Two Phase Dual-Stator Axial-Flux PM BLDC Motor With Ironless Rotor Using Only-Pull Drive Technique

IEEE Access

Byung-Il Kwon¹  Shahid Atiq²  Tanveer Yazdan³  Noman Baloch⁴  Jung-Woo Kwon⁴ 

[1] Information Technology, Rahim Yar Khan, Pakistan;Electrical Engineering Department, Khwaja Fareed University of Engineering &x0026;Electrical Engineering Department, The University of Lahore, Lahore, Pakistan;Electronic Systems Engineering Department, Hanyang University, Ansan, South Korea;

关键词: Dual-stator motor;    finite element analysis;    ironless rotor;    only-pull drive technique;    permanent magnet motor;    torque per magnet volume;   

DOI  :  10.1109/ACCESS.2019.2923711

来源: DOAJ

【 摘 要 】

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, benefits 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.

【 授权许可】

Unknown