  In this paper, deterministic and robust design optimizations of a permanent
magnet assisted synchronous reluctance machine were performed to increase its
mean torque while reducing torque ripple. These optimizations were carried out
using a surrogate model based on 2-D finite element simulations. The results of
the robust optimizations, which considered manufacturing uncertainties, were
compared to the deterministic optimization. The robust designs have shown not
only good mean torque and torque ripple performances, but they have also shown
improved robustness against design parameters uncertainties.
