Rotor Suspension and Stabilization of Bearingless SRM using Sliding Mode Controller

  • Authors

    • Polamraju. V.S.Sobhan
    • G V. Nagesh Kumar
    • P V. Ramana Rao
    2018-02-09
    https://doi.org/10.14419/ijet.v7i1.8.16405
  • BLSRM, Suspension Control, Speed Control, Sliding Mode Controller.
  • Motors working in extreme conditions such as ultra high and low temperatures, high contamination, high purity etc. require high maintenance of mechanical bearings and the regular lubrication. Hence there is a need of a motor without mechanical bearings and lubrication in addition to simple in control and less maintenance. There by, bearingless motors (BLMs) gain more attention. The bearingless switched reluctance motor’s (BLSRM)  is simple in construction and economical in addition to high speed capacity and high torque to inertia ratio. The magnetic nonlinearity arising due to double salient structure makes rotor eccentric displacement control and speed regulation complicate and needs robust control methodology such as sliding mode control (SMC) which has integrity, high certainty and rapid dynamic response when compared to typical controllers. Sliding mode can be realized with distinct classical reaching laws. This paper presents design and implementation of a SMC for a 12/14 BLSRM and the dynamic performance is endorsed by simulation using Matlab software.

  • References

    1. [1] J. Bichsel, “The bearingless electrical machine,†in Proc. Int. Symp. Magn.Suspension Technol., Hampton, VA, USA, 1991, pp. 561–573.

      [2] M. Ooshima, C. Takeuchi, “Magnetic suspension performance of a bearingless brushless DC motor for small liquid pumps,†IEEE Trans. on Ind. Applications, vol. 47, no. 1, pp. 72-78, 2011.

      [3] Y. Okada, N. Yamashiro, K. Ohmori, “Mixed flow artificial heart pump with axial self-bearing motor,†IEEE/ASME Trans. on Mechatronics, vol. 10, no. 6, pp. 658-665, 2005.

      [4] J. X. Shen, K. J. Tseng, and W. K. Chan, “A novel compact PMSM with magnetic bearing for artificial heart application,†IEEE Trans. Ind. Appl.,vol. 36, no. 4, pp. 1061–1068, 2000.

      [5] T. Fukao, “The evolution of motor drive technologies. Development of bearingless motors,†in Proc. 3rd Power Electron. Motion Control Conf. (IPEMC), Beijing, China, 2000, vol. 1, pp. 33–38.

      [6] D.H.Lee and J.W. Ahn, “Design and analysis of hybrid stator bearingless SRM,†J. Elect. Eng. Tech., vol.6, no.1,pp.94–103, 2011.

      [7] C. R. Morrison, M. W. Siebert, and E. J. Ho, “Electromagnetic forces in a hybrid magnetic-bearing switched-reluctance motor,†IEEE Trans.Magn.,vol. 44, no. 12, pp. 4626–4638, Dec. 2008.

      [8] Zhenyao Xu, Dong-Hee Lee and Jin-Woo Ahn ,“ Comparative Analysis of Bearingless Switched Reluctance Motors With Decoupled Suspending Force Control†, IEEE Transactions on Industry Applications, Vol. 51, No. 1, pp 733-743, 2015.

      [9] J. Y. Hung, and V. Gao, and J. C. Hung, “Variable structure control: A survey,†IEEE Trans. Ind. Elec, Vol. 40, No. 1, 2-22, 1993.

      [10] W. Shang, S. Zhao, Y. Shen, Z. Qi, "A sliding mode flux-linkage controller with integral compensation for switched reluctance motor," IEEE Trans. Magn, vol. 45, pp. 3322- 3328, 2009.

      [11] Perruquetti W, Barbot JP. Sliding mode control in engineering. Marcel Dekker, 2002..

  • Downloads

  • How to Cite

    V.S.Sobhan, P., V. Nagesh Kumar, G., & V. Ramana Rao, P. (2018). Rotor Suspension and Stabilization of Bearingless SRM using Sliding Mode Controller. International Journal of Engineering & Technology, 7(1.8), 214-218. https://doi.org/10.14419/ijet.v7i1.8.16405