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Acoustic Noise Reduction in Single Phase SRM Drives by Random Switching Technique

Authors: Minh-Khai Nguyen, Young-Gook Jung, Young-Cheol Lim


It is known that if harmonic spectra are decreased, then acoustic noise also decreased. Hence, this paper deals with a new random switching strategy using DSP TMS320F2812 to decrease the harmonics spectra of single phase switched reluctance motor. The proposed method which combines random turn-on, turn-off angle technique and random pulse width modulation technique is shown. A harmonic spread factor (HSF) is used to evaluate the random modulation scheme. In order to confirm the effectiveness of the new method, the experimental results show that the harmonic intensity of output voltage for the proposed method is better than that for conventional methods.

Keywords: Single phase switched reluctance motor (SRM), harmonic spread factor (HSF), random switching technique

Digital Object Identifier (DOI):

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[1] D. E. Cameron, J. H. Lang, and S. D. Umans, "The origin and reduction of acoustic noise in doubly salient variable-reluctance motors," IEEE Trans. Ind. Applicat., 1992, pp. 1250-1255.
[2] D. E. Cameron, J. H. Lang, and S. D. Umans, "The origin of acoustic noise in variable-reluctance motors," IEEE Industry Applications Society, IAS-89, 1989, pp. 89-98.
[3] F. Blaabjerg, and J. K. Pedersen, "Digital implemented random modulation strategies for ac and switched reluctance drives," The Annual Conference of the IEEE Industrial Electronics Society, IECON'93, 1993, pp.676-682.
[4] C. Pollock, and C. Y. Wu, "Acoustic noise cancellation technique for switched reluctance drives," IEEE Trans. Ind. Applicat., Mar./Apr. 1997, pp. 477-484,.
[5] B. Fahimi, G. Suresh, K. M. Rahman, and M. Ehsani, "Mitigation of acoustic noise and vibration in switched reluctance motor drive using neural network based current profiling," in Conf. Rec. IEEE-ISA Annu. Meeting, 1998, pp.715-722.
[6] Y. G. Jung, S. H. Na, Y. C. Lim, and S. H. Yang, "Reduction of audible switching noise in induction motor drives using random position PWM," IEE Proc. Electr. Power Appl, May 2002, pp.195-202.
[7] K. S. Kim, Y. G. Jung, and Y. C. Lim, "Shaping the spectra of the acoustic noise emitted by three-phase inverter drivers based on the new hybrid random PWM technique," in Conf. Rec. of IEEE Power Electronics Specialist Conference, PESC-06, 2006, pp.545-550.
[8] R. L. Kirlin, M. M. Bech, A. M. Trzynadlowski, and B. Huo, "Power and power spectral density in pwm inverters with randomized switching frequency," IEEE Power Electronics Specialist Conference, PESC-01, 2001, pp. 188-192.