Two Phase Dual-Stator Axial-Flux PM BLDC Motor With Ironless Rotor Using Only-Pull Drive Technique
- Authors
- Yazdan, Tanveer; Atiq, Shahid; Kwon, Byung-Il; Baloch, Noman; Kwon, Jung-Woo
- Issue Date
- Jun-2019
- Publisher
- IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
- Keywords
- Dual-stator motor; finite element analysis; ironless rotor; only-pull drive technique; permanent magnet motor; torque per magnet volume; two phase motor
- Citation
- IEEE ACCESS, v.7, pp.82144 - 82153
- Indexed
- SCIE
SCOPUS
- Journal Title
- IEEE ACCESS
- Volume
- 7
- Start Page
- 82144
- End Page
- 82153
- URI
- https://scholarworks.bwise.kr/erica/handle/2021.sw.erica/4658
- DOI
- 10.1109/ACCESS.2019.2923711
- Abstract
- This paper proposes a two-phase dual-stator axial-flux permanent magnet brushless dc motor with an ironless rotor for higher torque per magnet volume using the only-pull drive technique. The advantage of the ironless rotor is that it reduces magnet volume by providing an effective flux linkage, while the only-pull drive technique, which involves only the pull process, bene fits from the use of thin magnets that do not experience the irreversible demagnetization. The axial-flux configuration of the proposed dual-stator motor was adopted because of its capability of achieving the desired trapezoidal back electromotive force that maximizes the advantages of the only-pull drive technique. The thin magnets were fixed on the ironless rotor using a non-magnetic structure, and the stator was particularly designed to implement the only-pull drive technique. The performance of the motor was analyzed in terms of torque per magnet volume using the finite element analysis and validated by the experimental results.
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