Volume 39 Issue 3
Mar.  2013
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Niu Guochen, Wang Wei, Wei Zhiqiang, et al. Torque control based on torque feedforward and rudder angle compensation[J]. Journal of Beijing University of Aeronautics and Astronautics, 2013, 39(3): 300-304. (in Chinese)
Citation: Niu Guochen, Wang Wei, Wei Zhiqiang, et al. Torque control based on torque feedforward and rudder angle compensation[J]. Journal of Beijing University of Aeronautics and Astronautics, 2013, 39(3): 300-304. (in Chinese)

Torque control based on torque feedforward and rudder angle compensation

  • Received Date: 15 Feb 2012
  • Publish Date: 31 Mar 2013
  • In order to provide precise load torque for testing the stiffness of rudder systems, a torque control system with the characteristics of high accuracy and large scale combining torque feedforward and rudder angle compensation was designed. The mathematical models of torque motor, torque motor driver and spring beam were established. Performance of loading torque was influenced obviously by the stiffness coefficient of spring beam, which was analyzed from load target, frequency width and system stability. Because continuous oscillation and large phase lag appear while torque loop controller was adopted, torque feedforward and rudder angle compensation were induced based on invariance theory. The experiment results prove that torque oscillation and phase lag can be suppressed effectively using the approach, and successful completion of stiffness test is ensured.

     

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