인문학
사회과학
자연과학
공학
의약학
농수해양학
예술체육학
복합학
DBpia AI
AI 에이전트
AI 아이디어
AI 리더
AI 뷰어
Citeasy
크롬 서지관리 다운로드
지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
피인용 0
초록·키워드
The number of devices using motors is increasing worldwide, and interest in permanent magnets, an essential component of permanent magnet synchronous motors with wide operating areas and high-power density, is growing rapidly. In particular, rare-earth permanent magnets with high residual induction are widely employed in different applications, including automotive drive motors and electric power steering (EPS) motors. However, because rare earth elements are limited to specific regions, problems such as supply and demand imbalances and price spikes could occur. To address this issue, various types of motors that do not require rare earth elements are currently being developed. In particular, research is being conducted on IPMSM that do not use rare earth elements but instead use ferrite permanent magnets. However, in the case of ferrite permanent magnets, the residual induction is about 1/3 of that of rare earth permanent magnets, so the rotor shape tends to become intricated to obtain high air gap magnetic flux density. Therefore, when magnetization is performed after post assembly to increase productivity, there is a problem in that the magnetization is not completely changed in local areas. In this paper, we reviewed methods for magnetizing permanent magnets and uneven magnetization that can occur in rotors of various shapes.
본문·목차
인공지능 문자 인식 모델을 통해 추출된 텍스트로, 일부 오타나 오류가 포함될 수 있으나 지속적으로 개선 중입니다.
오류를 발견하셨다면 해당 부분을 드래그한 후 ' 를 통해 신고해주세요.
오류를 발견하셨다면 해당 부분을 드래그한 후 ' 를 통해 신고해주세요.
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