Efficient Deperming Protocols Based on the Magnetic Properties in Demagnetization Process
- Authors
- Ju, Hye Sun; Chung, Hyun Ju; Im, Sang Hyeon; Jeong, Dong Wook; Kim, Jong Wang; Lee, Hyang Beom; Park, Gwan Soo
- Issue Date
- Nov-2015
- Publisher
- IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
- Keywords
- Anhysteretic deperm; deperming; ferromagnetic material; finite-elements method (FEM); flash-D deperm; Preisach model
- Citation
- IEEE TRANSACTIONS ON MAGNETICS, v.51, no.11
- Journal Title
- IEEE TRANSACTIONS ON MAGNETICS
- Volume
- 51
- Number
- 11
- URI
- http://scholarworks.bwise.kr/ssu/handle/2018.sw.ssu/8596
- DOI
- 10.1109/TMAG.2015.2436703
- ISSN
- 0018-9464
- Abstract
- Recently developed magnetic materials have high coercive force and high squareness ratios to meet the industrial demand. In the electric and electronics industries and in defense development, a deperming procedure is needed to reduce residual magnetization to zero. But the conventional deperming has a limitation of not considering the magnetic hysteresis. To research an efficient and reliable deperming current, this paper proposes a deperming analysis process using the Preisach modeling combined with the finite-elements method, which is verified by magnetic treatment facility experiments. By analyzing the trace on the Preisach plane, flash-D deperm, which leaves a lot of trace remaining on the high-density coercive force, was found to be more effective. Therefore, a method to formulate a flash-D deperm current using Preisach modeling is proposed. Finally, it is expected to obtain the most efficient flash-D deperm current according to the magnetic hysteresis of each ferromagnetic material.
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Collections - College of Engineering > School of Electrical Engineering > 1. Journal Articles
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