Development of High Power-Density Motors for Electric Axles Using Nd-Based Bonded Magnets

IF 0.4 4区工程技术 Q4 ENGINEERING, ELECTRICAL & ELECTRONIC

Electrical Engineering in Japan Pub Date : 2025-01-07 DOI:10.1002/eej.23494

Kenya Naruse, Choongsik Kim, Masahiro Kayano, Aki Watarai, Hironari Mitarai, Kenji Nakamura

引用次数: 0

Abstract

In 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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钕基粘结磁体电轴用高功率密度电机的研制

近年来，出现了对体积更小、功率更高的牵引电机的需求。本研究的重点是高速旋转的小型化，并开发了一个使用钕基粘结磁体的原型电机。它的最大转速为34,000 rpm，是现有50 kw级电机的两倍。在与减速器组合的试验中，电机达到了预期的性能。因此，原型电机的重量减轻了54%，功率密度达到6.7 kW/kg。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Electrical Engineering in Japan 工程技术-工程：电子与电气

CiteScore

0.80

自引率

0.00%

发文量

审稿时长

4-8 weeks

期刊介绍： Electrical Engineering in Japan (EEJ) is an official journal of the Institute of Electrical Engineers of Japan (IEEJ). This authoritative journal is a translation of the Transactions of the Institute of Electrical Engineers of Japan. It publishes 16 issues a year on original research findings in Electrical Engineering with special focus on the science, technology and applications of electric power, such as power generation, transmission and conversion, electric railways (including magnetic levitation devices), motors, switching, power economics.