© The Institution of Engineering and Technology
This study presents a novel switched reluctance machine (SRM) with modular E-core stators and multi-layer common rotors for high reliability applications. The stator is composed of six independent modular E-cores with the windings wound around the yoke of the E-cores. The rotor consists of three magnetically independent common rotors which are place in the same shaft without any angular shift. The equivalent magnetic circuit (EMC) models of this new SRM at the aligned and unaligned positions are described. To evaluate the motor performance, two types of analysis, namely, approximate simplified two-dimensional (2D) model and 3D model finite-element analysis (FEA) have been utilised. The 2D FEA static and dynamic results are compared with 3D FEA results. Furthermore, comparisons between the novel modular SRM and a conventional 6/4 SRM are made. Finally, a prototype of this modular SRM has been fabricated and tested in the laboratory. Comparison between FEA and EMC analysis for flux linkage are made and compared with measured characteristics. The simulated and measured phase currents and average torque are also presented and compared to verify the analytical and simulation results.
References
-
-
1)
-
25. Krishnan, R.: ‘Switched reluctance motor drives: modeling, simulation, analysis, design, and applications’ (CRC Press, Boca Raton, FL, 2001).
-
2)
-
16. Ruba, M., Viorel, I.A., Szabó, L.: ‘Modular stator switched reluctance motor for fault tolerant drive systems’, IET Electr. Power Appl., 2013, 7, (3), pp. 159–169 (doi: 10.1049/iet-epa.2012.0140).
-
3)
-
T.J.E. Miller
.
Optimal design of switched reluctance motors.
IEEE Trans. Ind. Electron.
,
1 ,
15 -
27
-
4)
-
15. Choi, Y.K., Yoon, H.S., Koh, C.S.: ‘Pole-shape optimization of a switched reluctance motor for torque ripple reduction’, IEEE Trans. Magn., 2007, 43, (4), pp. 1797–1800 (doi: 10.1109/TMAG.2006.892292).
-
5)
-
11. Daldaban, F., Ustkoyuncu, N.: ‘New disc type switched reluctance motor for high torque density’, Energy Convers. Manage., 2007, 48, (8), pp. 2424–2431 (doi: 10.1016/j.enconman.2007.01.020).
-
6)
-
12. Sheth, N.K., Rajagopal, K.R.: ‘Torque profiles of a switched reluctance motor having special pole face shapes and asymmetric stator poles’, IEEE Trans. Magn., 2004, 40, (4), pp. 2035–2037 (doi: 10.1109/TMAG.2004.829841).
-
7)
-
9. Lee, C., Krishnan, R.: ‘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. Ind. Appl., 2009, 45, (5), pp. 1804–1814 (doi: 10.1109/TIA.2009.2027570).
-
8)
-
16. Torkaman, H., Afjei, E., Toulabi, M.S.: ‘New double-layer-per-phase isolated switched reluctance motor: concept, numerical analysis, and experimental confirmation’, IEEE Trans. Ind. Electron., 2012, 59, (2), pp. 830–838 (doi: 10.1109/TIE.2011.2158049).
-
9)
-
8. Xue, X.D., Cheng, K.W.E., Bao, Y.J., Leung, P.L., Cheung, N.: ‘Switched reluctance generators with hybrid magnetic paths for wind power generation’, IEEE Trans. Magn., 2012, 48, (11), pp. 3863–3867 (doi: 10.1109/TMAG.2012.2202094).
-
10)
-
18. Labak, A., Kar, N.C.: ‘Designing and prototyping a novel five-phase pancake-shaped axial-flux SRM for electric vehicle application through dynamic FEA incorporating flux-tube modeling’, IEEE Trans. Ind. Appl., 2013, 49, (3), pp. 1276–1288 (doi: 10.1109/TIA.2013.2252871).
-
11)
-
3. Lee, D.H., Liang, J., Lee, Z.G., Ahn, J.W.: ‘A simple nonlinear logical torque sharing function for low-torque ripple SR drive’, IEEE Trans. Ind. Electron., 2009, 56, (8), pp. 3021–3028 (doi: 10.1109/TIE.2009.2024661).
-
12)
-
26. Mao, S.H., Dorrell, D., Tsai, M.C.: ‘Fast analytical determination of aligned and unaligned flux linkage in switched reluctance motors based on a magnetic circuit model’, IEEE Trans. Magn., 2009, 45, (7), pp. 2935–2942 (doi: 10.1109/TMAG.2009.2016087).
