IJE TRANSACTIONS B: Applications Vol. 32, No. 5 (May 2019) 693-700   

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M. Niaz Azari
( Received: February 21, 2019 – Accepted in Revised Form: April 05, 2019 )

Abstract    This paper analyzes an induction motor with high temperature superconducter (HTS) coated slotted solid rotor. By slotting the solid rotor, the electromagnetic torque near synchronous speed will increase but the starting torque will decrease. To improve starting torque, rotor slots are coated with HTS materials. Using HTS material vary the rotor resistance to great extends in starting step and this means the starting torque will be maximized. Also the torque near synchronous speed will be higher than before because of the resistance of the HTS is completely zero in this period. This would help the torque become more than the case without any coating. It is concluded that, HTS coating of slotted solid rotor will increase the starting torque by 42 and 74% than smooth type rotor and slotted one, respectively. For case-study motor, the torque near synchronous speed these improvements were 75% and 33%, respectively. The performance of the proposed motor is simulated using finite element method (FEM).


Keywords    Bi-2223/Ag Super Conductor; Critical Current; Slotted Solid Rotor; Starting Torque



در این مقاله به بررسی موتور القایی با روتور شیاردار پوشیده شده از ابررسانای HTS پرداخته می‌شود. با شیاردار کردن روتور گشتاور الکترومغناطیسی در نزدیک سرعت سنکرون افزایش می‌یابد ولی گشتاور راه‌اندازی کاهش می‌یابد. برای بهبود گشتاور راه‌اندازی شیارها با روکش ابررسانا پوشیده شده‌اند. این کار باعث افزایش مقاومت روتور می‌شود که موجب افزایش گشتاور راه‌اندازی خواهد شد. همچنین این پدیده موجب می‌شود گشتاور نزدیک سرعت سنکرون نیز افزایش‌یابد زیرا مقاومت روتور در این حالت تقریباً صفر می‌شود. با پوشش ابررسانای روتور، گشتاور راه‌اندازی برای موتور با روتور یکپارچه بدون شیار 42 درصد و برای روتور با شیار 74 درصد افزایش می‌یابد. همچنین گشتاور نزدیک سنکرون برای موتور با روتور یکپارچه بدون شیار 75 درصد و برای روتور با شیار 33 درصد برای موتور نمونه زیاد خواهد شد. عملکرد روش پیشنهادی با استفاده از روش اجزای محدود مورد شبیه‌سازی قرار گرفته است.


