Vol. 153
Latest Volume
All Volumes
PIER 179 [2024] PIER 178 [2023] PIER 177 [2023] PIER 176 [2023] PIER 175 [2022] PIER 174 [2022] PIER 173 [2022] PIER 172 [2021] PIER 171 [2021] PIER 170 [2021] PIER 169 [2020] PIER 168 [2020] PIER 167 [2020] PIER 166 [2019] PIER 165 [2019] PIER 164 [2019] PIER 163 [2018] PIER 162 [2018] PIER 161 [2018] PIER 160 [2017] PIER 159 [2017] PIER 158 [2017] PIER 157 [2016] PIER 156 [2016] PIER 155 [2016] PIER 154 [2015] PIER 153 [2015] PIER 152 [2015] PIER 151 [2015] PIER 150 [2015] PIER 149 [2014] PIER 148 [2014] PIER 147 [2014] PIER 146 [2014] PIER 145 [2014] PIER 144 [2014] PIER 143 [2013] PIER 142 [2013] PIER 141 [2013] PIER 140 [2013] PIER 139 [2013] PIER 138 [2013] PIER 137 [2013] PIER 136 [2013] PIER 135 [2013] PIER 134 [2013] PIER 133 [2013] PIER 132 [2012] PIER 131 [2012] PIER 130 [2012] PIER 129 [2012] PIER 128 [2012] PIER 127 [2012] PIER 126 [2012] PIER 125 [2012] PIER 124 [2012] PIER 123 [2012] PIER 122 [2012] PIER 121 [2011] PIER 120 [2011] PIER 119 [2011] PIER 118 [2011] PIER 117 [2011] PIER 116 [2011] PIER 115 [2011] PIER 114 [2011] PIER 113 [2011] PIER 112 [2011] PIER 111 [2011] PIER 110 [2010] PIER 109 [2010] PIER 108 [2010] PIER 107 [2010] PIER 106 [2010] PIER 105 [2010] PIER 104 [2010] PIER 103 [2010] PIER 102 [2010] PIER 101 [2010] PIER 100 [2010] PIER 99 [2009] PIER 98 [2009] PIER 97 [2009] PIER 96 [2009] PIER 95 [2009] PIER 94 [2009] PIER 93 [2009] PIER 92 [2009] PIER 91 [2009] PIER 90 [2009] PIER 89 [2009] PIER 88 [2008] PIER 87 [2008] PIER 86 [2008] PIER 85 [2008] PIER 84 [2008] PIER 83 [2008] PIER 82 [2008] PIER 81 [2008] PIER 80 [2008] PIER 79 [2008] PIER 78 [2008] PIER 77 [2007] PIER 76 [2007] PIER 75 [2007] PIER 74 [2007] PIER 73 [2007] PIER 72 [2007] PIER 71 [2007] PIER 70 [2007] PIER 69 [2007] PIER 68 [2007] PIER 67 [2007] PIER 66 [2006] PIER 65 [2006] PIER 64 [2006] PIER 63 [2006] PIER 62 [2006] PIER 61 [2006] PIER 60 [2006] PIER 59 [2006] PIER 58 [2006] PIER 57 [2006] PIER 56 [2006] PIER 55 [2005] PIER 54 [2005] PIER 53 [2005] PIER 52 [2005] PIER 51 [2005] PIER 50 [2005] PIER 49 [2004] PIER 48 [2004] PIER 47 [2004] PIER 46 [2004] PIER 45 [2004] PIER 44 [2004] PIER 43 [2003] PIER 42 [2003] PIER 41 [2003] PIER 40 [2003] PIER 39 [2003] PIER 38 [2002] PIER 37 [2002] PIER 36 [2002] PIER 35 [2002] PIER 34 [2001] PIER 33 [2001] PIER 32 [2001] PIER 31 [2001] PIER 30 [2001] PIER 29 [2000] PIER 28 [2000] PIER 27 [2000] PIER 26 [2000] PIER 25 [2000] PIER 24 [1999] PIER 23 [1999] PIER 22 [1999] PIER 21 [1999] PIER 20 [1998] PIER 19 [1998] PIER 18 [1998] PIER 17 [1997] PIER 16 [1997] PIER 15 [1997] PIER 14 [1996] PIER 13 [1996] PIER 12 [1996] PIER 11 [1995] PIER 10 [1995] PIER 09 [1994] PIER 08 [1994] PIER 07 [1993] PIER 06 [1992] PIER 05 [1991] PIER 04 [1991] PIER 03 [1990] PIER 02 [1990] PIER 01 [1989]
2015-10-13
Design and Analysis of a New Axial-Field Magnetic Variable Gear Using Pole-Changing Permanent Magnets
By
Progress In Electromagnetics Research, Vol. 153, 23-32, 2015
Abstract
This paper presents a new non-rare-earth axial-field magnetic variable gear (MVG). By real-time changing the numbers of permanent magnet (PM) pole-pairs in the input and output rotors, the gear ratio becomes controllable. The key is to propose a new stationary ring integrated with magnetizing windings in such a way that various PM pieces can be independently magnetized to form different pole-pair numbers. After introducing the unique features of the non-rare-earth PM material aluminum-nickel-cobalt (AlNiCo), the proposed topology and design principle are discussed. By using finite element analysis, the electromagnetic performances of the proposed MVG under different gear ratios are analyzed. In particular, the corresponding torque transmission capability is assessed, and the influence caused by the introduction of the magnetizing windings is discussed. Hence, the validity of the proposed MVG can be verified.
Citation
Mu Chen, Kwok-Tong Chau, Christopher H. T. Lee, and Chunhua Liu, "Design and Analysis of a New Axial-Field Magnetic Variable Gear Using Pole-Changing Permanent Magnets," Progress In Electromagnetics Research, Vol. 153, 23-32, 2015.
doi:10.2528/PIER15072701
References

