Torque Ripple Minimization of a Switched Reluctance Motor using a Torque Sharing Function based on the Overlap Control Technique
The torque ripple produced in a switched reluctance motor (SRM) can be seen as one of its major drawbacks. It occurs mainly due to the sequential switching of the motor phases and changes in the length of the air gap. The torque sharing functions (TSFs) are the more effective and favorable techniques developed to reduce the torque ripple in SRMs. However, the time responses of instantaneous torque for incoming and outgoing phases during commutation period (CP) are different. In addition, with increasing motor speed the CP decreases and the torque response of the outgoing phase oversteps it. In this paper, a modified torque sharing function based on the change of the overlap angle during the commutation process depending on the motor speed is presented. In the designed control algorithm of the TSFs, the motor speed is has become an input besides the rotor position and the torque command. The commutation time is precisely adjusted enough for the commutating process. The proposed method gives good results in a wide speed range. To deduce the magnetic characteristics of the SRM, finite element analysis (FEA) is applied and a look-up table model is derived. The effectiveness and robustness of the proposed control technique are exhibited in the simulation results.
Keywords:switched reluctance motor, torque ripple minimization, torque sharing function (TSF), commutation period (CP)
I. Husain, S. A. Hossain, “Modeling, simulation, and control of switched reluctance motor drives”, IEEE Transactions on Industrial Electronics, Vol. 52, No. 6, pp. 1625–1634, 2005 DOI: https://doi.org/10.1109/TIE.2005.858710
A. Mansouri, T. Hafedh, “Torque ripple minimization and performance investigation of an in-wheel permanent magnet motor”, Engineering, Technology & Applied Science Research, Vol. 6, No. 3, pp. 987-992, 2016 DOI: https://doi.org/10.48084/etasr.644
E. Cetin, F. Daldaban, “Reducing torque ripples of the axial flux PM motors by magnet stepping and shifting”, Engineering, Technology & Applied Science Research, Vol. 8, No. 1, pp. 2385-2388, 2018 DOI: https://doi.org/10.48084/etasr.1700
I. Husain, M. Ehsani, “Torque ripple minimization in switched reluctance motor drives by PWM current control”, IEEE Transactions on Power Electronics, Vol. 11, No. 1, pp. 83-88, 1996 DOI: https://doi.org/10.1109/63.484420
A. Xu, C. Shang, J. Chen, J. Zhu, L. Han, “A new control method based on DTC and MPC to reduce torque ripple in SRM”, IEEE Access, Vol. 7, pp. 68584-68593, 2019 DOI: https://doi.org/10.1109/ACCESS.2019.2917317
R. Suryadevara, B. G. Fernandes, “Control techniques for torque ripple minimization in switched reluctance motor: An overview”, IEEE 8th International Conference on Industrial and Information Systems, Peradeniya, Sri Lanka, August 18-20, 2013 DOI: https://doi.org/10.1109/ICIInfS.2013.6731949
X. Gao, X. Wang, Z. Li, Y. Zhou, “A review of torque ripple control strategies of switched reluctance motor”, International Journal of Control and Automation, Vol. 8, No. 4, pp. 103-116, 2015 DOI: https://doi.org/10.14257/ijca.2015.8.4.13
E. Gouda, M. Hamouda, A. R. A. Amin, “Artificial intelligence based torque ripple minimization of switched reluctance motor drives”, 18th International Middle East Power Systems Conference, Cairo, Egypt, December 27-29, 2016 DOI: https://doi.org/10.1109/MEPCON.2016.7837010
