Volume 39 Issue 10
Oct.  2013
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Yu Juntao, Jiao Zongxia, Wu Shuaiet al. Modeling and control simulation of PZT-DDV using hydraulic amplification[J]. Journal of Beijing University of Aeronautics and Astronautics, 2013, 39(10): 1354-1359. (in Chinese)
Citation: Yu Juntao, Jiao Zongxia, Wu Shuaiet al. Modeling and control simulation of PZT-DDV using hydraulic amplification[J]. Journal of Beijing University of Aeronautics and Astronautics, 2013, 39(10): 1354-1359. (in Chinese)

Modeling and control simulation of PZT-DDV using hydraulic amplification

  • Received Date: 12 Dec 2012
  • Publish Date: 30 Oct 2013
  • A servo valve direct driven by piezoelectric actuator (PZT-DDV) using hydraulic amplification was researched. It takes advantage of the higher bandwidth and larger flow rate. The actuary model was built. The characteristic of PZT-DDV was investigated based on the co-simulation environment of AMESim and Simulink. By using AMESim the PZT-DDV nonlinear model and hydraulic environment have been set up. By using Simulink the digital controller model had been set up. LuGre friction model was used to estimate the friction force, feed forward and adaptive back stepping control was investigated to improve the hysteresis, friction and load sensitive characteristic of PZT-DDV. The simulation results demonstrate that the steady precision can be improved by the adaptive back stepping control and the dynamic performances can be improved by the feed forward control.

     

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