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Optimal Design of Low-Cost Coaxial Magnetic Gear with Hybrid Permanent Magnets | ||
| AUT Journal of Electrical Engineering | ||
| مقاله 7، دوره 57، شماره 3، دی 2025، صفحه 499-514 اصل مقاله (1.69 M) | ||
| نوع مقاله: Research Article | ||
| شناسه دیجیتال (DOI): 10.22060/eej.2025.24045.5648 | ||
| نویسندگان | ||
| Seyed Ahamdreza Afsari Kashani* ؛ Mostafa Madanchi Zaj؛ Ali Asadollahi؛ Mojtaba Malakooti Khaledi | ||
| Faculty of Electrical and Computer Engineering, University of Kashan, Kashan, Iran | ||
| چکیده | ||
| Magnetic gears transfer power similarly to mechanical gears between exclusive speeds and torques; however, magnetic gears’ contactless structures offer inherent performance advantages over mechanical gears. Nevertheless, the cost of fluctuation and the restricted availability of rare-earth permanent magnets have hindered the broader adoption of magnetic gear technology. To minimize the consumption of the rare-earth permanent magnet material, this paper proposes a less-rare-earth magnetic gear layout wherein the inner rotor uses spoke-type magnet slots filled with each rare-earth and ferrite permanent magnets to form a hybrid permanent magnet excitation. This rotor topology employs an additional asymmetric flux barrier in each pole for torque density enhancement and cogging torque suppression. For a more comprehensive study, the permanent magnet’s geometry was modeled using a trapezoidal shape. The influence of permanent magnets and barriers geometry parameters on air gap flux density was analyzed. The torque performance of the less-rare-earth magnetic gear was analyzed through 2-D and 3-D finite element analysis and compared with conventional spoke-type and flat type interior permanent magnet rotors. | ||
| کلیدواژهها | ||
| Ferrite PM؛ rare-earth PM؛ hybrid magnet؛ magnetic gear؛ FEM؛ torque density؛ cogging torque | ||
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آمار تعداد مشاهده مقاله: 398 تعداد دریافت فایل اصل مقاله: 234 |
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