Journal of Power Electronics

  • 제23권4호
  • /
  • Pages.656-665
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  • 2023
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  • 1598-2092(pISSN)
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  • 2093-4718(eISSN)
전력전자학회 (The Korean Institute of Power Electronics)
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Design and torque calculation of permanent magnet eddy current coupling with sinusoidal torque output

  • Ke Chen (Hefei University of Technology) ;
  • Hongyang Shi (Hefei University of Technology) ;
  • Yajun Guo (The 38th Research Institute of China Electronics Technology Group Corporation) ;
  • Lei Yin (Institute of Plasma Physics, Chinese Academy of Sciences) ;
  • Ziwei Bao (The 38th Research Institute of China Electronics Technology Group Corporation) ;
  • Hongmei Zheng (Hefei University of Technology)
  • 투고 : 2022.07.31
  • 심사 : 2023.01.17
  • 발행 : 2023.04.20
⟨ 이전 논문 다음 논문 ⟩

초록

Due to its unique characteristic of non-contact torque transmission between its permanent magnetic rotor and conductor rotor, permanent magnet eddy current coupling (PMECC) is preferable in transmitting torque from the outside to the inside of a sealed container, which can effectively avoid the tricky problem of dynamic seals. To mix non-uniform liquid solutions or gas mixtures in sealed containers more effectively, a sinusoidal torque is also required. Thus, permanent magnet eddy current coupling with a slotted conductor is proposed in this paper, which can adaptively output sinusoidal torque under a real-time load when the input rotational speed is constant. Based on the equivalent magnetic circuit method, an analytical model for calculating torque is proposed. When establishing the equivalent magnetic circuit model of the PMECC, the radial magnetic flux leakage circuit is added to the equivalent magnetic circuit diagram, and the cross-sectional shape of the eddy current region is equivalent to an octagon, which simplifies the torque calculation process. The analytical model is verified by finite element method (FEM) simulation and experiments. According to a comparison, the peak and lowest values of output torque obtained by the experiments, the analytical model, and the FEM simulation are consistent. The output torque waveform obtained by the analytical model and FEM simulation are also consistent.

키워드

과제정보

This work was supported in part by National Outstanding Youth Science Fund Project of National Natural Science Foundation of China under Grant 51705499