-
13)
-
14. Mao, S.H., Tsai, M.C.: ‘A novel switched reluctance motor with C-core stators’, IEEE Trans. Magn., 2005, 41, (12), pp. 4413–4420 (doi: 10.1109/TMAG.2005.858372).
-
14)
-
27. Corda, J., Masic, S., Stephenson, J.M.: ‘Computation and experimental determination of running torque waveforms in switched reluctance motors’, IEE Proc. B, Electr. Power Appl., 1993, 140, (6), pp. 387–392 (doi: 10.1049/ip-b.1993.0050).
-
15)
-
F. Daldaban ,
N. Ustkoyuncu
.
Multilayer switched reluctance motor to reduce torque ripple.
Energy Convers. Manage.
,
5 ,
974 -
979
-
16)
-
17. Kim, C.S., Lee, G., Lee, K., Lee, J., Cho, Y.: ‘Design of π core and π2 core PM-aided switched reluctance motors’. Proc. IEEE Int. Conf. Electric Vehicle, Kuching, Malaysia, 2012, pp. 1–6.
-
17)
-
13. Nakamura, K., Ono, T., Goto, H., Watanabe, T., Ichinokura, O.: ‘A novel switched reluctance motor with wound-cores put on stator and rotor poles’, IEEE Trans. Magn., 2005, 41, (10), pp. 3919–3921 (doi: 10.1109/TMAG.2005.854965).
-
18)
-
15. Szabó, L., Ruba, M.: ‘Segmental stator switched reluctance machine for safety-critical applications’, IEEE Trans. Ind. Appl., 2012, 48, (6), pp. 2223–2229 (doi: 10.1109/TIA.2012.2226857).
-
19)
-
5. Ojeda, X., Mininger, X., Ahmed, H.B., Gabsi, M., Lecrivain, M.: ‘Piezoelectric actuator design and placement for switched reluctance motors active damping’, IEEE Trans. Energy Convers., 2009, 24, (2), pp. 305–313 (doi: 10.1109/TEC.2009.2016146).
-
20)
-
B.C. Mecrow ,
E.A. El-Kharashi ,
J.W. Finch ,
A.G. Jack
.
Segmental rotor switched reluctance motors with single-tooth windings.
IEE Proc. Electr. Power Appl.
,
5 ,
591 -
599
-
21)
-
4. Xue, X.D., Cheng, K.W.E., Ho, S.L.: ‘Optimization and evaluation of torque-sharing functions for torque ripple minimization in switched reluctance motor drives’, IEEE Trans. Power Electron., 2009, 24, (9), pp. 2076–2090 (doi: 10.1109/TPEL.2009.2019581).
-
22)
-
2. Ahn, J.W., Park, S.J., Lee, D.H.: ‘Modification in rotor pole geometry of mutually coupled switched reluctance machine for torque ripple mitigating’, IEEE Trans. Magn., 2012, 48, (6), pp. 2025–2034 (doi: 10.1109/TMAG.2011.2179307).
-
23)
-
17. Ding, W., Liang, D.L.: ‘Dynamic modeling and performance prediction for dual channel switched reluctance machine considering mutual coupling’, IEEE Trans. Magn., 2010, 46, (9), pp. 3652–3663 (doi: 10.1109/TMAG.2010.2045390).
-
24)
-
7. Madhavan, R., Fernandes, B.G.: ‘Axial flux segmented SRM with a higher number of rotor segments for electric vehicles’, IEEE Trans. Energy Convers., 2013, 28, (1), pp. 203–213 (doi: 10.1109/TEC.2012.2235068).
-
25)
-
10. Lee, C., Krishnan, R., Lobo, N.S.: ‘Novel two-phase switched reluctance machine using common-pole E-core structure: concept, analysis, and experimental verification’, IEEE Trans. Ind. Appl., 2009, 45, (2), pp. 703–711 (doi: 10.1109/TIA.2009.2013592).
-
26)
-
W. Ding ,
D. Liang
.
Comparison of transient and steady-state performances analysis for a dual-channel switched reluctance machine operation under different modes.
IET Electr. Power Appl.
,
8 ,
603 -
617
-
27)
-
24. Siadatan, A., Afjei, E., Torkaman, H., Rafie, M.: ‘Design, simulation and experimental results for a novel type of two-layer 6/4 three-phase switched reluctance motor/generator’, Energy Convers. Manage., 2013, 54, (4), pp. 199–207 (doi: 10.1016/j.enconman.2013.03.011).
http://iet.metastore.ingenta.com/content/journals/10.1049/iet-epa.2013.0366
Related content
content/journals/10.1049/iet-epa.2013.0366
pub_keyword,iet_inspecKeyword,pub_concept
6
6