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Volume 22 Issue 3
 
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Article Navigation >  Journal of Unmanned Undersea Systems  > 2014  >  22(3): 194-199
WANG Song-lin, XIE Shun-yin, ZHANG Lin-sen. Torque Ripple Inhibition of Brushless DC Motor by DTC[J]. Journal of Unmanned Undersea Systems, 2014, 22(3): 194-199. doi: 10.11993/j.issn.1673-1948.2014.03.008
Citation: WANG Song-lin, XIE Shun-yin, ZHANG Lin-sen. Torque Ripple Inhibition of Brushless DC Motor by DTC[J]. Journal of Unmanned Undersea Systems, 2014, 22(3): 194-199. doi: 10.11993/j.issn.1673-1948.2014.03.008
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Torque Ripple Inhibition of Brushless DC Motor by DTC

doi: 10.11993/j.issn.1673-1948.2014.03.008

  • Department of Weaponry Engineering, Naval University of Engineering, Wuhan 430033, China

  • Received Date: 2014-03-11
  • Publish Date: 2014-06-20
    Abstract
  • To minimize torque ripple and improve dynamic performance of brushless DC motor(BLDCM), the direct torque control(DTC) is applied to the BLDCM drive system. Based on the analysis of the pulse width modulation(PWM) current control, this paper researches into the torque ripple inhibition with DTC method, where the torque ripple is pro-duced by both non-ideal back electromotive force (back-EMF) and current commutation. According to the characteristics of the BLDCM in two-phase conducting mode, a BLDCM-DTC drive system with and without stator flux control is established. Simulation and experimental results prove that the system makes effective control on torque and current, and gains better inhibition of torque ripple and faster dynamic response of the BLDCM, compared with conventional PWM current control.

     

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