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An ultra-high-speed motor driver with hybrid modulations

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Abstract

An ultra-high-speed motor driver with hybrid modulations is proposed in this paper. The speed range of a spindle motor is wider and trends to ultra-high, but the traditional driver which provides either sinusoidal pulse width modulation or six-step modulation could not support so wide speed range. Normally, the variable voltage variable frequency control is used to support different type motors, then, sinusoidal pulse width modulation (SPWM) is chosen in low speed range drivers and six-step is picked in high-speed application. In this paper, the hybrid modulation driver with adjustable DC bus voltage is proposed, and the modulation could be selected for different motor and speed by users. For lower switching power loss, the six-step modulation is better when ultra-high-speed application. For low speed range, the trapezoidal pulse width modulation is used to replace the SPWM for the reduction of switching power loss. The experimental results show the performance of proposed driver.

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Acknowledgments

This project is sponsored in part by the National Science Council, ROC, under contract No. NSC 101-2221-E-224-099 and NSC 102-2221-E-224-028.

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Authors and Affiliations

  1. Department of Electrical Engineering, National Yunlin University of Science and Technology, Yunlin, Taiwan, ROC

    Chung-Wen Hung

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  1. Chung-Wen Hung
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Correspondence to Chung-Wen Hung.

Additional information

This work was presented in part at the 18th International Symposium on Artificial Life and Robotics, Daejeon, Korea, January 30#February 1, 2013.

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Hung, CW. An ultra-high-speed motor driver with hybrid modulations. Artif Life Robotics 18, 70–75 (2013). https://doi.org/10.1007/s10015-013-0101-5

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  • DOI: https://doi.org/10.1007/s10015-013-0101-5

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