Study on the Influence of Can Sleeve Material on the Electromagnetic Field and Temperature Field of Canned Permanent Magnet Synchronous Motor
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.
can sleeve materialelectromagnetic fieldtemperature fieldmagneto-thermal bi-directional coupling