Birkaç kutup çifti kombinasyonunda CMG ve RPMG'nin dişli faktörünün araştırılması

Abstract

Magnetic gear (MG) üzerindeki tasarım, uygulamaya özel dişli oranının belirlenmesini içerir. Dişli oranı, iç rotorun, dış rotorun ve kutup parçasının kutup sayısı ile elde edilebilir. Bu araştırmada, concentric magnetic gear (CMG) ve dönen rotating pole piece magnetic gear (RPMG) içindeki birkaç kutup çifti kombinasyonunun dişli torku incelenmiştir. Dişli oranı denklemleri başlangıçta hem CMG hem de RPMG için türetilmiştir. Bu denklemlere dayanarak, dört set kutup çifti kombinasyonu belirlendi. Cogging faktörü her kombinasyonda hesaplandı. Dişli torkuna yönelik dişli faktörünün önemini belirlemek için, makineler 2D sonlu elemanlar yazılımında simüle edildi. Sonuç, alt kutup çifti kombinasyonunun daha düşük dişli torku ürettiğini ortaya çıkardı. Simülasyon sonucu ayrıca, vuruntu faktöründeki artış hızının, simülasyondaki vuruntu torku miktarı ile doğrudan ilişkili olmadığını göstermektedir. CMG ve RPMG'de vuruntu faktörünün vuruntu torku şiddetine erişmek için uygun bir araç olmadığı sonucuna varılmıştır.

Keywords

• Makine tasarımı
• Manyetik dişli
• Cogging torku
• Sonlu eleman

Investigation of the cogging factor of CMG and RPMG in several pole pair combinations

Abstract

The design on magnetic gear (MG) involves determining the gear ratio specific to its application. The gear ratio can be determined by the pole number of the inner rotor, outer rotor and the pole piece. In this research, the cogging torque of several pole pair combinations in concentric magnetic gear (CMG) and rotating pole piece magnetic gear (RPMG) were investigated. The gear ratio equations were initially derived for both CMG and RPMG. Based on these equations, four sets of pole pair combinations were determined. The cogging factor was calculated in each combination. To determine the cogging factor significance towards the cogging torque, the magnetic gears were simulated in 2D finite element software. The result revealed that the lower pole pair combination generates lower cogging torque than the higher pole pair combination. The simulation result also shows that the rate of increase in cogging factor did not correlate directly to the cogging torque in the simulation. It is concluded that the cogging factor is not a suitable tool to access the cogging torque level in CMG and RPMG.

Keywords

• Machine design
• Magnetic gear
• Cogging torque
• Finite element

References

1. [1] Faysal A. Al, Haris S.M., Development of Magnetic Gears : A Review, J. Kejuruter., 2019, 1:49–56
2. [2] Mcgilton B., Mueller P.M., Mcdonald A., Review of Magnetic Gear Technologies and their Applications in Marine Energy, In: IET International Conference on Renewable Power Generation (RPG), London, 2016, 1–6
3. [3] Aiso K., Akatsu K., Aoyama Y., Reluctance magnetic gear and flux switching magnetic gear for high speed motor system, In: IEEE Energy Conversion Congress and Exposition, ECCE 2017, Cincinnati, 2017, 2445–2452
4. [4] Huang C.C., Tsai M.C., Dorrell D.G., Lin B.J., Development of a magnetic planetary gearbox, IEEE Trans. Magn., 2008, 44:403–412
5. [5] Perez-Diaz J.L., Diez-Jimenez E., Alvarez-Valenzuela M.A., Sanchez-García-Casarrubios J., Cristache C., Valiente-Blanco I., Magnetic Gearboxes for Aerospace Applications, In: Aerospace Mechanism Symposium, 2014, 365–374
6. [6] Rasmussen P.O., Andersen T.O., Jørgensen F.T., Nielsen O., Development of a High-Performance Magnetic Gear, IEEE Trans. Ind. Appl., 2005, 41:764–770
7. [7] Frank N.W., Toliyat H.A., Gearing Ratios of a Magnetic Gear for Wind Turbines, In: IEEE International Electric Machines and Drives Conference, IEEE, Miami, 2009, 1224–1230
8. [8] Gerber S., Evaluation and design aspects of magnetic gears and magnetically geared electrical machines, Stellenbosch University: Ph.D. Thesis, 2015

9. [9] Li X., Cheng M., Wang Y., Analysis, design and experimental verification of a coaxial magnetic gear using stationary permanent-magnet ring, IET Electr. Power Appl., 2018, 12:231–238
10. [10] Al-qarni A., Wu F., High-Torque-Density Low-Cost Magnetic Gear Utilizing Hybrid Magnets and Advanced Materials, In: IEEE International Electric Machines & Drives Conference (IEMDC), IEEE, 2019, 225–232
11. [11] Benarous M., Trezieres M., Design of a cost-effective magnetic gearbox for an aerospace application, J. Eng., 2019, 2019:4081–4084
12. [12] M.F.M.A, Halim. E, Sulaiman R.N.F.K.R O., Gear efficiency estimation method through finite element and curve fitting, Int. J. Appl. Electromagn. Mech., 2021, 1:425–443
13. [13] M.F.M.A. H., Sulaiman E., Aziz R., Othman R.N.F.K.R., A.A. R., Torque Density Design Optimization of Rotating Pole Piece Concentric Magnetic Gear, Arab. J. Sci. Eng., 2021, 47: