Parametric Study on Thermal Properties of a PMSM Motor in Cryogenic Environment Using COMSOL Multiphysics®

We are developing a Permanent Magnetic Synchronous Machine (PMSM) for being used inside a cryostat. This environment is characterized by ultra high vacuum (UHV) and operating temperatures down to 80 K. In order to optimize our current design, we have been performing a design study about the key parameters of the machine. One of the challenges that we were confronted with is the analysis of thermal behavior during operation of the motor. Its power consumption will generate heat and thermal gradients within the motor might change the performance. Therefore, the temperature profile inside the machine generated during operation has been analyzed and the results are shown in this paper. The objective is to find an ideal configuration for the PMSM with respect to heat generation and cooling during operation. A design optimization methodology has been developed using the COMSOL Multiphysics® Joule Heating physics. For a parametric study, electromagnetic properties are calculated in MATLAB® and implemented into the model using the respective LiveLink™.      «

We are developing a Permanent Magnetic Synchronous Machine (PMSM) for being used inside a cryostat. This environment is characterized by ultra high vacuum (UHV) and operating temperatures down to 80 K. In order to optimize our current design, we have been performing a design study about the key parameters of the machine. One of the challenges that we were confronted with is the analysis of thermal behavior during operation of the motor. Its power consumption will generate heat...     »