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Comparison of Loss Characteristics of Coaxial Magnetic Gear According to Three Types

Authors
이정인신경훈방태경최장영김경환홍기용
Issue Date
12월-2018
Publisher
International Journal of Engineering & Technology
Keywords
Coaxial magnetic gear; Consequent pole magnetic gear; Reluctance magnetic gear; Two-dimentional finite lelement analysis; core loss
Citation
International Journal of Engineering & Technology, v.7, no.4.39, pp 18 - 21
Pages
4
Journal Title
International Journal of Engineering & Technology
Volume
7
Number
4.39
Start Page
18
End Page
21
URI
https://www.kriso.re.kr/sciwatch/handle/2021.sw.kriso/9257
DOI
10.14419/ijet.v7i4.39.23691
Abstract
Background/Objectives: Recently, there has been a problem of instability in rare earth prices worldwide. Due to these problems, various structures are being studied to minimize the use of permanent magnets. Methods/Statistical analysis: In this paper, we analyze the loss characteristics of three different types of coaxial magnetic gears using two - dimensional finite element analysis. Findings: In this paper, three types of coaxial magnetic gears have been analyzed by using the two - dimensional finite element analysis. The shapes used for the analysis are three types: Surface mounted coaxial magnetic gear (SMCMG), Consequent pole coaxial magnetic gear (CPCMG) and Reluctance coaxial magnetic gear (RCMG).The three types of gear ratios are all seven. For CPCMG and RCMG, the maximum torque is reduced as compared to SMCMG as the permanent magnet usage decreases. However, in case of loss, CPCMG is advantageous for PMloss and RCMG is for coreloss. The efficiency of SMCMG is advantageous, although the three types do not have much difference. Improvements/Applications: Through the two - dimensional finite element analysis, the results of analysis of the losses occurring in three types of magnetic gears were obtained.
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