employee from 01.01.1944 until now
Krasnoyarsk, Krasnoyarsk, Russian Federation
employee
Krasnoyarsk, Krasnoyarsk, Russian Federation
employee
Krasnoyarsk, Krasnoyarsk, Russian Federation
UDC 553.53
Russian Library and Bibliographic Classification 312
The paper deals with the use of electromagnets in the field of mechanical engineering, as well as the example of a rotor and stator with poles of electromagnetic coils. The possibility of redirection and shielding of electromagnetic fluxes is analyzed, and the description of electric and magnetic fields arising around any conductor with electric current, which are an integral component of almost all electrical machines, is given. It is shown that there are no natural materials that have zero magnetic permeability, that is, they do not completely pass through a magnetic field. The results of shielding of the magnetic flux created by electromagnets are considered. Rotating Machinery, Magnetic module was used for the analysis, in which formulations based on vector and scalar magnetic potentials are available, as well as a Moving Mesh tool. To shield the magnetic flux generated by electromagnets, the choice of the most effective method depends on the type of electromagnet (direct current or alternating current), its operation frequency, the intensity of the magnetic field and the requirements for shielding. One of the most effective methods is combined shielding using ferrimagnetic and conductive materials.
induction, electromagnets, machines, mechanical engineering, COMSOL
1. Jabin W, Kais A, Karvli SD. Magnetic device with continuous transmission. IEEE Transactions on Magnetics. 2011;47(10): 2815-2818.
2. Linni J, Chau KT, Gong Yu. Comparison of coaxial magnetic gearboxes with different topologies. IEEE Transactions on Magnetics. 2009;45(10):4526-4529.
3. Frank Nicholas W, Toliyat H. Analysis of a concentric planetary magnetic transmission with a reinforced stator and an internal rotor with permanent magnets. IEEE Transactions on Industry Applications. 2011;47(4):1652-1660.
4. Rasmussen PO, Torben OA, Frank TJ, Orla N. Development of high-efficiency magnetic transfer. IEEE Transactions on Industry Applications. 2005;41(3):764-770.
5. Yun L, Chengdu T, Jinggang B, Shuang Yu. Optimization of a synchronous machine with stationary magnets of 80 kW radial-pole composite structure used for electric vehicles. IEEE Transactions on Magnetics. 2011;47(10):2399-2402.
6. Jian A, Chau LN, Dong Zhang Jiang KT, Zheng Wang JZ. Magnetic gearbox. Brushless machine with external rotor and permanent magnets for wind power generation. Conference on Industrial Applications, 42nd Annual Meeting of the IAS; 2007 Sep 23-27; New Orleans, Louisiana, USA.
7. Atallah K, Rens J, Mesani S, Howe D. A new "pseudo" brushless permanent magnet machine with direct drive. IEEE Transactions on Magnetics. 2008;44(11):4349-4352.
8. Laxman Sh, Cruden A, Barry WW. Magnetic gearbox with variable speed using oppositely rotating input shafts. IEEE Transactions on Magnetics. 2011;47(2):431-438.
9. Ho SL, Nu Shuangxia, Fu VN. Analysis of transients in a brushless permanent magnet machine embedded in a magnetic gearbox using the finite element method taking into account magnetic field motion. IEEE Transactions on Magnetics. 2010;46(6):2074-2077.
10. Atallah K, Calverley SD, Howe D Design, analysis and implementation of high-performance magnetic transmission. IEE Proc. Electr. Power Appl. 2004;151(2):135-143.