1. Chau, K. T. and C. C. Chan, "Emerging energy-efficient technologies for hybrid electric vehicles," Proceedings of IEEE, Vol. 95, No. 4, 821-835, 2007.
doi:10.1109/JPROC.2006.890114

2. Chau, K.-T., W. Li, and C. H. T. Lee, "Challenges and opportunities of electric machines for renewable energy," Progress In Electromagnetics Research B, Vol. 42, 45-74, 2012.
doi:10.2528/PIERB12052001

3. Nakamura, K., M. Fukuoka, and O. Ichinokura, "Performance improvement of magnetic gear and efficiency comparison with conventional mechanical gear," Journal of Applied Physics, Vol. 115, 17A314, 2014.
doi:10.1063/1.4863809

4. Jian, L., K. T. Chau, Y. Gong, J. Z. Jiang, C. Yu, and W. Li, "Comparison of coaxial magnetic gears with different topologies," IEEE Transactions on Magnetics, Vol. 45, No. 10, 4526-4529, 2009.
doi:10.1109/TMAG.2009.2021662

5. Jian, L. and K.-T. Chau, "Analytical calculation of magnetic field distribution in coaxial magnetic gears," Progress In Electromagnetics Research, Vol. 92, 1-16, 2009.
doi:10.2528/PIER09032301

6. Li, X., K.-T. Chau, M. Cheng, and W. Hua, "Comparison of magnetic-geared permanent-magnet machines," Progress In Electromagnetics Research, Vol. 133, 177-198, 2013.
doi:10.2528/PIER12080808

7. Atallah, K. and D. Howe, "A novel high-performance magnetic gear," IEEE Transactions on Magnetics, Vol. 37, No. 4, 2844-2846, 2001.
doi:10.1109/20.951324

8. Rasmussen, P. O., T. O. Andersen, F. T. Jorgensen, and O. Nielsen, "Development of a high-performance magnetic gear," IEEE Transactions on Industry Applications, Vol. 41, No. 3, 764-770, 2005.
doi:10.1109/TIA.2005.847319

9. Liu, X., K. T. Chau, J. Z. Jiang, and C. Yu, "Design and analysis of interior-magnet outer-rotor concentric magnetic gears," Journal of Applied Physics, Vol. 105, 07F101, 2009.

