Abstract
Due to its unique advantages of small size, high power density, and high efficiency, high-speed asynchronous motor (HSAM) has been widely used in aerospace, high-speed air compressor, and other advanced manufacturing equipment. Based on a developed finite element model validated by a prototype motor testing platform, the influence of stators made of different magnetic materials on the efficiency of the HSAM with a rated speed of 7500 rpm has been systematically investigated. Hereinto, the magnetic materials are silicon steel, Fe-based amorphous alloy, and SMC. Compared with silicon steel, the iron loss of HSAM can be significantly reduced by 91.1% using the stator made of Fe-based amorphous alloy in the frequency range of 0-800 Hz, while the SMC motor exhibits an advantage in lower loss when the frequency over 157.28Hz.
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