structure based on electromagnetic field analysis. By considering their rotor types with rareearth
magnets, the influence of space vector pulse width modulation inverter on machine performance is investigated
based on the predicted phase current. As analysis models, a surface-mounted PMSM (SPMSM) with
parallel magnetization, a SPMSM with Halbach magnetization, and an interior PMSM (IPMSM) are employed
for their comparison. For their effective investigation, machines are designed to have identical equivalent circuit
parameters, such as resistance and induced voltage in no-load condition. Based on the dynamic modeling of
the SVPWM inverter, the phase current is predicted, and their output characteristic, power losses and radial
force density are comparatively investigated by electromagnetic field analysis. In addition, with a manufactured
machine, the validity of this paper is demonstrated as well.