• Optics and Precision Engineering
  • Vol. 18, Issue 10, 2212 (2010)
SONG Yan1,2,*, GAO Hui-bin1, ZHANG Shu-mei1, DU Bi-xiu1, and GUO Tong-jian1
Author Affiliations
  • 1[in Chinese]
  • 2[in Chinese]
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    DOI: Cite this Article
    SONG Yan, GAO Hui-bin, ZHANG Shu-mei, DU Bi-xiu, GUO Tong-jian. Adaptive compensation of torque ripple in DC torque motor[J]. Optics and Precision Engineering, 2010, 18(10): 2212 Copy Citation Text show less

    Abstract

    An adaptive control and compensation scheme is proposed in this paper to solve the problem on torque ripples caused by the velocity fluctuation in a DC torque motor. Firstly, a mechanism for torque ripple is found out acoording to the analysis of DC motor’s structure. Then, the mathematical model is established and a robust adaptive control strategy is designed. The control algorithm is contained by two parts: one is a a lead-lag feedback controller for verifying the stability and the robustness of the system nominally;and the other is an adaptive compensator, which is used to compensate the torque ripple adaptively through a recursive least square identification. The experimental results show that the peak-peak value and the RMS value of velocity fluctuation obtained by the proposed method been reduced to 1.77% and 0.39% respectively as compared with two indexes of 4.21% and 0.97% obtained only by the lead-lag feedback controller. The conclusion is that proposed adaptive compensation method can depress the velocity fluctuation caused by motor torque ripple efficiently.
    SONG Yan, GAO Hui-bin, ZHANG Shu-mei, DU Bi-xiu, GUO Tong-jian. Adaptive compensation of torque ripple in DC torque motor[J]. Optics and Precision Engineering, 2010, 18(10): 2212
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