Nonlinear control of a MEMS optical switch

K. O. Owusu; F. L. Lewis; B. Borovic; A. Q. Liu

doi:10.1109/cdc.2006.377521

Nonlinear control of a MEMS optical switch

K. O. Owusu, F. L. Lewis, B. Borovic, A. Q. Liu

Research output: Chapter in book / Conference proceeding › Conference article published in proceeding or book › Academic research › peer-review

10 Citations (Scopus)

Abstract

This paper presents the development of a dynamical model of a MEMS based optical switch. The model is verified using experimental results. An inherent weakness in the use of the model for control design is the unavailability of position information at all times due to the saturated output characteristics. To counteract this problem, a nonlinear observer is designed for the saturated output system to estimate the states (both inside and outside of the saturation region) for dynamic control of the switch. The nonlinear observer is used to synthesize feedback linearization nonlinear control. The central idea of the feedback linearization control is to compensate for the nonlinearity in the system dynamics. Simulation results show that the proposed nonlinear observer and controller design approaches have not only good tracking ability and convergence but also extremely good parameter variation robustness.

Original language	English
Title of host publication	Proceedings of the 45th IEEE Conference on Decision and Control 2006, CDC
Publisher	Institute of Electrical and Electronics Engineers Inc.
Pages	597-602
Number of pages	6
ISBN (Print)	1424401712, 9781424401710
DOIs	https://doi.org/10.1109/cdc.2006.377521
Publication status	Published - Dec 2006
Externally published	Yes
Event	45th IEEE Conference on Decision and Control 2006, CDC - San Diego, CA, United States Duration: 13 Dec 2006 → 15 Dec 2006

Publication series

Name	Proceedings of the IEEE Conference on Decision and Control
ISSN (Print)	0743-1546
ISSN (Electronic)	2576-2370

Conference

Conference	45th IEEE Conference on Decision and Control 2006, CDC
Country/Territory	United States
City	San Diego, CA
Period	13/12/06 → 15/12/06

ASJC Scopus subject areas

Control and Systems Engineering
Modelling and Simulation
Control and Optimization

More information

10.1109/cdc.2006.377521

Cite this

Owusu, K. O., Lewis, F. L., Borovic, B., & Liu, A. Q. (2006). Nonlinear control of a MEMS optical switch. In Proceedings of the 45th IEEE Conference on Decision and Control 2006, CDC (pp. 597-602). Article 4177172 (Proceedings of the IEEE Conference on Decision and Control). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/cdc.2006.377521

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abstract = "This paper presents the development of a dynamical model of a MEMS based optical switch. The model is verified using experimental results. An inherent weakness in the use of the model for control design is the unavailability of position information at all times due to the saturated output characteristics. To counteract this problem, a nonlinear observer is designed for the saturated output system to estimate the states (both inside and outside of the saturation region) for dynamic control of the switch. The nonlinear observer is used to synthesize feedback linearization nonlinear control. The central idea of the feedback linearization control is to compensate for the nonlinearity in the system dynamics. Simulation results show that the proposed nonlinear observer and controller design approaches have not only good tracking ability and convergence but also extremely good parameter variation robustness.",

author = "Owusu, {K. O.} and Lewis, {F. L.} and B. Borovic and Liu, {A. Q.}",

year = "2006",

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publisher = "Institute of Electrical and Electronics Engineers Inc.",

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Owusu, KO, Lewis, FL, Borovic, B & Liu, AQ 2006, Nonlinear control of a MEMS optical switch. in Proceedings of the 45th IEEE Conference on Decision and Control 2006, CDC., 4177172, Proceedings of the IEEE Conference on Decision and Control, Institute of Electrical and Electronics Engineers Inc., pp. 597-602, 45th IEEE Conference on Decision and Control 2006, CDC, San Diego, CA, United States, 13/12/06. https://doi.org/10.1109/cdc.2006.377521

Nonlinear control of a MEMS optical switch. / Owusu, K. O.; Lewis, F. L.; Borovic, B. et al.
Proceedings of the 45th IEEE Conference on Decision and Control 2006, CDC. Institute of Electrical and Electronics Engineers Inc., 2006. p. 597-602 4177172 (Proceedings of the IEEE Conference on Decision and Control).

Research output: Chapter in book / Conference proceeding › Conference article published in proceeding or book › Academic research › peer-review

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AB - This paper presents the development of a dynamical model of a MEMS based optical switch. The model is verified using experimental results. An inherent weakness in the use of the model for control design is the unavailability of position information at all times due to the saturated output characteristics. To counteract this problem, a nonlinear observer is designed for the saturated output system to estimate the states (both inside and outside of the saturation region) for dynamic control of the switch. The nonlinear observer is used to synthesize feedback linearization nonlinear control. The central idea of the feedback linearization control is to compensate for the nonlinearity in the system dynamics. Simulation results show that the proposed nonlinear observer and controller design approaches have not only good tracking ability and convergence but also extremely good parameter variation robustness.

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Nonlinear control of a MEMS optical switch

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