Multi-objective Optimization of Induction Motor with Radial Skewed Rotor

The Multi‐Objective Robust Optimization Design of Ultra‐High Efficiency Induction Machine

“…The radial skewed rotor means that the rotor slot would incline a certain angle along the rotor radial direction, and the angle would change with the slot type and size constantly. It could make the magnetic field distribution more uniform and reduce the harmonic component in the air‐gap, which is beneficial to improving the efficiency of the IM [4].…”

“…In addition, the stator energy‐saving winding [4] is adopted to further reduce the harmonic loss and improve the efficiency of IM. Compared with double laminated winding, the IM with stator energy‐saving winding would have an efficiency improvement of about 0.23%, which is shown in Table III, and it could also improve the power factor and torque performance at the same time.…”

“…In addition, a kind of stator energy‐saving winding with unequal‐turn, which is formed by changing the number of conductors in each slot, could make the magnetic flux distribution closer to the sinusoidal distribution along with the iron core. Thus, the adverse effects due to the air‐gap harmonic component could be reduced and the efficiency of the IM would be improved [3,4].…”