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Sensors (Basel). 2013 Feb 27;13(3):2735-49. doi: 10.3390/s130302735.

Virtual estimator for piecewise linear systems based on observability analysis.

Author information

1
Centro Nacional de Investigación y Desarrollo Tecnológico, Departamento de Ingeniería Electrónica, Interior Internado de Palmira s/n, 69490 Cuernavaca, Morelos, Mexico. corneliomoralesmorales@gmail.com

Abstract

This article proposes a virtual sensor for piecewise linear systems based on observability analysis that is in function of a commutation law related with the system's outpu. This virtual sensor is also known as a state estimator. Besides, it presents a detector of active mode when the commutation sequences of each linear subsystem are arbitrary and unknown. For the previous, this article proposes a set of virtual estimators that discern the commutation paths of the system and allow estimating their output. In this work a methodology in order to test the observability for piecewise linear systems with discrete time is proposed. An academic example is presented to show the obtained results.

PMID:
23447007
PMCID:
PMC3658710
DOI:
10.3390/s130302735
[Indexed for MEDLINE]
Free PMC Article

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