Enhancement of tracking ability in piezoceramic actuators subject to dynamic excitation conditions

An operator representing the inverse dynamics of hysteretic effects inherent to piezoceramic actuators is used to enhance the tracking accuracy of a piezoceramic-driven positioning system when subject to dynamic reference input signals covering a wide frequency range. An open-loop tracking controlle...

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Bibliographic Details
Published in:IEEE/ASME transactions on mechatronics 2005-04, Vol.10 (2), p.230-239
Main Authors: Hu, H., Georgiou, H.M.S., Ben-Mrad, R.
Format: Article
Language:English
Subjects:
Actuators
Control systems
Dynamical systems
Dynamics
Hard disks
Hysteresis
Inverse
Inverse dynamic operator
Inverse dynamics
inverse Preisach operator
Magnetic materials
Nonlinear control systems
Open loop systems
Optical fiber testing
piezoceramic
Piezoelectric ceramics
Piezoelectric materials
Tracking
tracking control
Voltage
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Summary:An operator representing the inverse dynamics of hysteretic effects inherent to piezoceramic actuators is used to enhance the tracking accuracy of a piezoceramic-driven positioning system when subject to dynamic reference input signals covering a wide frequency range. An open-loop tracking controller and a closed-loop tracking controller are developed based on the new inverse algorithm and are experimentally shown to achieve high-accuracy tracking control.
ISSN:1083-4435
1941-014X
DOI:10.1109/TMECH.2005.844705