10. Jian, L. and K. T. Chau, "A coaxial magnetic gear with Halbach permanent magnet arrays," IEEE Transactions on Energy Conversion, Vol. 25, No. 2, 319-328, 2010.
doi:10.1109/TEC.2010.2046997

11. Chau, K. T., Electric Vehicle Machines and Drives - Design, Analysis and Application, Wiley-IEEE Press, 2015.
doi:10.1002/9781118752555

12. Sun, X., M. Cheng, W. Hua, and L. Xu, "Optimal design of double-layer permanent magnet dual mechanical port machine for wind power application," IEEE Transactions on Magnetics, Vol. 45, No. 10, 4613-4616, 2009.
doi:10.1109/TMAG.2009.2021526

13. Chen, M., K. T. Chau, W. Li, C. Liu, and C. Qiu, "Design and analysis of a new magnetic gear with multiple gear ratios," IEEE Transactions on Applied Superconductivity, Vol. 24, No. 3, 0501904, 2014.

14. Mezani, S., K. Atallah, and D. Howe, "A high-performance axial-field magnetic gear," Journal of Applied Physics, Vol. 99, 08R303, 2006.

15. Li, W. and K.-T. Chau, "Analytical field calculation for linear tubular magnetic gears using equivalent anisotropic magnetic permeability," Progress In Electromagnetics Research, Vol. 127, 155-171, 2012.
doi:10.2528/PIER12030301

16. Lee, C. H. T., K. T. Chau, C. Liu, T. W. Ching, and F. Li, "A high-torque magnetless axial-flux doubly-salient machine for in-wheel direct drive applications," IEEE Transactions on Magnetics, Vol. 50, No. 11, 8202405, 2014.

17. Kramer, M. J., R. W. McCallum, I. A. Anderson, and S. Constantinides, "Prospects for non-rare-earth permanent magnets for traction motors and generators," Journal of the Minerals, Metals and Materials Society, Vol. 64, No. 7, 752-763, 2012.
doi:10.1007/s11837-012-0351-z

18. Chen, M., K. T. Chau, W. Li, and C. Liu, "Development of non-rare-earth magnetic gears for electric vehicles," Journal of Asian Electric Vehicles, Vol. 10, No. 2, 1607-1613, 2012.
doi:10.4130/jaev.10.1607

19. Chen, M., K. T. Chau, W. Li, and C. Liu, "Cost-effectiveness comparison of coaxial magnetic gears with different magnet materials," IEEE Transactions on Magnetics, Vol. 50, No. 2, 7020304, 2014.
doi:10.1109/TMAG.2013.2281988

20. Ostovic, V., "Pole-changing permanent-magnet machines," IEEE Transactions on Industry Applications, Vol. 38, No. 6, 1493-1499, 2002.
doi:10.1109/TIA.2002.805568

21. Ostovic, V., "Memory motors," IEEE Industry Applications Magazine, Vol. 9, No. 1, 52-61, 2003.
doi:10.1109/MIA.2003.1176459

22. Yu, C., K. T. Chau, and J. Z. Jiang, "A flux-mnemonic permanent magnet brushless machine for wind power generation," Journal of Applied Physics, Vol. 105, No. 7, 07F114, 2009.

23. Yu, C. and K. T. Chau, "Design, analysis and control of DC-excited memory motors," IEEE Transactions on Energy Conversion, Vol. 26, No. 2, 479-489, 2011.
doi:10.1109/TEC.2010.2085048