“…Establish transient model with finite element method (FEM) to calculate the loss of BSRM and then import the loss as heat source into thermal field to analyze the temperature distribution of the motor [16][17][18]. There are more and more researches on the control strategy, parameter design, and vibration noise reduction of BSRM [19][20][21], but little research on the change of body heat when the motor is running. Scholars have achieved certain results in the calculation of the motor temperature field; however, the research for hybrid excitation and complex structure motor is rare.…”