RESEARCH ON ADAPTIVE SLIDING MODE CONTROL FOR PIEZOELECTRIC POSITIONING SYSTEM
Journal Title: Topics in Intelligent Computing and Industry Design (ICID) - Year 2017, Vol 1, Issue 2
Abstract
It is difficult to obtain the accurate mathematical model of the controlled object for the hysteresis nonlinearity of the piezoelectric actuator. An adaptive sliding mode control strategy based on switching gain and boundary layer thickness is proposed. The chattering phenomenon is reduced, and the tracking accuracy is guaranteed, and it has good robustness to external disturbance. The stability of the whole closed-loop system is proved by the Lyapunov criterion, and the control method is simple and reliable. Simulation results show the effectiveness of the proposed algorithm.
Authors and Affiliations
Yang Gui-hua, Zhong Zhi-xian, Liang Yu
Keywords
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- EP ID EP409790
- DOI 10.26480/wsmce.01.2017.76.78
- Views 89
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