Loss and Efficiency Analysis of the Brushless Direct Current Motor with an Amorphous Stator Core

Due to the demand for energy conservation, the loss and efficiency of a brushless direct current (BLDC) motor is investigated. In order to improve the motor efficiency, we make efforts to reduce the loss by replacing the silicon steel (SS) stator with amorphous metal (AM) stator and improving the motor design. The motor performance is analyzed by simulations and experiments, and the processing influence on loss of AM material is also considered. It shows that the performance of the AM core deteriorates due to the stress introduced during the core processing, but the utilization of AM material and the optimization design can improve the motor efficiency by 4.76%. In addition, the weight of the motor is reduced by 11.36% than that of the initial motor. This research can provide a reference for the initial design and performance evaluation of AM BLDC motors.

Automated summary

In order to conserve energy, the loss and efficiency of a brushless direct current (BLDC) motor were investigated. By replacing the silicon steel stator with an amorphous metal stator and improving the motor design, the motor efficiency was improved by 4.76% and the weight was reduced by 11.36%.