Title page for etd-0805116-180459


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URN etd-0805116-180459
Author Yan-Han Chen
Author's Email Address No Public.
Statistics This thesis had been viewed 5350 times. Download 970 times.
Department Electrical Engineering
Year 2015
Semester 2
Degree Master
Type of Document
Language zh-TW.Big5 Chinese
Title XY Table Motion Control by Using Cross Coupling Law
Date of Defense 2016-07-27
Page Count 87
Keyword
  • disturbance observer
  • cross-coupling control
  • motion control card
  • circular interpolation
  • Abstract The goal of this work is to improve the curves and graphs scheduled by conventional CNC machines. In high-resolution machining applications, enormous amount of interpolation commands are generated. Massive machining routes causes memory overflow. In this thesis, the motion trajectory and control theory are discussed and applied to motion control card to reduce the loading of the memory. Different from the conventional design method, which uses straight lines to approach a circular arc, a new design method using circular interpolation and elliptical interpolation based on the interpolation architecture on the motion control chip is proposed in this thesis to reduce the errors in trajectory scheduling for arbitrary curves as well as to lower the memory requirement.
      Using MATLAB, it is verified that the proposed circular and elliptical interpolations improve the accuracy of the trajectory. Furthermore, the errors are reduced using cross-coupling control, making the generated circle more closely resembles the commanded circle. The anti-disturbance capability of the disturbance observer is separately discussed. Finally, using the motion control table of our lab, commands are made to draw graphs and let the motion control card implement circular and linear interpolations.
    Advisory Committee
  • Shih-Wei Kau - chair
  • Shiang-Hwua Yu - co-chair
  • Li Lee - advisor
  • Files
  • etd-0805116-180459.pdf
  • Indicate in-campus at 1 year and off-campus access at 1 year.
    Date of Submission 2016-09-05

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