Analytical Method for Magnetic Field of Eccentric Magnetic Harmonic Gear

IEEE Access

Libing Jing¹  Jun Gong¹  Tong Ben¹ 

[1]College of Electrical Engineering and New Energy, China Three Gorges University, Yichang, China

关键词: Eccentric magnetic harmonic gear;    analytical method;    magnetic field;    electromagnetic torque;    FEM;   

DOI  :  10.1109/ACCESS.2020.2974777

来源: DOAJ

【 摘 要 】

Eccentric magnetic harmonic gears (EMHG) can achieve high speed ratio transmission and large torque output by modulating the air gap length between permanent magnets (PM). The analytical method is based on the boundary perturbation method. The vector magnetic potential perturbation equation in the air gap region is established, and the general solution is obtained using the boundary conditions. According to the superposition principle, the air gap flux density of stator and rotor PMs acting alone is synthesized, and the electromagnetic torque and unbalanced magnetic pull are calculated. Last, we compare magnetic field distributions, electromagnetic torque and unbalanced magnetic pull computed by the analytical method with those obtained from finite-element method (FEM).

【 授权许可】

Unknown