Demagnetization analysis of outer-rotor-type BLDC motors considering permanent magnet overhang structure

被引：0

作者：

Kim, Tae-Seong ^{[1
]}

Shin, Hyo-Seob ^{[1
]}

Yang, Jun-Won ^{[1
]}

Kim, Yong-Joo ^{[2
]}

Shin, Kyung-Hun ^{[3
]}

Choi, Jang-Young ^{[1
]}

机构：

[1] Chungnam Natl Univ, Dept Elect Engn, 99 Daehak Ro, Daejeon 34134, South Korea

[2] Chungnam Natl Univ, Dept Biosyst Machinery Engn, 99 Daehak Ro, Daejeon 34134, South Korea

[3] Changwon Natl Univ, Dept Elect Engn, Chang Won 51140, South Korea

来源：

AIP ADVANCES | 2024年 / 14卷 / 02期

基金：

新加坡国家研究基金会;

关键词：

3D modeling - AC motors - Brushless DC motors - Demagnetization - Rare earths;

D O I：

10.1063/9.0000732

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

This paper presents an analysis of demagnetization of an outer rotor type brushless DC (BLDC) motor with a permanent magnet (PM) overhang structure. The proposed model converts the operating points of PM to consider such a three-dimensional (3D) structure in two dimensions (2D). In addition, the rotor yoke thickness of the proposed model is increased to consider the housing rotor. Ferrite PMs require demagnetization analysis owing to their decreasing coercivity at lower temperatures compared with rare-earth PMs. Hence, demagnetization analysis is conducted using a proposed model while considering, the PM overhang structure. The demagnetization analysis results are compared with the results of proposed model and 3D FEA analyses.

引用

页数：5

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