Modal Analysis of Different Stator Configurations to Mitigate Electromagnetically Excited Audible Noise and Vibrations of Switched Reluctance Motors

Authors

  • Selma Čorović Department of Mechatronics, Laboratory for Electrical Machines, Faculty of Electrical Engineering University of Ljubljana, SI1000 Ljubljana, Slovenia
  • Rok Benedetič Department of Mechatronics, Laboratory for Electrical Machines, Faculty of Electrical Engineering University of Ljubljana, SI1000 Ljubljana, Slovenia
  • Damijan Miljavec Department of Mechatronics, Laboratory for Electrical Machines, Faculty of Electrical Engineering University of Ljubljana, SI1000 Ljubljana, Slovenia

Keywords:

Electromagnetic force, finite element analysis, modal analysis, natural frequencies, noise and vibration, switched reluctance machines

Abstract

The primary objective of this paper was to investigate different stator configurations of switched reluctance motors (SRM) in order to mitigate electromagnetically exited audible noise and vibration. We analyzed natural frequencies of different SRM stator configurations by virtue of modal analysis theory. The three-dimensional numerical modeling of SRM stator geometry was performed by using finite element method. Based on the output results, we propose the solutions on how to select an appropriate stator configuration in order to increase its natural frequencies beyond the resonant operational frequency, and thus, to mitigate the resulting audible noise and vibration. The numerical and analytical results are successfully compared to the published data.

Downloads

Download data is not yet available.

References

M. Yilmaz, “Limitations/capabilities of electric machine technologies and modeling approaches for electric motor design and analysis in plug-in electric vehicle applications,” Renew Sust. Energ. Rev., vol. 52, pp. 80-99, 2015.

M. Takiguchi, H. Sugimoto, N. Kurihara, and C. Chiba, “Acoustic noise and vibration reduction of SRM by elimination of third harmonic component in sum of radial forces,” IEEE Trans. Energy Convers., vol. 30, pp. 883-891, 2015.

T. J. E. Miller, “Optimal design of switched reluctance motors,” IEEE T. Ind. Electron., vol. 49, pp. 15-27, 2002.

R. Krishnan, D. Blanding, A. Bhanot, A. M. Staley, and N. S. Lobo, “High reliability SRM drive system for aerospace applications,” In: The 29th Annual Conference of the IEEE Industrial Electronics Society (IECON 2003), Roanoke, VA, USA: IEEE, pp. 1110-1115, 2-6 Nov. 2003.

S. Haghbin, A. Rabiei, and E. Grunditz, “Switched reluctance motor in electric or hybrid vehicle applications: A status review,” In: The 8th IEEE Conference on Industrial Electronics and Applications (ICIEA 2013), Melbourne, Australia: IEEE, pp. 1017-1022, 19-21 June 2013.

Z. Xu, D. H. Lee, and J. W. Ahn, “Design and operation characteristics of a novel switched reluctance motor with a segmental rotor,” IEEE T. Ind. Appl., vol. 52, pp. 2564-2572, 2016.

S. Song, S. Chen, and W. Liu, “Analytical rotor position estimation for SRM based on scaling of reluctance characteristics from torque-balanced measurement,” IEEE T. Ind. Electron., vol. 64, pp. 3524-3536, 2017.

W. Wang, M. Luo, E. Cosoroaba, B. Fahimi, and M. Kiani, “Rotor shape investigation and optimization of double stator switched reluctance machine,” IEEE T. Mag., vol. 51, pp. 8103304, 2015.

W. Cai, P. Pillay, and Z. Tang, “Impact of stator windings and end-bells on resonant frequencies and mode shapes of switched reluctance motors,” IEEE T. Ind. Appl., vol. 38, pp. 1027-1036, 2002.

P. C. Desai, M. Krishnamurthy, N. Schofield, and A. Emadi, “Novel switched reluctance machine configuration with higher number of rotor poles than stator poles: Concept to implementation,” IEEE T. Ind. Appl., vol. 57, pp. 649-659, 2010.

C. Lin and B. Fahimi, “Prediction of acoustic noise in switched reluctance motor drives,” IEEE T. Energy Conver., vol. 29, pp. 250-258, 2014.

M. N. Anwar and I. Husain, “Radial force calculation and acoustic noise prediction in switched reluctance machines,” IEEE T. Ind. Appl., vol. 36, pp. 1589-1597, 2000.

T. Lachman, T. R. Mohamad, and G. L. A. Onyango, “Analytical methods for prediction of acoustic noise generation in switched reluctance motors,” In: IEEE International Conference on Robotics, Intelligent Systems and Signal Processing, Changsha, Hunan, China: IEEE, pp. 226-231, 8-13 Oct. 2003.

J. P. Lecointe, R. Romary, J. F. Brudny, and T. Czapla, “Five methods of stator natural frequency determination: Case of induction and switched reluctance machines,” Mech. Syst. Signal Pr., vol. 18, pp. 1133-1159, 2004.

R. Krishnan, Switched Reluctance Motor Drives: Modeling, Simulation, Analysis, Design, and Applications. Boca Raton, FL, USA: CRC Press, 2001.

H. Jordan, Geräuscharme Elektromotoren: Lärmbildung und Lärmbeseitigung bei Elektromotoren. Essen: Girardet, 1950.

S. A. Long, Z. Q. Zhu, and D. Howe, “Vibration behavior of stators of switched reluctance machines,” IET Electr. Power App., vol. 148(3), pp. 257- 264, 2001.

B. T. Wang and D. K. Cheng, “Modal analysis of mdof system by using free vibration response data only,” Journal of Sound and Vibration, vol. 311, pp. 737-755, 2008.

Downloads

Published

2021-07-30

How to Cite

[1]
Selma Čorović, Rok Benedetič, and Damijan Miljavec, “Modal Analysis of Different Stator Configurations to Mitigate Electromagnetically Excited Audible Noise and Vibrations of Switched Reluctance Motors”, ACES Journal, vol. 32, no. 12, pp. 1089–1097, Jul. 2021.

Issue

Section

Articles