LAI Zhi-lin, LIU Xiang-dong, GENG Jie, LI Li. Sliding mode control of hysteresis of piezoceramic actuator based on inverse Preisach compensation[J]. Editorial Office of Optics and Precision Engineering, 2011,19(6): 1281-1290
LAI Zhi-lin, LIU Xiang-dong, GENG Jie, LI Li. Sliding mode control of hysteresis of piezoceramic actuator based on inverse Preisach compensation[J]. Editorial Office of Optics and Precision Engineering, 2011,19(6): 1281-1290 DOI: 10.3788/OPE.20111906.1281.
Sliding mode control of hysteresis of piezoceramic actuator based on inverse Preisach compensation
In order to reduce the nonlinear hysteresis of piezoceramic actuators
a sliding mode control scheme based on Preisach inverse compensation was proposed in this paper. Firstly
an inverse Preisach model of the hysteresis was built by using the sorting & taxis realization method. Then the inverse model was connected in series with the hysteresis of the system to reduce the impact of the nonlinear hysteresis. In consideration of that the hysteresis can't be entirely offseted by the inverse model and there are also many uncertainties in the system
a sliding mode controller with a sub-boundary layer was designed. Finally
to verify the feasibility of the sliding mode controller
a PI controller was presented to compare with the proposed scheme. The experiment results show that the control scheme improves the tracking accuracy of the system
and the average absolute error is 0.020 6 m when tracking is on sinusoidal input. Compared with the PI controller based on the inverse Preisach model
the proposed control scheme has a better adaptability and can offer a good tracking accuracy.
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