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Volume 21 Issue 2
 
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Article Navigation >  Journal of Unmanned Undersea Systems  > 2013  >  21(2): 137-140
DU Jun, ZHANG Lin-sen, ZHAO Jun. An Improved Starting Method of Contra-rotating Brushless DC Motor Using Voltage Pulses Injection[J]. Journal of Unmanned Undersea Systems, 2013, 21(2): 137-140. doi: 10.11993/j.issn.1673-1948.2013.02.012
Citation: DU Jun, ZHANG Lin-sen, ZHAO Jun. An Improved Starting Method of Contra-rotating Brushless DC Motor Using Voltage Pulses Injection[J]. Journal of Unmanned Undersea Systems, 2013, 21(2): 137-140. doi: 10.11993/j.issn.1673-1948.2013.02.012
shu

An Improved Starting Method of Contra-rotating Brushless DC Motor Using Voltage Pulses Injection

doi: 10.11993/j.issn.1673-1948.2013.02.012
  • 1.

    Naval Armament Department, Beijing 100841, China

  • 2.

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

  • Received Date: 2012-06-12
  • Rev Recd Date: 2012-08-03
  • Publish Date: 2013-04-20
    Abstract
  • An improved starting method is proposed to solve the problem that brushless DC motor cannot self-start under the sensorless control strategy of back electromotive force(EMF) method. The salient polarity of the permanent magnet rotor is utilized for contra-rotating brushless DC motor. In the proposed method, voltage pulses are injected to arma-ture-rotor of the motor, and the corresponding current response are sampled for estimating the angle of rotor position, so two rotors of the contra-rotating brushless DC motor can be positioned, started and then accelerated. The effectiveness of the proposed method is validated experimentally.

     

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    • References(6)
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