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Pneumatic stage positioning with model following control and PDD² control

Pneumatic stage positioning with model following control and PDD² control This paper addresses the performance improvement of ing for a pneumatic stage. In the ing with proportional-derivative-double derivative (PDD2) control, the stiffness and damping of a control system can be easily adjusted. However, due to unknown parameter of a pneumatic system, there is a difficulty in achieving high repeatability of ing. To solve this problem, model following control (MFC) is combined with the PDD2 control. Since, by using the MFC, the pressure in a chamber can track the output of a desired model, the repeatability is improved under the condition that the parameter of pneumatic system is unknown. It is shown that the desired model of a first-order lag system is appropriate for the ing of the pneumatic stage. Furthermore, the difference between MFC and disturbance observer is discussed. The effectiveness of the proposed approach is shown by experiments on ing. Keywords: model following control; MFC; pneumatic stage; proportional-derivative-double derivative control; disturbance observer. to this paper should be made as follows: Ito, N., Wakui, S. and Nakamura, Y. (2015) `Pneumatic stage ing with model following control and PDD2 control', Int. J. Advanced Mechatronic Systems, Vol. 6, No. 6, pp.247­257. Biographical notes: Naoki Ito received his Bachelors degree from http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png International Journal of Advanced Mechatronic Systems Inderscience Publishers

Pneumatic stage positioning with model following control and PDD² control

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Publisher
Inderscience Publishers
Copyright
Copyright © 2015 Inderscience Enterprises Ltd.
ISSN
1756-8412
eISSN
1756-8420
DOI
10.1504/IJAMECHS.2015.074785
Publisher site
See Article on Publisher Site

Abstract

This paper addresses the performance improvement of ing for a pneumatic stage. In the ing with proportional-derivative-double derivative (PDD2) control, the stiffness and damping of a control system can be easily adjusted. However, due to unknown parameter of a pneumatic system, there is a difficulty in achieving high repeatability of ing. To solve this problem, model following control (MFC) is combined with the PDD2 control. Since, by using the MFC, the pressure in a chamber can track the output of a desired model, the repeatability is improved under the condition that the parameter of pneumatic system is unknown. It is shown that the desired model of a first-order lag system is appropriate for the ing of the pneumatic stage. Furthermore, the difference between MFC and disturbance observer is discussed. The effectiveness of the proposed approach is shown by experiments on ing. Keywords: model following control; MFC; pneumatic stage; proportional-derivative-double derivative control; disturbance observer. to this paper should be made as follows: Ito, N., Wakui, S. and Nakamura, Y. (2015) `Pneumatic stage ing with model following control and PDD2 control', Int. J. Advanced Mechatronic Systems, Vol. 6, No. 6, pp.247­257. Biographical notes: Naoki Ito received his Bachelors degree from

Journal

International Journal of Advanced Mechatronic Systems – Inderscience Publishers

Published: Jan 1, 2015

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