The Research on Suppression Strategies for Electromagnetic Torque Ripples of Brushless DC Motors

Lian Jun Hu; Xiao Hui Zeng; Hong Song; Xiao Long Huang; Ming Liu

doi:10.4028/www.scientific.net/AMR.910.327

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 910The Research on Suppression Strategies for...

The Research on Suppression Strategies for Electromagnetic Torque Ripples of Brushless DC Motors

Abstract:

Despite of its remarkable active performances, brushless DC motors, which are widely used in mechanical engineering, have an obvious disadvantage in its high electromagnetic torque ripples. In the paper, a ripple suppression method based on predictive controls of stator currents is proposed according to analysis of causes electromagnetic torque ripples generate in commutation periods of brushless DC motors. First of all, a relative accurate prediction is acquired through DC motor on-line parameter corrections based on generalized predictive control algorithms. Then rolling optimizations make tracking errors and control qualities optimized for best control effects. And finally, minimum electromagnetic torque ripples are achieved. The simulation results show that torque ripples can be suppressed effectively with improved reliabilities by using the method proposed.

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Periodical:

Advanced Materials Research (Volume 910)

Pages:

327-331

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.910.327

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Online since:

March 2014

Authors:

Lian Jun Hu*, Xiao Hui Zeng, Hong Song, Xiao Long Huang, Ming Liu

Keywords:

Brushless Dc Motor (BLDCM), Phase Current, Predictive Control, Torque Ripples

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* - Corresponding Author

References

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