Topology Optimization of an Interior PM Motor for Applying to Refrigerant Compressor

In order to overcome the limitations of traditional dimensional design methods for motor product design, this paper uses a novel topology optimization strategy (TOS) based on normalized Gaussian network (NGnet) to re-optimize a mass-produced refrigerant compressor motor while considering both output torque and torque ripples. In order to enable the obtained structure can be processed, a method of topological separation suppression is adopted. The transient performance of the machine is analyzed by 2D FEA. The results show that the performance of the re-optimized model is significantly better than before. The improved TOS has a good application prospect in motor product design.