Sliding mode control design of an electrostatic microactuator using LPV schemes

Alwi, H, Zolotas, A, Edwards, C and Grigoriadis, K (2012) Sliding mode control design of an electrostatic microactuator using LPV schemes. In: American Control Conference (ACC), 2012, June, Montreal, Canada.

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Abstract

This paper presents preliminary results of a robust linear parameter varying (LPV)-based sliding mode voltage controller for a parallel-plate electro-static microactuator. The controller design aims to extend the travelling range of the microactuator plates beyond the, so-called, `pull-in' condition, thus taking advantage of an increased range of operation. The designed controller is successful in extending the microactuator's plates operation beyond the pull-in condition with moderate controller complexity, while guaranteeing robustness against matched uncertainty. Results illustrate, that the controller also provides a degree of robustness to unmatched uncertainty (i.e. spring stiffness variation). Appropriate simulation studies, on the nonlinear normalized microactuator model, are employed to assess the efficacy of the proposed controller

Item Type: Conference or Workshop Item (Paper)
Additional Information: Paper received the ACC 2012 Best Presentation, in Session WeB03, award. Link: http://a2c2.org/conferences/acc2012/files/BPS_Wednesday.pdf (last accessed 12/12/2012)
Keywords: LPV schemes;controller complexity;parallel-plate electrostatic microactuator;robust linear parameter varying based sliding mode voltage controller;sliding mode control design;unmatched uncertainty;computational complexity;control system synthesis;electrostatic actuators;microactuators;nonlinear control systems;robust control;variable structure systems;voltage regulators;
Schools and Departments: School of Engineering and Informatics > Engineering and Design
Subjects: T Technology
T Technology > TJ Mechanical engineering and machinery > TJ0212 Control engineering systems. Automatic machinery (General)
Depositing User: Argyrios Zolotas
Date Deposited: 20 Nov 2012 20:54
Last Modified: 13 Dec 2012 15:48
URI: http://sro.sussex.ac.uk/id/eprint/42755
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