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9997811
Comparative Analysis of DTC Based Switched Reluctance Motor Drive Using Torque Equation and FEA Models
Abstract:

Since torque ripple is the main cause of noise and vibrations, the performance of Switched Reluctance Motor (SRM) can be improved by minimizing its torque ripple using a novel control technique called Direct Torque Control (DTC). In DTC technique, torque is controlled directly through control of magnitude of the flux and change in speed of the stator flux vector. The flux and torque are maintained within set hysteresis bands.

The DTC of SRM is analyzed by two methods. In one method, the actual torque is computed by conducting Finite Element Analysis (FEA) on the design specifications of the motor. In the other method, the torque is computed by Simplified Torque Equation. The variation of peak current, average current, torque ripple and speed settling time with Simplified Torque Equation model is compared with FEA based model.

Digital Object Identifier (DOI):

References:

[1] T. J. E. Miller, "Switched Reluctance Motors and their Control”, Magna Physics &Oxford, 1993.
[2] Rik De Doncker, Duco W.J.Pulle and Andre Veltman, "Advanced Electrical Drives: Analysis, Modeling and Control,” Springer, 2011
[3] P. Jinupun and P. C. K. Luk, "Direct torque control for sensorless switched reluctance motor drives,” in Proc. 7th Int. Conf. Power Electronics & Variable Speed Drives, 1998, pp. 329–334.
[4] A. D. Cheok and P. H. Hoon, "A new torque control method for switched reluctance motor drives,” in 26th Annual Conf. IEEE Industrial Electronics Society, IECON 2000, Oct. 2000, pp.387–392.
[5] A. D. Cheok and Y. Fukuda, "A new torque and flux control method for switched reluctance motor drives,” IEEE Trans. Power Electronics, vol. 17, no. 4, pp. 543–557, Jul. 2002.
[6] H. J. Guo, "Considerations of direct torque control for switched reluctance motors,” in Proc. IEEE Int. Symposium on Industrial Electronics, ISIE 2006, Jul. 2006, pp.2321–2325.
[7] Guiying Song, Zhida Li, Zhenghan Zhao and Xiang Wang, "Direct torque control of switched reluctance motors,” in Proc. IEEE Int. Conf. Electrical Machines and Systems, ICEMS 2008, Oct. 2008, pp. 3389-3392.
[8] R. Jeyabharath, P. Veena, and M. Rajaram, "A Novel DTC strategy of torque and flux control for switched reluctance motor drive,” in Proc. IEEE Int. Conf. Power Electronics, Drives and Energy Systems, PEDES, December 2006, pp. 1–5.
[9] B. H. Jeong, K. Y. Lee, J. D. Na, G. B. Cho and H. L. Baek , "Direct torque control for the 4-phase switched reluctance motor drives,” in Proc. IEEE Int. Conf. Electrical Machines and Systems, ICEMS, September 2005, pp. 524-528.
[10] P. Srinivas, P. V. N. Prasad, "Direct torque control of 4 phase 8/6 switched reluctance motor drive for constant torque load,” World Journal of Modeling and Simulation (WJMS) , vol. 8, no.3, pp 185-195, 2012.
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