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Inductance Calculation in a Switched Reluctance Motor using Permeance Method

퍼미언스 방법을 이용한 스위치드 릴럭턴스 전동기의 인덕턴스 산정

  • Lee, Cheewoo (Dept. of Electrical Engineering, Kyungsung University)
  • 이치우 (경성대학교 전기공학과)
  • Received : 2012.09.29
  • Accepted : 2012.11.15
  • Published : 2012.12.01

Abstract

Torque is proportional to the rate of change of inductance in a switched reluctance motor (SRM), and hence, phase inductance is an important parameter in determining the behavior of an SRM. Therefore, the accurate prediction of inductance with respect to rotor position makes a significant contribution to designing an SRM and its analytical approach is not straightforward due to nonlinear flux distribution. Although several different approaches using a finite element analysis (FEA) or curve-fitting tool have been employed to compute phase inductance [2-5], they are not suitable for a simple design procedure because the FEA necessitates a large amount of time in both modeling and solving with complexity for every motor design, and the curve-fitting requires the data of flux linkage from either an experimental test or an FEA simulation. In this paper, phase inductance is predicted by means of a permeance method, and the proposed approach is analytically verified in terms of the accuracy of estimated inductance compared to inductance obtained by FEA.

Keywords

References

  1. R. Krishnan, "Switched Reluctance Motor Drives", CRC, 2001.
  2. D. A. Torrey and J. H. Lang, "Modeling a nonlinear variable reluctance motor drive," Proc. Inst. Elect. Eng., pt. B, vol. 137, pp. 314-326, 1990.
  3. T. J. E. Miller and McGilp, "Nonlinear theory of the switched reluctance motor for rapid computer-aided design," Proc. Inst. Elect. Eng., pt. B, vol. 137, pp. 337-347, 1990.
  4. D. A. Torrey, "An experimentally verified variable reluctance machine model implemented in the saber circuit simulator," Electric Machines Power Syst., vol. 24, no. 2, pp. 199-209, Mar. 1996. https://doi.org/10.1080/07313569608955668
  5. M. Stiebler and K. Liu, "An analytical model of switched reluctance machines," IEEE Trans. Energy Conversion, vol. 14, pp. 1100-1105, Dec. 1999. https://doi.org/10.1109/60.815034
  6. James M. Kokernak and David A. Torrey, "Magnetic Circuit Model for the Mutually Coupled Switched-Reluctance Machine", IEEE Trans. on Magnetics, vol.36, no.2, pp. 500-507, Mar. 2000. https://doi.org/10.1109/20.825824
  7. Cheewoo Lee and R. Krishnan, "New Designs of a Two-Phase E-Core Switched Reluctance Machine by Optimizing the Magnetic Structure for a Specific Application: Concept, Design, and Analysis", IEEE Trans. on Industry Applications, Vol. 45, No. 5, pp 1804-1814, Sept./Oct. 2009. https://doi.org/10.1109/TIA.2009.2027570