Performance Verification of Permanent Magnet Synchronous Motor Based on Finite Element Method
In response to the diverse requirements of electric vehicle motors,such as magnetic leakage,energy conversion and overload protection,an independently designed permanent mag-net synchronous drive motor is proposed.This study focuses on multiple dimensions,including motor modeling,grid stratification,no-load analysis,and finite element analysis under different conditions.A comprehensive permanent magnet synchronous motor model is established using the Maxwell 2D simulation software.Furthermore,the electromagnetic field characteristics of the motor,including stator teeth flux density,yoke flux density,rotor pole bridge flux density,and magnetic field leakage,are analyzed under no-load conditions to ensure the accuracy and relia-bility of the finite element model of the permanent magnet synchronous motor.Onthis founda-tion,the characteristics of the drive motor under rated load and overload conditions are analyzed.The results indicate that under rated load,the stator teeth magnetic induction intensity is approx-imately 1.85 T,the yoke is approximately 1.44 T,and they have not reached saturation,with an average output torque of about 66.22 N·m and a torque peak of about 72.65 N·m,showing a relatively uniform magnetic field distribution.Under overload conditions,both stator teeth and yoke magnetic densities are saturated,with an overload current far exceeding the rated current by more than 2.5 times,resulting in an average output torque of approximately 178.25 N·m,dem-onstrating outstanding overload capability of the motor.Therefore,it meets the design require-ments.
permanent magnet synchronous motorfinite element methodcharacteristic anal-ysis
万方数据
维普
