Title of article
Design of Direct Exponential Observers for Fault Detection of Nonlinear MEMS Tunable Capacitor
Author/Authors
Mobki, H Department of Mechanical Engineering - University of Tabriz, Tabriz, Iran , Sadeghia, M. H Department of Mechanical Engineering - University of Tabriz, Tabriz, Iran , Rezazadeh, G Department of Mechanical Engineering - Urmia University, Urmia, Iran
Pages
8
From page
634
To page
641
Abstract
In this paper a novel method for construction of an exponential observer for nonlinear system is
proposed. The method is based on direct solution of dynamic error without any linearizing of nonlinear
terms. Necessary and sufficient conditions for construction of direct observer are presented. Stability of
the observer is checked using Lyapunov theorem. Also, the ability of this observer is checked by
implementing the observer for fault detection of micro tunable capacitor subjected to nonlinear
electrostatic force.
Farsi abstract
در اين مقاله روش جديدي براي ساخت روئيت گر نمايي براي سيستم غيرخطي ارائه شده است. روش ارائه شده بر پايه حل معادله ديفرانسيل خطاي ديناميكي بدون هر گونه خطي سازي مي باشد. شرايط لازم و كافي براي تشكيل روئيت گر مشخص شده و پايداري روئيت گر با استفاده از تئوري لياپانوف بررسي شده است. همچنين توانايي روئيت گر در عيب يابي ميكرو خازن قابل تنظيم كه تحت تاثير نيروي غير خطي الكترواستاتيك قرار دارد بررسي شده است.
Keywords
nonlinear observer , exponential observer , Lyapunov theorem , micro tunable capacitor
Journal title
Astroparticle Physics
Serial Year
2015
Record number
2406925
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