屏蔽套材料对屏蔽式永磁同步电机电磁场和温度场的影响研究OACSTPCD

Aiming at the problem of low computational accuracy when analyzing the electromagnetic field and temperature field of canned permanent magnet synchronous motor by the directional coupling method,a magneto-thermal bidirectional coupling method is proposed.Firstly,a magneto-thermal coupling computational model is established.Secondly,the influence of the can sleeve material on the motor performance is analyzed by the magneto-thermal bi-directional coupling method,and the calculation results are compared with the directional coupling method.Finally,a three-dimensional model of the motor is established and the electromagnetic field and three-dimensional temperature field are analyzed using finite element software.The results show that the proposed magneto-thermal bi-directional coupling calculation method can effectively improve the calculation accuracy of electromagnetic field and temperature field.In addition,the can sleeve using non-conductive non-magnetic materials can effectively improve the efficiency of the canned permanent magnet synchronous motor and reduce the temperature rise of the motor.The proposed method not only provides a reference for the design of canned permanent magnet synchronous motor,but also is of great significance to ensure the efficient and reliable operation of the motor.