Please use this identifier to cite or link to this item: https://doi.org/10.1109/87.748143
Title: An H ∞ almost disturbance decoupling robust controller design for a piezoelectric bimorph actuator with hysteresis
Authors: Chen, B.M. 
Lee, T.H. 
Hang, C.-C. 
Guo, Y.
Weerasooriya, S. 
Keywords: Actuators
Disturbance decoupling
H ∞ control
Piezoelectric devices
Robust control
Suboptimal control
Issue Date: 1999
Source: Chen, B.M., Lee, T.H., Hang, C.-C., Guo, Y., Weerasooriya, S. (1999). An H ∞ almost disturbance decoupling robust controller design for a piezoelectric bimorph actuator with hysteresis. IEEE Transactions on Control Systems Technology 7 (2) : 160-174. ScholarBank@NUS Repository. https://doi.org/10.1109/87.748143
Abstract: A robust controller design for a piezoelectric bimorph nonlinear actuator is considered in this paper. The nonlinear dynamics of the actuator are first linearized using the stochastic equivalent linearization method and reformulated into a standard almost disturbance decoupling problem. Then a robust controller, which is explicitly parameterized by two tuning parameters, is carried out using a so-called asymptotic time-scale and eigenstructure assignment approach. The parameterized controller can be tuned by adjusting the parameters to achieve disturbance decoupling and other design goals for the problem that we consider. Simulation results of time-domain responses show that the design is very successful in terms of steady-state tracking error and settling time as well as other performances. © 1999 IEEE.
Source Title: IEEE Transactions on Control Systems Technology
URI: http://scholarbank.nus.edu.sg/handle/10635/80291
ISSN: 10636536
DOI: 10.1109/87.748143
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