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Title

Development of an extended reset controller and its experimental demonstration

Author(s)

Zheng, J.;  Guo, Y.;  Fu, M.;  Wang, Y.;  Xie, L.

Abstract

Reset control aims at enhanced performance that cannot be obtained by linear controllers. The conventional reset control is simple for implementation by resetting some of its controller states to zero when its input meets a threshold. However, it is found that in some cases the enhanced performance of conventional reset control is still limited such as with only partial reduction of the overshoot in a step reference response. Thus, the stability analysis and design of the reset control system are extended, where the reset time instances are prespecified and the controller states are reset to certain non-zero values, which are calculated online in terms of the system states for optimal performance. Experimental results on a piezoelectric positioning stage demonstrate that the extended reset control can further reduce the overshoot and thus achieve shorter settling time than the conventional reset control. Moreover, robustness tests against various step levels, disturbance and sensor noise are presented.

Publication type

Journal article

Source

IET Control Theory and Applications, Vol. 2, no. 10 (2008), pp. 866-874

Publication year

2008

FOR Code(s)

0102 Applied Mathematics;  0906 Electrical and Electronic Engineering;  0913 Mechanical Engineering

Keyword(s)

Control systems;  Control theory;  Enhanced performance;  Linear control systems;  Linear controllers;  Optimal performances;  Partial reduction;  Positioning stage;  Reset control;  Robustness testing;  Sensor networks;  Sensor noises;  Settling time;  Stability analysis;  System stability;  System states;  Time instances;  Zero values

Publisher

Institution of Engineering and Technology

ISSN

1751-8644

Publisher URL

http://dx.doi.org/10.1049/iet-cta:20070282

Copyright

Copyright © 2008 The Institution of Engineering and Technology. This paper is a postprint of a paper submitted to and accepted for publication in IET Control Theory and Applications and is subject to Engineering and Technology Copyright. The copy of record is available at IET Digital Library. The accepted manuscript is reproduced in accordance with the copyright policy of the publisher.

Full text

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