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A rotor design of a BLDC motor used for reciprocating compressor considering demagnetization
- Authors
- You, Yong-Min; Kim, Dae-Kyong; Kwon, Byung-Il
- Issue Date
- Oct-2010
- Publisher
- IOS PRESS
- Keywords
- Demagnetization; BLDC; Reciprocating Compressor; ferrite magnet; FEM
- Citation
- INTERNATIONAL JOURNAL OF APPLIED ELECTROMAGNETICS AND MECHANICS, v.33, no.1-2, pp.689 - 695
- Indexed
- SCIE
SCOPUS
- Volume
- 33
- Number
- 1-2
- Start Page
- 689
- End Page
- 695
- ISSN
- 1383-5416
- Abstract
- This paper presents the design of a reliable rotor shape of a BLDC motor used for reciprocating compressor considering demagnetization. Three types of rotor shape are proposed for BLDC motor and a proper rotor shape is selected by characteristic analysis using the 2D finite element method (FEM). To verify the accuracy of the analysis results, a prototype was built and tested. In order to design a reliable rotor shape against the demagnetization of the ferrite magnet, the demagnetization analysis is performed according to variation of design variables of the ferrite magnet using the 2D FEM. As a result, the BLDC motor with the developed rotor shape showed good performance to resist partial demagnetization.
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