Analysis of Optimal Rotors Skew to Improve the Total Harmonic Distortion of Back Electromotive Force in MG-PMSM for Traction. - Ik-Hyun Jo; Ju Lee; Hyung-Woo Lee; Jae-Bum Lee; Jae-Hyeon Lim; Seong-Hwi Kim; Chan-Bae Park (IEEE Access, 2023)