volume | PIER Journals

Abstract

This paper presents a novel topology of a dual-rotor hybrid excitation motor (DRHEM), which combines outer permanent magnet synchronous motor (PMSM) and inner doubly salient electromagnetic motor (DSEM). The structure and combination criterion of the DRHEM are introduced and studied. A new type of intermediate stator structure has been adopted and fixed in the form of stator fasteners. The electromagnetic field of the motor is analyzed, and optimization methods are proposed for reducing the cogging torque and superimposing the back electromotive force. Furthermore, to verify the theoretical analysis, experimental tests are conducted, and the torque-speed and output power-speed characteristics are compared under various speeds conditions. The results verify the electromagnetic design well.

1. Xu, Z. G., S. J. Xie, and P. Mao, "Analytical design of flux-switching hybrid excitation machine by a nonlinear magnetic circuit method," IEEE Trans. Magn., Vol. 49, No. 6, 3002-3008, Jun. 2013.
doi:10.1109/TMAG.2012.2236566 Google Scholar

2. Zhang, Q., S. Huang, and G. D. Xie, "Design and experimental verification of hybrid excitation machine with isolated magnetic paths," IEEE Trans. Energy Convers., Vol. 25, No. 4, 993-1000, Jun. 2010.
doi:10.1109/TEC.2010.2050322 Google Scholar

3. Chen, Z. H., Y. P. Sun, and Y. G. Yan, "Static characteristics of a novel hybrid excitation doubly salient machine," International Conference on Electrical Machines and Systems. IEEE, Jan. 2005. Google Scholar

4. Zhang, Z. R., J. Dai, and C. Dai, "Design considerations of a hybrid excitation synchronous machine with magnetic shunt rotor," IEEE Trans. Magn., Vol. 49, No. 11, 5566-5573, May 2013.
doi:10.1109/TMAG.2013.2262000 Google Scholar

5. Fodorean, D., A. Djerdir, and L. A. Viorel, "A double excited synchronous machine for direct drive application design and prototype tests," IEEE Trans. Energy Convers., Vol. 22, No. 3, 656-665, Aug. 2007.
doi:10.1109/TEC.2007.896279 Google Scholar

6. Owen, R. L., Z. Q. Zhu, and G. W. Jewell, "Hybrid-excited flux-switching permanent-magnet machines with iron flux bridges," IEEE Trans. Magn., Vol. 46, No. 6, 1726-1729, May 2010.
doi:10.1109/TMAG.2010.2040591 Google Scholar

7. Geng, W. W., Z. R. Zhang, and K. Jiang, "A new parallel hybrid excitation machine: permanent-magnet/variable-reluctance machine with bidirectional field-regulating capability," IEEE Trans. Ind. Electro., Vol. 62, No. 3, 1372-1381, Aug. 2014.
doi:10.1109/TIE.2014.2348936 Google Scholar

8. 8, Z. R., Y. Y. Tao, and Y. G. Yan, "Investigation of a new topology of hybrid excitation doubly salient brushless DC generator," IEEE Trans. Ind. Electro., Vol. 59, No. 6, 2550-2556, Jun. 2012.
doi:10.1109/TIE.2011.2159957 Google Scholar

9. Wang, Y. and Z. Deng, "Parallel hybrid excitation machines and their control schemes for DC generation system," IET Electric Power Applications, Vol. 6, No. 9, 669-680, Nov. 2012.
doi:10.1049/iet-epa.2012.0041 Google Scholar

10. Afinowi, I. A. A., Z. Q. Zhu, and Y. Guan, "Hybrid-excited doubly salient synchronous machine with permanent magnets between adjacent salient stator poles," IEEE Trans. Magn., Vol. 51, No. 10, ID: 8107909, Oct. 2015. Google Scholar

11. Cao, R. W., C. Mi, and M. Cheng, "Quantitative comparison of flux-switching permanent-magnet motors with interior permanent magnet motor for EV, HEV, and PHEV applications," IEEE Trans. Magn., Vol. 48, No. 8, 2374-2383, Mar. 2012.
doi:10.1109/TMAG.2012.2190614 Google Scholar

12. Zhu, S. S., C. Liu, and K. Wang, "Theoretical and experimental analyses of a hybrid excitation synchronous generator with integrated brushless excitation ," IET Electric Power Applications, Vol. 10, No. 4, 258-267, Apr. 2016.
doi:10.1049/iet-epa.2015.0262 Google Scholar

13. Fodorean, D., A. Djerdir, and L. A. Viorel, "A double excited synchronous machine for direct drive application --- Design and prototype tests," IEEE Trans. Energy Convers., Vol. 22, No. 3, 656-665, Aug. 2007.
doi:10.1109/TEC.2007.896279 Google Scholar

14. Nedjar, B., S. Hlioui, and Y. Amara, "A new parallel double excitation synchronous machine," IEEE Trans. Magn., Vol. 47, No. 9, 2252-2260, Apr. 2011.
doi:10.1109/TMAG.2011.2134864 Google Scholar

15. Jing, L. B., T. Zhang, Y. Lin, and J. Cheng, "Design, analysis, and realization of a magnetic force transmission PM brushless motor," IEEJ Trans. Electrical and Electronic Engineering, Vol. 13, No. 5, 791-798, May 2018.
doi:10.1002/tee.22631 Google Scholar

16. Wang, Q. S., S. X. Niu, and Y. Lin, "Design optimization and comparative study of novel dual-PM excited machines," IEEE Trans. Ind. Electron., Vol. 64, No. 12, 9924-9933, Dec. 2017.
doi:10.1109/TIE.2017.2716869 Google Scholar

17. Sheng, T. T. and S. X. Niu, "Design of doubly complementary stator-PM machine with high magnet utilization factor for low-cost applications," IEEE Trans. Energy Convers., Vol. 33, No. 2, 567-575, Jun. 2018.
doi:10.1109/TEC.2017.2765465 Google Scholar

18. Bianchi, N., M. Dai Pre, and Luigi, "Theory and design of fractional-slot PM machines," CLEUP, Padova, Italy, Sep. 2007. Google Scholar

19. Xu, Y., F. Wang, and K. Feng, "Analysis of inductance, permanent magnet EMF and slot torque ripple of dual-rotor permanent magnet machine," Transactions of China Electro-technical Society, Vol. 22, No. 9, 40-44, Sep. 2007. Google Scholar

20. Chen, Y., P. Pillay, and A. Khan, "PM wind generator comparison of different topologies," 39th IAS Annual Meeting, Conference Record of the 2004 IEEE, Vol. 3, 1405-1412, 2004. Google Scholar

21. Zhang, F. G., J. H. Chen, and G. W. Liu, "Influence of stator fastener for permanent magnet machine with anti-rotation dual rotors," Journal of Zhejiang University, Vol. 45, No. 5, 804-808, May 2011. Google Scholar

Dr. Libing Jing

Dr. Jia Cheng

Dr. Qixing Gao

Dr. Ting Zhang

Dr. Ying Lin