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Proceedings Paper

Application of combined controller based on CMAC and nonlinear PID in dual redundant telescope tracking system
Author(s): Heng Li; Changzhi Ren; Libin Song; Jun Wu
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Paper Abstract

The direct drive tracking system of Telescope is one multivariable, nonlinear and strong coupling complex mechanical control system which is disturbed by some nonlinear disturbance such torque ripple, wind disturbance during the tracking process. the traditional PID control cannot fundamentally solved the contradiction between static and dynamic performance, tracking data and disturbance .This paper explores a kind of CMAC with nonlinear PID parallel composite control method for dual redundant telescope tracing servo system. The simulation result proves that combined algorithm based on CMAC and PID realizes the servo system without overshoot and accelerates the response of the system. What’s more, CMAC feedforward control improves anti-disturbance ability and the control precision of the servo system.

Paper Details

Date Published: 18 July 2014
PDF: 8 pages
Proc. SPIE 9152, Software and Cyberinfrastructure for Astronomy III, 91521V (18 July 2014); doi: 10.1117/12.2055106
Show Author Affiliations
Heng Li, National Astronomical Observatories, Nanjing Institute of Astronomical Optics and Technology (China)
Graduate Univ. of Chinese Academy of Sciences (China)
Changzhi Ren, National Astronomical Observatories, Nanjing Institute of Astronomical Optics and Technology (China)
Libin Song, Tsinghua Univ. (China)
Jun Wu, National Astronomical Observatories, Nanjing Institute of Astronomical Optics and Technology (China)


Published in SPIE Proceedings Vol. 9152:
Software and Cyberinfrastructure for Astronomy III
Gianluca Chiozzi; Nicole M. Radziwill, Editor(s)

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