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Preview Control of Dual-Stage Actuator Systems for Superfast Transition Time

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4 Author(s)
Salton, A.T. ; Sch. of Electr. Eng. & Comput. Sci., Univ. of Newcastle, Newcastle, NSW, Australia ; Zhiyong Chen ; Jinchuan Zheng ; Minyue Fu

This paper introduces a preview control design method to reduce the settling time of dual-stage actuators (DSAs). A DSA system is comprised of two actuators connected in series, a primary (coarse) actuator, and a secondary (fine) actuator. The objective of the proposed design is to account for the redundancy of actuators and use the information of future reference levels in order to compute a pair of inputs to be applied before the output transition time. Experimental results show that the proposed design method significantly reduces the output transition time when compared to conventional forms of DSA control design.

Published in:

Mechatronics, IEEE/ASME Transactions on  (Volume:16 ,  Issue: 4 )