Precise tracking control of piezoelectric actuators based on a hysteresis observer
| Autor: | Ju H. Park, D. H. Ji, W. J. Yoo, J. H. Koo |
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| Rok vydání: | 2012 |
| Předmět: |
Computer simulation
Observer (quantum physics) Computer science Applied Mathematics Mechanical Engineering Control (management) Work (physics) Feed forward Aerospace Engineering Ocean Engineering Control engineering Tracking (particle physics) Computer Science::Other Hysteresis Control and Systems Engineering Control theory State observer Electrical and Electronic Engineering |
| Zdroj: | Nonlinear Dynamics. 70:1969-1976 |
| ISSN: | 1573-269X 0924-090X |
| Popis: | In this paper, a precise tracking control method for piezoelectric actuators based on a hysteresis observer is considered. A nonlinear observer to estimate the hysteretic nonlinearity in the piezoelectric actuator is designed, and then the hysteretic nonlinearity is compensated for by a feedforward control. The proposed observer is easy to design and has better performance compared to the previous work presented in the literature. A feedback controller is also designed to track reference signals. A numerical simulation is presented to verify the method proposed. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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