Abstract
This paper presents the evaluation of performance
indexes of a novel Synchronous Reluctance Motor (SynRM),
which has an axially sinusoidal rotor lamination shape. The stator
of a 5.5 kW, 4-pole, 50 Hz conventional three-phase squirrel cage
induction motor, with distributed and chorded by one slot, double
layer winding, is used for both standard and novel synchronous
reluctance motors. Due to the nature of the sinusoidal rotor
structure, the 3D Finite Element Analysis (FEA) is utilized to study
the electromagnetic parameters of interests. The SynRM with
sinusoidal rotor shape results are compared with the standard
SynRM without cut-off on the q-axis. The FEA results are
validated by means of practical measurements. From both FEA
and measured results, it is evident that the novel SynRM enhances
the performance indexes of interests such as torque density, torque
ripple factor and efficiency.