1. Hassanpour Isfahani, A., and Vaez-Zadeh, S., “Line start permanent magnet synchronous motors: Challenges and opportunities”, Energy, Vol. 34, No. 11, (2009), 1755–1763. 
2. Marcic, T., Stumberger, G., Stumberger, B., Hadziselimovic, M., and Virtic P., “Determining Parameters of a Line-Start Interior Permanent Magnet Synchronous Motor Model by the Differential Evolution”, IEEE Transactions on Magnetics, Vol. 44, No. 11, (2008), 4385–4388. 
3. Yektaniroumand, T., Azari, M. N., and Gholami, M., “Optimal Rotor Fault Detection in Induction Motor Using Particle-Swarm Optimization Optimized Neural Network”, International Journal of Engineering - Transactions B: Applications, Vol. 31, No. 11, (2018), 1876–1882. 
4. Aho, T., “Electromagnetic Design of a Solid Steel Rotor Motor for Demanding Environments”, Doctoral dissertation, University of Technology, Lappeenranta, Finland, 2007.
5. Sim, J., Park, M., Lim, H., Cha, G., Ji, J., and Lee, J., “Test of an induction motor with HTS wire at end ring and bars”, IEEE Transactions on Appiled Superconductivity, Vol. 13, No. 2, (2003), 2231–2234. 
6. Nakamura, T., Miyake, H., Ogama, Y., Morita, G., Muta, I., and Hoshino, T., “Fabrication and Characteristics of HTS Induction Motor by the Use of Bi-2223/Ag Squirrel-Cage Rotor”, IEEE Transactions on Applied Superconductivity, Vol. 16, No. 2, (2006), 1469–1472. 
7. Song, T., Ninomiya, A., and Ishigohka, T., “Experimental Study on Induction Motor With Superconducting Secondary Conductors”, IEEE Transactions on Applied Superconductivity, Vol. 17, No. 2, (2007), 1611–1614. 
8. Sekiguchi, D., Nakamura, T., Misawa, S., Kitano, H., Matsuo, T., Amemiya, N., Ito, Y., Yoshikawa, M., Terazawa, T., Osamura, K., Ohashi, Y., and Okumura, N., “Trial Test of Fully HTS Induction/Synchronous Machine for Next Generation Electric Vehicle”, IEEE Transactions on Applied Superconductivity, Vol. 22, No. 3, (2012), Article No. 5200904. 
9. Nakamura, T., Itoh, Y., Yoshikawa, M., Nishimura, T., Ogasa, T., Amemiya, N., Ohashi, Y., Fukui, S., and Furuse, M., “Tremendous Enhancement of Torque Density in HTS Induction/Synchronous Machine for Transportation Equipments”, IEEE Transactions on Applied Superconductivity, Vol. 25, No. 3, (2015), Article No. 5202304. 
10. Aho, T., Sihvo, V., Nerg, J., and Pyrhonen, J., “Rotor Materials for Medium-Speed Solid-Rotor Induction Motors”, In IEEE International Electric Machines & Drives Conference, IEEE, (2007), 525–530. 
11. Sharma, N. D., Anbarasu, R., Nataraj, J., Dangore, A., and Bhattacharjee, B., “Experimental investigations on high speed solid and composite rotor induction motor”, In Proceedings of International Conference on Power Electronics, Drives and Energy Systems for Industrial Growth, Vol. 2, (1996), 913–919. 
12. Pyrhonen, J., Nerg, J., Kurronen, P., and Lauber, U., “High-Speed High-Output Solid-Rotor Induction-Motor Technology for Gas Compression”, IEEE Transactions on Industrial Electronics, Vol. 57, No. 1, (2010), 272–280. 
13. Ho, S. L., Niu, S., and Fu, W. N., “A Novel Solid-Rotor Induction Motor With Skewed Slits in Radial and Axial Directions and Its Performance Analysis Using Finite Element Method”, IEEE Transactions on Applied Superconductivity, Vol. 20, No. 3, (2010), 1089–1092. 
14. Niaz Azari, M., and Mirsalim, M., “Performance Analysis of a Line-start Permanent Magnet Motor with Slots on Solid Rotor Using Finite-element Method”, Electric Power Components and Systems, Vol. 41, No. 12, (2013), 1159–1172. 
15. Sim, J., Lee, K., Cha, G., and Lee, J., “Development of a HTS Squirrel Cage Induction Motor With HTS Rotor Bars”, IEEE Transactions on Appiled Superconductivity, Vol. 14, No. 2, (2004), 916–919. 
16. Niaz Azari, M., and Mirsalim, M., “Line-start permanent-magnet motor synchronisation capability improvement using slotted solid rotor”, IET Electric Power Applications, Vol. 7, No. 6, (2007), 462–469. 

17. Canova, A. and Vusini, B., “Design of axial eddy-current couplers”, IEEE Transactions on Industry Applications, Vol. 39, No. 3, (2003), 725–733. 
18. Nibbio, N., Stavrev, S., and Dutoit, B., “Finite element method simulation of AC loss in HTS tapes with B-dependent E-J power law”, IEEE Transactions on Appiled Superconductivity, Vol. 11, No. 1, (2001), 2631–2634. 
19. Stavrev, S., Grilli, F., Dutoit, B., Nibbio, N., Vinot, E., Klutsch, I., Meunier, G., Tixador, P., Yang, Y., and Martinez, E., “Comparison of numerical methods for modeling of superconductors”, IEEE Transactions on Magnetics, Vol. 38, No. 2, (2002), 849–852. 
20. Fukui, S., Ogawa, J., Sato, T., Tsukamoto, O., Kashima, N., and Nagaya, S., “Study of 10 MW-Class Wind Turbine Synchronous Generators With HTS Field Windings”, IEEE Transactions on Applied Superconductivity, Vol. 21, No. 3, (2011), 1151–1154. 
21. Kalsi, S., Applications of high temperature superconductors to electric power equipment, John Wiley & Sons, Hoboken, New Jersey, (2011).
22. Choi, S., Kiyoshi, T., Matsumoto, S., Itoh, K., Hase, T., Zaitsu, K., Hamada, M., and Sugano, M., “The Characteristics of Bi-2223/Ag Conductor for High Field Application”, IEEE Transactions on Applied Superconductivity, Vol. 18, No. 2, (2008), 1159–1162. 
23. Kachhava, C., Solid State Physics, Solid State Device And Electronics, New Age International, (2003).
24. van der Laan, D. C., Van eck, H., Haken, B., Schwartz, J., and Ten Kate, H., “Temperature and magnetic field dependence of the critical current of Bi/sub 2/Sr/sub 2/Ca/sub 2/Cu/sub 3/O/sub x/ tape conductors”, IEEE Transactions on Appiled Superconductivity, Vol. 11, No. 1, (2001), 3345–3348. 
25. Yusefi, A., and Javadpour, J., “Effect of Sintering Conditions on Microstructure and the Superconducting Properties of YBa2Cu3O7 x”, International Journal of Engineering - Transactions B: Applications, Vol. 16, No. 4, (2003), 355–360. 

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