Tracking of a pizeo-actuated system using function approximation and feedforward compensation techniques
| Autor: | Hung-Chun Lin, 林宏駿 |
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| Rok vydání: | 2009 |
| Druh dokumentu: | 學位論文 ; thesis |
| Popis: | 97 This paper studies tracking-control problem of a piezo-actuated system. By means of feedforward, inverse-hysteresis cancellation, tracking performances of the system can be improved. To implement the feedforward cancellation, nonlinear hysteretic behaviors of the system are estimated using observer, the Fourier-based and Haar-based function-approximation technique. These estimated results are used for the design of the inverse-hysteresis compensator which in turn is integrated with a PI feedback control. The proposed controllers are applied to an experimental system to verify their reliabilities. |
| Databáze: | Networked Digital Library of Theses & Dissertations |
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