TY - GEN
T1 - Advanced adaptive control for piezo-actuated nano-positioner
AU - Chen, Xinkai
AU - Su, Chun Yi
AU - Fukuda, Toshio
PY - 2011
Y1 - 2011
N2 - The piezo-actuated nano-positioner is composed of a piezo electric actuator (PEA) and a positioning mechanism (PM). Due to the hysteretic nonlinearity in the PEA and the friction in the PM, the high precision control of the piezo-actuated nano-positioner is a very challenging task. In this paper, a new adaptive control law for the positioner is proposed, where the parameterized hysteresis model is employed. The proposed control law ensures the global stability of the controlled stage, and the position error can be controlled to approach to zero asymptotically. The advantage is that the real values of the parameters of the positioner need to be neither identified nor measured, and very high precision tracking can be achieved. Experimental results show the effectiveness of the proposed method.
AB - The piezo-actuated nano-positioner is composed of a piezo electric actuator (PEA) and a positioning mechanism (PM). Due to the hysteretic nonlinearity in the PEA and the friction in the PM, the high precision control of the piezo-actuated nano-positioner is a very challenging task. In this paper, a new adaptive control law for the positioner is proposed, where the parameterized hysteresis model is employed. The proposed control law ensures the global stability of the controlled stage, and the position error can be controlled to approach to zero asymptotically. The advantage is that the real values of the parameters of the positioner need to be neither identified nor measured, and very high precision tracking can be achieved. Experimental results show the effectiveness of the proposed method.
UR - http://www.scopus.com/inward/record.url?scp=84863069624&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84863069624&partnerID=8YFLogxK
U2 - 10.1109/IECON.2011.6119849
DO - 10.1109/IECON.2011.6119849
M3 - Conference contribution
AN - SCOPUS:84863069624
SN - 9781612849720
T3 - IECON Proceedings (Industrial Electronics Conference)
SP - 3346
EP - 3351
BT - Proceedings
T2 - 37th Annual Conference of the IEEE Industrial Electronics Society, IECON 2011
Y2 - 7 November 2011 through 10 November 2011
ER -