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논문 기본 정보

저자정보
(계명대학교) (계명대학교) (계명대학교)
저널정보
대한전기학회 전기학회논문지 전기학회논문지 제73권 제10호
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    초록·키워드

    With the increasing demand for electric vehicles, the use of Permanent Magnet Synchronous Motors (PMSM) which have characteristics such as high efficiency and high energy density has been expanding. For mass production of PMSM, the Post Assembly Magnetization process, where unmagnetized permanent magnets are inserted into the rotor and then magnetized using a magnetization yoke, is used widely. However, for products with a smaller outer diameter rotor than the magnetizer`s inner diameter that does not fit the dedicated magnetization yoke for recycling the magnetizing system, applying the same magnetic field can show results less magnetizing ratio causing increasing leakage flux with the long air gap. Therefore, this paper proposes optimizing the temperature of permanent magnets by heating them to reduce magnet coercivity, achieving the same magnetization performance with the existing magnetizer without increasing the capacity of the magnetization power supply or redesigning the magnetization yoke. This research is expected to enable the use of a universal magnetizer for rotors of different sizes, thereby reducing production costs. The analysis will be conducted using ANSYS Electronics Desktop 2019 R3.

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