Parametric Study on Thermal Properties of a PMSM Motor in Cryogenic Environment Using COMSOL Multiphysics®
For the development of a Permanent Magnetic Synchronous Machine (PMSM), optimization of design variables, e.g. the size of an air gap, is performed. When applied to optical instruments in space environment, the motor has to be designed for ultra high vacuum (UHV) and cryogenic temperatures while maintaining high precision. Therefore, the temperatures generated during operation are main design drivers. The objective is to find an ideal configuration for the PMSM with respect to heat generation during operation. A design optimization methodology is 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™.