F. Sahin, H. B. Ertan, K. Leblebicioglu, “Optimum geometry for torque ripple minimization of switched reluctance motors”, IEEE Transactions on Energy Conversion, Vol. 15, No. 1, pp. 30-39, 2000 DOI: https://doi.org/10.1109/60.849113
H. Terzioglu, S. Herdem, B. A. L. Gungor, “The minimization of torque ripples of segmental type switched reluctance motor by Particle Swarm Optimization”, International Journal of Intelligent Systems and Applications in Engineering, Special Issue, pp. 199-203, 2016 DOI: https://doi.org/10.18201/ijisae.2017SpecialIssue-146974
H. Li, B. Bilgin, A. Emadi, “An improved torque sharing function for torque ripple reduction in switched reluctance machines”, IEEE Transactions on Power Electronics, Vol. 34 , No. 2, pp. 1635–1644, 2019 DOI: https://doi.org/10.1109/TPEL.2018.2835773
J. Ye, B. Bilgin, A. Emadi, “An offline torque sharing function for torque ripple reduction in switched reluctance motor drives”, IEEE Transactions on Energy Conversion, Vol. 30, No. 2, pp. 726-735, 2015 DOI: https://doi.org/10.1109/TEC.2014.2383991
W. Peng, J. Gyselinc, J. W. Ahn, D. H. Lee, “Torque sharing function control of switched reluctance machines without phase current sensors”, 21st International Conference on Electrical Machines and Systems, Jeju, S. Korea, October 7-10, 2018 DOI: https://doi.org/10.23919/ICEMS.2018.8549037
X. D. Xue, K. W. E. Cheng, S. L. Ho, “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, pp. 2076-2090, 2009 DOI: https://doi.org/10.1109/TPEL.2009.2019581
Q. Sun, J. Wu, C. Gan, M. Shen, Y. Hu, “Investigation of direct torque control and torque sharing function strategy for switched reluctance motor applications”, 18th International Conference on Electric Machines and Machines, Pattaya City, Thailand, October 25-28, 2015 DOI: https://doi.org/10.1109/ICEMS.2015.7385156
Q. Sun, J. Wu, C. Gan, Y. Hu, J. Si, “OCTSF for torque ripple minimisation in SRMs”, IET Power Electronics, Vol. 9, No. 14, pp. 2741–2750, 2016 DOI: https://doi.org/10.1049/iet-pel.2016.0270
M. Hamouda, Q. Shafi Ullah, L. Szamel, “Compensation of switched reluctance motor torque ripple based on TSF strategy for electric vehicle applications”, 4th International Conference on Power Generation Systems and Renewable Energy Technologies, Islamabad, Pakistan, September 10-12, 2018 DOI: https://doi.org/10.1109/PGSRET.2018.8686003
R. Harikrishnan, F. M. Fernandez, “Improved online torque-sharing-function based low ripple torque control of switched reluctance motor drives”, IEEE International Conference on Power Electronics, Drives and Energy Systems, Trivandrum, India, December 14-17, 2016 DOI: https://doi.org/10.1109/PEDES.2016.7914374
L. O. A. P. Henriques, L. G. B. Rolim, W. I. Suemitsu, P. J. C. Branco, J. A. Dente, “Torque ripple minimization in a switched reluctance drive by neuro-fuzzy compensation”, IEEE Transactions on Magnetics, Vol. 36, No. 5, pp. 3592–3594, 2000 DOI: https://doi.org/10.1109/20.908911
M. Dowlatshahi, S. M. S. Nejad, J. W. Ahn, “Torque ripple minimization of switched reluctance motor using modified torque sharing function”, 21st Iranian Conference on Electrical Engineering, Mashhad, Iran, May, 14-16, 2013 DOI: https://doi.org/10.1109/IranianCEE.2013.6599580
T. Husain, A. Elrayyah, Y. Sozer, I. Husain, “Unified control for switched reluctance motors for wide speed operation”, IEEE Transactions on Industrial Electronics, Vol. 66, No. 5, pp. 3401-3411, 2019 DOI: https://doi.org/10.1109/TIE.2018.2849993
H. S. Ro, K. G. Lee, J. S. Lee, H. G. Jeong, 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. 9, No. 2, pp. 742-750, 2016
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