참고문헌

  1. Ma, E., Zhao, H., Chen, S., Wang, S., Huo, X., Yao, Y.: Highprecision steady speed fywheel system based on sine wave drive. In: 38th Chinese Control Conference, pp. 3036-3041 (2019)
  2. Voronin, S.G., Kurnosov, D.A., Korobatov, D.V., Shaburov, P.O., Kul'mukhametova, A.S.: Electromagnetic and resistance torque on a synchronous motor shaft with permanent magnet excitation. Russ. Electr. Eng. 83(2), 61-63 (2012) https://doi.org/10.3103/S1068371212020137
  3. Sizov Gennadi, Y., Ionel Dan, M., Demerdash Nabeel, A.O.: Modeling and parametric design of permanent-magnet AC machines using computationally efcient fnite-element analysis. IEEE Trans. Ind. Electron. 59(6), 2403-2413 (2012) https://doi.org/10.1109/TIE.2011.2163912
  4. Kim, K.C., Ryu, D.S.: Torque characteristic with respect to the load angle of a permanent magnet motor. IEEE Trans. Magn. 48(11), 4200-4203 (2012) https://doi.org/10.1109/TMAG.2012.2203353
  5. Ma, X.Y., Li, G.J., Jewell, G.W., Zhu, Z.Q., Zhan, H.L.: Performance comparison of doubly salient reluctance machine topologies supplied by sinewave currents. IEEE Trans. Ind. Electron. 63(7), 4086-4096 (2016) https://doi.org/10.1109/TIE.2016.2544722
  6. Wang, S.X., Liu, G.L., Tsang, C., Li, W.D., Liao, S., Hsu, Y., Park, C., Gao, Z.: Efect of magnetic tunneling junction sensor size on ferromagnetic interlayer coupling. IEEE Trans. Magn. 47(10), 3415-3417 (2016) https://doi.org/10.1109/TMAG.2011.2147297
  7. Yu, G.D., Xu, Y.X., Zou, J.B., Wang, G.: Analysis and experimental validation of dynamic performance for slotted limited-angle torque motor. IEEE Trans. Magn. 53(11), 8207804 (2017)
  8. Azari, M.N., Mirsalim, M.: Line-start permanent-magnet motor synchronisation capability improvement using slotted solid rotor. IET Electr. Power App.. 7(6), 462-469 (2016) https://doi.org/10.1049/iet-epa.2013.0042
  9. Matsubara, T., Ishihara, Y., Kitamura, S., Inoue, Y.: Magnetic feld analysis in shaded pole motor taking skewed slot efects into account. IEEE Trans. Magn. 31(3), 1916-1919 (1995) https://doi.org/10.1109/20.376414
  10. Razavi, H.K., Lamperth, M.U.: Eddy current coupling with slotted conductor disk. IEEE Trans. Magn. 42(3), 405-410 (2006) https://doi.org/10.1109/TMAG.2005.862762
  11. Li, Z., Wang, D., Zheng, D.: Accurate prediction and analysis of electromagnetic felds and forces in fux-focusing eddy current coupling with double slotted conductor rotors. IEEE Access. 6, 37685-37699 (2018) https://doi.org/10.1109/ACCESS.2018.2849857
  12. Dai, X., Liang, Q.H., Cao, J.Y., Wan, S.G., Mo, J.Q., Wang, S.G.: Analytical modeling of axial-fux permanent magnet eddy current couplings with a slotted conductor topology. IEEE Trans. Magn. 52(2), 8000315 (2016)
  13. De La Barriere, O., Ben Ahmed, H., Gabsi, M., LoBue, M.: Twodimensional analytical airgap feld model of an inset permanent magnet synchronous machine, taking into account the slotting efect. IEEE Trans. Magn. 49(4), 1423-1435 (2013) https://doi.org/10.1109/TMAG.2012.2217504
  14. Hekmat, P., Mirsalim, M.: Design and analysis of a novel axialfux slotless limited-angle torque motor with trapezoidal cross section for the stator. IEEE Trans. Energy Convers. 28(4), 815-822 (2013) https://doi.org/10.1109/TEC.2013.2280248
  15. Du, Y., Shi, X.L., Xiao, F., Zhu, X.Y., Quan, L., Fan, D.Y., Li, G.J.: Equivalent magnetic circuit analysis of doubly salient PM machine with Π-shaped stator iron core segments. IEEE Trans. Appl. Supercond. 30(4), 5201505 (2020)
  16. Li, C.H., Wang, G.F., Zhao, Y.S., Fan, Y.S.: A calculation method for torque of magnetic coupling. ICIC Express Lett. 10(7), 1581-1589 (2016)
  17. Wang, J., Zhu, J.G.: A simple method for performance prediction of permanent magnet eddy current couplings using a new magnetic equivalent circuit model. IEEE Trans. Ind. Electron. 65(3), 2487-2495 (2018) https://doi.org/10.1109/TIE.2017.2739704
  18. Yang, C.J., Peng, Z.Z., Tai, J.X., Zhu, L., Telezing, B.J.K., Ombolo, P.D.: Torque characteristics analysis of slotted-type eddy-current couplings using a new magnetic equivalent circuit model. IEEE Trans. Magn. (2020). https://doi.org/10.1109/ TMAG.2020.3009479
  19. Ren, X.J., Feng, M., Chen, S.H., Miao, C.X., Ren, Y.: The cross-coupling problem caused by the structure of a combined radial-axial magnetic bearing for DC motors. Int. J. Appl. Electromagn. Mech. 62(1), 173-189 (2020) https://doi.org/10.3233/JAE-190013