کنفرانس بین المللی ماشین و محرکه های الکتریکی

صفحه اصلی / The 5th International Conference on Electrical Machines and Drives

Asymmetric Rotor Hybrid Interior Permanent Magnet Coaxial Magnetic Gear for Torque Density and PM Utilization Ratio Improvement

نویسندگان :

Mojtaba Malakooti Khaledi¹ Seyed Ahmadreza Afsari Kashani²

1- University of Kashan 2- University of Kashan

کلمات کلیدی :

Magnetic gear،ferrite،rare-earth magnet،hybrid PM،torque density،cogging torque

چکیده :

Power is transferred between various rotational speeds and torque levels via magnetic gears (MGs), which operate similarly to mechanical gears. On the other hand, its contactless functioning has built-in benefits, including decreased mechanical wear, less maintenance, and increased dependability. Notwithstanding these advantages, there remain obstacles to the broad use of MGs, mainly because of the unpredictable pricing and unstable supply chain of rare-earth permanent magnets (PMs). In this paper, a unique less-rare-earth MG design is proposed to reduce dependence on these key components. Along with employing two different kinds of magnetic materials to lower the structure's overall cost, the suggested structure also uses an asymmetrical magnet arrangement in the inner rotor to enhance torque density and decrease cogging torque. This paper systematically investigates the output performance of the optimized design obtained by optimization with a genetic optimization algorithm and ANSYS Maxwell 2021-R1 software through 2D finite element analysis. The key optimization parameters include torque density, cogging torque, and magnetic material volume, which ensure the balance between material cost reduction and operational efficiency.