2009-08-05
Magnetostatic Field Analysis Regarding the Effects of Dynamic Eccentricity in Switched Reluctance Motor
By
Progress In Electromagnetics Research M, Vol. 8, 163-180, 2009
Abstract
In this paper, a novel view of a switched reluctance motor under dynamic eccentricity fault to provide the precise and reliable electromagnetics model is presented. It describes the performance characteristics and comparison results of the 6/4 switched reluctance motor with dynamic rotor eccentricity utilizing three-dimensional finite element analysis. The results obtained using three-dimensional finite element analysis of the switched reluctance motor includes flux-linkages, terminal inductance per phase, mutual inductances and static torque for various eccentric motor conditions. In this analysis the end effects and axial fringing fields for simulating reliable model are obtained and presented. The paper continues with comparing these results with the ones obtained for the same motor profile but utilizing two-dimensional finite element method. Finally, Fourier analysis is carried out to study the variations of torque harmonics.
Citation
Hossein Torkaman, and Seyed Ebrahim Afjei, "Magnetostatic Field Analysis Regarding the Effects of Dynamic Eccentricity in Switched Reluctance Motor," Progress In Electromagnetics Research M, Vol. 8, 163-180, 2009.
doi:10.2528/PIERM09060205
References

1. Torkaman, H. and E. Afjei, "Comprehensive study of 2-D and 3-D finite element analysis of a switched reluctance motor," Journal of Applied Sciences, Vol. 8, No. 15, 2758-2763, 2008.
doi:10.3923/jas.2008.2758.2763        Google Scholar

2. Torkaman, H. and E. Afjei, "Comprehensive magnetic field-based study on effects of static rotor eccentricity in switched reluctance motor parameters utilizing three-dimensional finite element," Electromagnetics, Vol. 29, No. 5, 421-433, Taylor and Francis, 2009.
doi:10.1080/02726340902953354        Google Scholar

3. Guldemir, H., "Detection of airgap eccentricity using line current spectrum of induction motors," Electric Power Systems Research, Vol. 64, No. 2, 109-117, Elsevier, 2003.
doi:10.1016/S0378-7796(02)00154-2        Google Scholar

4. Sheth, N. K. and K. R. Rajagopal, "Variations in overall developed torque of a switched reluctance motor with air-gap nonuniformity," IEEE Transactions on Magnetics, Vol. 41, No. 10, 3973-3975, Oct. 2005.
doi:10.1109/TMAG.2005.855179        Google Scholar

5. Husain, I., A. Radun, and J. Nairus, "Unbalanced force calculation in switched-reluctance machines," IEEE Transaction on Magnetics, Vol. 36, No. 1, 330-338, Jan. 2000.
doi:10.1109/20.822543        Google Scholar

6. Faiz, J. and S. Pakdelian, "Finite element analysis of switched reluctance motor under dynamic eccentricity fault," 12th International Power Electronics and Motion Control Conference, 1042-1046, Aug. 2006.
doi:10.1109/EPEPEMC.2006.283299        Google Scholar

7. Dorrell, D. G., I. Chindurza, and C. Cossar, "Effects of rotor eccentricity on torque in switched reluctance machines," IEEE Transaction on Magnetics, Vol. 41, No. 10, 3961-3963, Oct. 2005.
doi:10.1109/TMAG.2005.855178        Google Scholar

8. Sheth, N. K. and K. R. Rajagopal, "Effects of nonuniform air-gap on the torque characteristics of a switched reluctance motor," IEEE Transactions on Magnetics, Vol. 40, No. 4, 2032-2034, Jul. 2004.
doi:10.1109/TMAG.2004.832173        Google Scholar

9. Geldhof, K. R., T. J. Vyncke, F. M. L. L. De Belie, L. Vandevelde, J. A. A. Melkebeek, and R. K. Boel, "Embedded runge-kutta methods for the integration of a current control loop in an SRM dynamic finite element model," IET Science. Meas. Technology., 17-20, 2007.
doi:10.1049/iet-smt:20060026        Google Scholar

10. Parreira, B., S. Rafael, A. J. Pires, and P. J. Costa Branco, "Obtaining the magnetic characteristics of an 8/6 switched reluctance machine: From FEM analysis to the experimental tests," IEEE Transactions on Industrial Electronics, Vol. 52, No. 6, 1635-1643, Dec. 2005.
doi:10.1109/TIE.2005.858709        Google Scholar

11. Kamper, M. J., S. W. Rasmeni, and R.-J. Wang, "Finite-element Time-step simulation of the switched reluctance machine drive under single pulse mode operation," IEEE Transaction on Magnetics, Vol. 43, No. 7, 3202-3208, Jul. 2007.
doi:10.1109/TMAG.2007.892792        Google Scholar

12. Sixdenier, F., L. Morel, and J. P. Masson, "Introducing dynamic behaviour of magnetic materials into a model of a switched reluctance motor drive," IEEE Transaction on Magnetics, Vol. 42, No. 3, 398-404, Mar. 2006.
doi:10.1109/TMAG.2005.862757        Google Scholar

13. Faiz, J. and B. M. Ebrahimi, "Mixed fault diagnosis in three-phase squirrel-cage induction motor using analysis of air-gap magnetic field," Progress In Electromagnetics Research, Vol. 64, 239-255, 2006.
doi:10.2528/PIER06080201        Google Scholar

14. Faiz, J., B. M. Ebrahimi, and M. B. B. Sharifian, "Time stepping finite element analysis of broken bars fault in a three-phase squirrel-cage induction motor," Progress In Electromagnetics Research, Vol. 68, 53-70, 2007.
doi:10.2528/PIER06080903        Google Scholar

15. Faiz, J., B. M. Ebrahimi, M. Valavi, and H. A. Toliyat, "Mixed eccentricity fault diagnosis in salient-pole synchronous generator using modified winding function method," Progress In Electromagnetics ResearchB, Vol. 11, 155-172, 2009.
doi:10.2528/PIERB08110903        Google Scholar

16., Magnet CAD package: User Manual, Infolytica Corporation Ltd., Jan. 2007.

17. Afjei, E., A. Sydatan, and H. Torkaman, "A new two phase bidirectional hybrid switched reluctance motor/field-assisted generator," Journal of Applied Science, Vol. 9, No. 4, 765-770, 2009.
doi:10.3923/jas.2009.765.770        Google Scholar

18. Nandi, S., H. A. Toliyat, and X.-D. Li, "Condition monitoring and fault diagnosis of electrical motors --- A review," IEEE Transactions on Energy Conversion, Vol. 20, No. 4, 719-729, Dec. 2005.
doi:10.1109/TEC.2005.847955        Google Scholar

19. Li, J., D. Choi, and Y. Cho, "Analysis of rotor eccentricity in switched reluctance motor with parallel winding using FEM," IEEE Transactions on Magnetics, Vol. 45, No. 6, 2851-2854, 2009.
doi:10.1109/TMAG.2009.2018694        Google Scholar

20. Dorrell, D. G. and C. Cossar, "A vibration-based condition monitoring system for switched reluctance machine rotor eccentricity detection," IEEE Transactions on Magnetics, Vol. 44, No. 9, 2204-2214, 2008.
doi:10.1109/TMAG.2008.2000498        Google Scholar