volume | PIER Journals

Abstract

Aiming at the problems of conventional torque sharing function (TSF) control method, such as large torque ripple, high peak current and high copper loss, a non-unity TSF control method with adaptive overlapping angle is proposed. Firstly, on the basis of explaining the conventional TSF control logic, according to the characteristics of inductance, the conduction region is re-divided, and the two-phase exchange region is subdivided into region 1 and region 2, which together with the single-phase conduction region form three regions in the winding conduction region. A non-unity TSF is designed in each region, which conforms to the torque variation trend. Then, an adaptive overlapping angle algorithm is designed, which can automatically adjust the overlapping angle under different speeds and load torques. Finally, taking a three-phase 6/20-pole switched reluctance motor as the control object, the simulation and experimental verification show that the control method can restrain torque ripple and reduce peak current and copper loss at the same time.

1. Boldea, I., L. N. Tutelea, L. Parsa, and D. Dorrell, "Automotive electric propulsion systems with reduced or no permanent magnets: An overview," IEEE Transactions on Industrial Electronics, Vol. 61, No. 10, 5696-5711, 2014.
doi:10.1109/TIE.2014.2301754 Google Scholar

2. Omac, Z., M. Polat, E. Oksuztepe, M. Yildirim, O. Yakut, H. Eren, M. Kaya, and H. Kurum, "Design, analysis, and control of in-wheel switched reluctance motor for electric vehicles," Electrical Engineering, Vol. 100, No. 2, 865-876, 2018.
doi:10.1007/s00202-017-0541-3 Google Scholar

3. Santiago, J. D., H. Bernhoff, B. Ekergard, S. Eriksson, S. Ferhatovic, R. Waters, and M. Leijon, "Electrical motor drivelines in commercial all-electric vehicles: A review," IEEE Transactions on Vehicular Technology, Vol. 61, No. 2, 475-484, 2012.
doi:10.1109/TVT.2011.2177873 Google Scholar

4. De Paula, M. V., T. A. Barros, H. S. Moreira, et al. "A dahlin cruise control design method for switched reluctance motors with minimum torque ripple point tracking applied in electric vehicles," IEEE Transactions on Transportation Electrification, Vol. 7, No. 2, 730-740, 2021.
doi:10.1109/TTE.2020.3019997 Google Scholar

5. Vaibhav, S. and P. Saifullah, "An integrated driving/charging four-phase switched reluctance motor drive with reduced current sensors for electric vehicle application," IEEE Journal of Emerging and Selected Topics In Power Electronics, Vol. 10, No. 6, 6880-6890, 2022.
doi:10.1109/JESTPE.2021.3120468 Google Scholar

6. Cheok, A. D. and Y. Fukuda, "A new torque and flux control method for switched reluctance motor drives," IEEE Transactions on Power Electronics, Vol. 17, No. 4, 543-557, 2002.
doi:10.1109/TPEL.2002.800968 Google Scholar

7. Yan, N., X. Cao, and Z. Deng, "Direct torque control for switched reluctance motor to obtain high torque-ampere ratio," IEEE Transactions on Industrial Electronics, Vol. 66, No. 7, 5144-5152, 2019.
doi:10.1109/TIE.2018.2870355 Google Scholar

8. Chen, X., Z. Zhang, L. Yu, and Z. Bian, "An improved direct instantaneous torque control of doubly salient electromagnetic machine for torque ripple reduction," IEEE Transactions on Industrial Electronics, Vol. 68, No. 8, 6481-6492, 2021.
doi:10.1109/TIE.2020.3003596 Google Scholar

9. Tao, T., S. Gan, J.Wang, X. Song, J. Zhang, and Z. Sun, "Angle position control of fuzzy algorithm with variable scale factor for SRM," ICIC Express Letters, No. 4, 789-797, 2017. Google Scholar

