© The Institution of Engineering and Technology
This study presents the design of a new non-rare-earth magnetic variable gear (MVG) with 16 electrically controlled gear ratios, which incorporates both the concept of the magnetic gear and the concept of the memory machine. The high-remanence low-coercivity permanent magnet material: namely, the aluminium–nickel–cobalt is adopted to realise the controllable gear ratios. The key is to design the stationary ring newly integrated with magnetising windings in such a way that 16 sets of gear ratios can be achieved so as to fulfil different driving requirements and road conditions. First, the original MVG, the improved MVG and the proposed MVG are discussed. Then, a comprehensive analysis of the proposed MVG is conducted. Consequently, the proposed MVG is extended to electronic-continuously variable transmission for hybrid vehicular propulsion. By using finite element analysis, the electromagnetic performances of three MVGs at various gear ratios are evaluated, hence validating the theoretical design. Moreover, the process of gear-ratio-changing is simulated and analysed. A quantitative comparison among these MVGs is also carried out. Hence, the corresponding validity can be further verified.
References
-
-
1)
-
12. Yu, C., Chau, K.T.: ‘Design, analysis, and control of DC-excited memory motors’, IEEE Trans. Energy Convers., 2011, 26, (2), pp. 479–489 (doi: 10.1109/TEC.2010.2085048).
-
2)
-
7. Atallah, K., Calverley, S.D., Howe, D.: ‘Design, analysis and realization of a high-performance magnetic gear’, IEE Proc., Electr. Power Appl., 2004, 151, (2), pp. 135–143 (doi: 10.1049/ip-epa:20040224).
-
3)
-
15. Chen, M., Chau, K.T., Liu, C.: ‘Design and analysis of an advanced magnetic gear for hybrid electric vehicles’. Proc. IEEE Int. Magnetics Conf. 2015, Beijing, China, May 2015, .
-
4)
-
5. Miller, J.M.: ‘Propulsion systems for hybrid vehicles’ (IET, 2011).
-
5)
-
6. Chau, K.T.: ‘Electric vehicle machines and drives: design, analysis and application’ (Wiley-IEEE Press, 2015).
-
6)
-
1. Chau, K.T., Chan, C.C.: ‘Emerging energy-efficient technologies for hybrid electric vehicles’, Proc. IEEE, 2007, 95, (4), pp. 821–835 (doi: 10.1109/JPROC.2006.890114).
-
7)
-
17. Wang, J., Atallah, K., Carvley, S.D.: ‘A magnetic continuously variable transmission device’, IEEE Trans. Magn., 2011, 47, (10), pp. 2815–2818 (doi: 10.1109/TMAG.2011.2157470).
-
8)
-
3. Chan, C.C., Jian, L., Dan, T.D.: ‘Smart charging of electric vehicles – integration of energy and information’, IET Electr. Syst. Transp., 2014, 4, (4), pp. 89–96 (doi: 10.1049/iet-est.2013.0025).
-
9)
-
16. Jian, L., Chau, K.T., Gong, Y., et al: ‘Analytical calculation of magnetic field in surface-inset permanent magnet motors’, IEEE Trans. Magn., 2009, 45, (10), pp. 4688–4691 (doi: 10.1109/TMAG.2009.2024891).
-
10)
-
13. Yu, C., Chau, K.T.: ‘New fault-tolerant flux-mnemonic doubly-salient permanent-magnet motor drive’, IET Electr. Power Appl., 2011, 5, (5), pp. 393–403 (doi: 10.1049/iet-epa.2009.0300).
-
11)
-
9. Huang, C.C., Tsai, M.C., Dorrell, D.G., et al: ‘Development of a magnetic planetary gearbox’, IEEE Trans. Magn., 2012, 44, (3), pp. 403–412 (doi: 10.1109/TMAG.2007.914665).
-
12)
-
10. Chen, M., Chau, K.T., Li, W., et al: ‘Development of non-rare-earth magnetic gears for electric vehicles’, J. Asian Electr. Veh., 2012, 10, (2), pp. 1607–1613 (doi: 10.4130/jaev.10.1607).
-
13)
-
11. Ostovic, V.: ‘Memory motors’, IEEE Ind. Appl. Mag., 2003, 9, (1), pp. 52–61 (doi: 10.1109/MIA.2003.1176459).
-
14)
-
14. Chen, M., Chau, K.T., Li, W., et al: ‘Design and analysis of a new magnetic gear with multiple gear ratios’, IEEE Trans. Appl. Supercond., 2010, 24, (3), pp. 0501904:1–0501904:4.
-
15)
-
4. Mi, C., Masrur, M.A., Gao, D.W.: ‘Hybrid electric vehicles: principles and applications with practical perspectives’ (Wiley, 2011).
-
16)
-
8. Jian, L., Chau, K.T., Gong, Y., et al: ‘Comparison of coaxial magnetic gears with different topologies’, IEEE Trans. Magn., 2009, 45, (10), pp. 4526–4529 (doi: 10.1109/TMAG.2009.2021662).
-
17)
-
18. Jian, L., Chau, K.T.: ‘Design and analysis of a magnetic-geared electronic-continuously variable transmission system using finite element method’, Prog. Electromagn. Res., 2010, 107, pp. 47–61 (doi: 10.2528/PIER10062806).
-
18)
-
2. Ehsani, M., Gao, Y., Emadi, A.: ‘Modern electric, hybrid electric, and fuel cell vehicles: fundamentals, theory, and design’ (CRC Press, 2010).
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