Effect of rotor geometry on performance of 6/4 switched reluctance motors

Öz

This study investigates the effect of rotor geometry on performance in switched reluctance motors (SRM) using models analyzed by the 2-D Finite Element Method (FEM). All models have the same stator geometry, winding features, and air gap, but have different rotor geometries. The SRM model operates at nominal speed of 3000 rpm; with 6/4 pole and 150 W output power. Magnetic model analysis was undertaken for the 3 different rotor models. Electrical performance characteristics; speed, phase current, source current, efficiency, electromagnetic torque, and load torque were determined. Magnetic flux density and flux lines in the stator and rotor and the current densities in windings are presented. The optimal rotor model for SRM was determined by considering electrical and magnetic performance data.

Anahtar Kelimeler

• Switched Reluctance Motor
• Rotor Geometry
• Finite Element Method
• Modelling

Kaynakça

1. 1. C.E. İyde, A. Polat, L. T.Ergene, “6/4 ve 8/6 stator/rotor yapılarında ARM tasarımı, analizi ve karşılaştırması,” Paper Presented at the National Conference on Electrical, Electronics and Biomedical Engineering, 2016, pp. 339–343.
2. 2. Ü. Mutlu, “Anahtarlamalı Relüktans Motor Sürücü Devre Tasarimi,” Msc Thesis, Institute of Science and Technology, Erciyes, 2006.
3. 3. M.M. Alaee, E. Afjei., S. Ataei, “A new resonant driver for switched reluctance motor,” Paper Presented at the International Conference on Electrical Engineering, 2007.
4. 4. K. Masoudi, M.R. Feyzi., A. Masoudi, “Reduction of vibration and acoustic noise in the switched reluctance motor by using new improved stator yoke shape,“ Paper Presented at the 21st Iranian Conference on Electrical Engineering, 2013, pp. 1–4.
5. 5. Bal G., Özel Elektrik Makinaları, Seçkin Press, 2011, Ankara.
6. 6. B. Bilgin., A. Emadi., M. Krishnamurthy, “Design considerations for switched reluctance machines with a higher number of rotor poles,” IEEE Trans. on Ind. Electronics, vol. 59, no. 10, pp. 3745–3756, 2012.
7. 7. A. Fenercioğlu & İ. Tarımer, “Anahtarlamalı relüktans motor tasarımlarında farklı rotor geometrilerinin motor güç ve tork üretimine etkileri,” Journal of Balıkesir University, vol. 10, no. 1, pp. 19-30, 2008.
8. 8. K. Vijayakumar et al., “Switched reluctance motor modelling, design, simulation, and analysis: a comprehensive review” IEEE Transactions on Magnetics, vol. 44, no. 12, pp. 4605–4617, 2008.

9. 9. J.W. Lee et al., “New rotor shape design for minimum torque ripple of SRM using FEM,” IEEE Transactions on Magnetics, vol. 40, no. 2, pp. 754 – 757, 2004.
10. 10. P.C. Desai et al., “Switched reluctance machines with higher rotor poles than stator poles for ımproved output torque characteristics,” Paper presented at the 35th annual conference of IEEE industrial electronics, 2009, pp. 1338–1343.
11. 11. Z. Omaç, H. Kürüm, A.H. Selçuk., “18/12 kutuplu bir anahtarlı relüktans motorun tasarımı, incelenmesi ve kontrolü” Fırat University Journal of Engineering Science, vol. 19, no. 3, pp. 339-346, 2007.
12. 12. A.V. Reddy & B.M. Kumar, “Torque ripple minimization of switched reluctance motor using pole embrace and pole configuration methods” International Journal of Applied Engineering Research, vol. 13, no. 10, pp. 8525-8529, 2018.
13. 13. K. Çakır & A. Sabonovic, “In-wheel motor design for electric vehicles,” Paper Presented at the 9th International Workshop on Advanced Motion Control, 2006, pp. 613-618.
14. 14. T.W. Ng, K.W.E. Cheng, X.D., “Computation of the in-wheel switched reluctance motor inductance using finite element method,” Paper Presented at the 3rd International Conference on Power Electronics Systems and Applications, 2009.
15. 15. M.C. Tsai, C.C. Huang, Z.Y. Huang, “A new two-phase homopolar switched reluctance motor for electric vehicle applications,” Journal of Magnetism and Magnetic Materials, vol. 267, no. 2, pp. 173-181. 2003.
16. 16. M. Zeraoulia, M.H. Benbouzid, D. Diallo, “Electric motor drive selection issues for HEV propulsion systems: a comparative study,” IEEE Transactions on Vehicular Technology, vol.55, no. 6, pp. 1756-1764, 2006.
17. 17. A. Fenercioğlu & M. Dursun, “Design and analysis of outer rotor in-wheel motor,” International Review of Electrical Engineering, vol. 6, no. 2, pp. 7545-751. 2011.
18. 18. Z. Xu, D.H. Lee, J.W. Ahn, “Design of a novel 6/5 segmental rotor type switched reluctance motor,” Paper presented at the IEEE industry application society annual meeting, 2014, pp 1-7.
19. 19. Y. Yaşa, Y. Sözer, M. Garip, “High power density switched reluctance machine development for high-speed spindle applications,”. Turkish Journal of Electrical Engineering & Computer Sciences, vol. 26, no. 2, pp. 1572 – 1586, 2018.