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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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.