Skewed-Stator V-shaped Interior Permanent Magnet Motor: No-Load Characteristic Analysis

This research paper investigates the stator skewing effect on the no-load characteristics of the V-shaped interior permanent magnet (IPM) motor for hybrid electric vehicle (HEV) traction application. A multi-sliced 2D finite element analysis (FEA) method is adopted to analyze the skewed-stator V-shaped IPM motor, at no-load conditions without stator current excitation. The multi-sliced 2D FEA consumes less amount of the computational time compared to a traditional 3D FEA for the skewed-stator V-shaped IPM motor. To validate the computational accuracy of the multi-sliced 2D FEA method, the cogging torque of the non-skewed V-shaped IPM motor is compared with the 2D FEA. The no-load characteristics, such as cogging torque and back EMF of the V-shaped IPM motor with and without stator skewing are computed using the multi-sliced 2D FEA, and the comparative characteristic analysis is carried out.