10. Yang, D. H. Y., D. Zhao, and Y. X. Jiang, "A research for angle optimization of the SRM used in electric actuator of valves," Applied Mechanics and Materials, 586-591, 2013. Google Scholar

11. Blaabjerg, F., P. C. Kjaer, P. O. Rasmussen, and C. Cossar, "Improved digital current control methods in switched reluctance motor drives," IEEE Transactions on Power Electronics, Vol. 14, No. 3, 563-572, 1999.
doi:10.1109/63.761700 Google Scholar

12. Cai, J.-L. and R.-J. Jin, "Reversible drive system of switched reluctance motor based on DSP controller," Zhejiang Daxue Xuebao (Gongxue Ban)/Journal of Zhejiang University (Engineering Science), No. 6, 1019-1026, 2006. Google Scholar

13. Mohamed, Y. A. R. I. and E. F. El-Saadany Robust, "High bandwidth discrete-time predictive current control with predictive internal model --- A unified approach for voltage-source PWM converters," IEEE Transactions on Power Electronics, Vol. 23, No. 1, 126-136, 2008.
doi:10.1109/TPEL.2007.911797 Google Scholar

14. Peng, F., J. Ye, and A. Emadi, "A digital PWM current controller for switched reluctance motor drives," IEEE Transactions on Power Electronics, Vol. 31, No. 10, 7087-7098, 2016. Google Scholar

15. Schulz, S. E. and K. M. Rahman, "High-performance digital PI current regulator for EV switched reluctance motor drives," IEEE Transactions on Industry Applications, Vol. 39, No. 4, 1118-1126, 2003.
doi:10.1109/TIA.2003.814580 Google Scholar

16. Xue, X. D., K. W. E. Cheng, S. L. Ho, and , "Optimization and evaluation of torque-sharing functions for torque ripple minimization in switched reluctance motor drives," IEEE Transactions on Power Electronics, Vol. 24, No. 9, 2076-2090, 2009.
doi:10.1109/TPEL.2009.2019581 Google Scholar

17. Ling, X., C. Zhou, L. Yang, and J. Zhang, "Torque ripple suppression method of switched reluctance motor based on an improved torque distribution function," Applied Sciences, Vol. 11, No. 10, 136-152, 2022. Google Scholar

18. Li, H., B. Bilgin, and A. Emadi, "An improved torque sharing function for torque ripple reduction in switched reluctance machines," IEEE Transactions on Power Electronics, Vol. 34, No. 2, 1635-1644, 2019.
doi:10.1109/TPEL.2018.2835773 Google Scholar

19. Yang, Y., A. Xu, B. Leng, J. Sun, and K. Li, "Torque compensation method of switched reluctance motor adopting MPC based on TSF-DITC," Progress In Electromagnetics Research M, Vol. 110, 211-221, 2022.
doi:10.2528/PIERM22040803 Google Scholar

20. Sun, Q., J. Wu, C. Gan, Y. Hu, and J. Si, "OCTSF for torque ripple minimisation in SRMs," IET Power Electronics, Vol. 14, 2741-2750, 2016.
doi:10.1049/iet-pel.2016.0270 Google Scholar

21. Fei, C., J. Yan, P. Wang, and Z. Yan, "Torque ripple suppression of switched reluctance motor based on modified torque sharing function," Diangong Jishu Xuebao/Transactions of China Electrotechnical Society, Vol. 33, 394-400, 2018. Google Scholar

22. Ro, H. S., K. G. Lee, J. S. Lee, H. G. Jeong, and K. B. Lee, "Torque ripple minimization scheme using torque sharing function based fuzzy logic control for a switched reluctance motor," Journal of Electrical Engineering & Technology, Vol. 10, No. 1, 118-127, 2015.
doi:10.5370/JEET.2015.10.1.118 Google Scholar

Dr. Chaozhi Huang

Mr. Wensheng Cao

Dr. Yanwen Sun

Dr. Zhou Chen

Dr. Wenjin Zhang