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

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3 Author(s)
Hu, H. ; Shenzhen Graduate Sch., Harbin Inst. of Technol., Shenzhen, China ; Georgiou, H.M.S. ; Ben-Mrad, R.

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.

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Mechatronics, IEEE/ASME Transactions on  (Volume:10 ,  Issue: 2 )