Abstract
ABSTRACTIn recent years, a demand for smaller traction motors with higher power has arisen. This study focused on high‐speed rotation for miniaturization and developed a prototype motor using Nd‐based bonded magnets. It had a maximum rotational speed of 34,000 rpm, which is twice that of existing 50 kW‐class motors. The motor achieved the desired performance in the test in combination with a reducer. As a result, the weight of the prototype motor was reduced by 54%, and a power density of 6.7 kW/kg was achieved.
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