Observability analysis and robust observer design for a continuous yeast culture

2021 ◽  
Vol 104 ◽  
pp. 62-73
Author(s):  
Pascal Jerono ◽  
Alexander Schaum ◽  
Thomas Meurer
Keyword(s):  
Observer Design ◽  
Yeast Culture ◽  
Robust Observer ◽  
Observability Analysis

scholarly journals Robust Observer Design for Switched Positive Linear System with Uncertainties

2014 ◽  
Vol 2014 ◽  
pp. 1-9 ◽  
Author(s):  
Yanke Zhong ◽  
Tefang Chen
Keyword(s):  
Linear System ◽  
Linear Matrix Inequality ◽  
Dwell Time ◽  
Sufficient Conditions ◽  
Average Dwell Time ◽  
Observer Design ◽  
Linear Matrix ◽  
Matrix Inequality ◽  
Robust Observer ◽  
Slack Variable

This paper is concerned with the design of a robust observer for the switched positive linear system with uncertainties. Sufficient conditions of building a robust observer are established by using the multiple copositive Lyapunov-krasovskii function and the average dwell time approach. By introducing an auxiliary slack variable, these sufficient conditions are transformed into LMI (linear matrix inequality). A numerical example is given to illustrate the validities of obtained results.

CLPP: A User-Friendly Platform for Nonlinear Robust Observer Design

2010 ◽  
Vol 43 (5) ◽  
pp. 182-187
Author(s):  
M. Alamir ◽  
P. Bellemain ◽  
L. Boillereaux ◽  
I. Queinnec ◽  
M. Titica ◽  
...  
Keyword(s):  
Observer Design ◽  
Robust Observer ◽  
User Friendly ◽  
Nonlinear Robust Observer ◽  
Nonlinear Robust

A New Robust Sliding-Mode Observer Design for Monitoring in Chemical Reactors

2004 ◽  
Vol 126 (3) ◽  
pp. 473-478 ◽  
Author(s):  
Rafael Martı´nez-Guerra ◽  
Ricardo Aguilar ◽  
Alexander Poznyak
Keyword(s):  
Sliding Mode ◽  
Industrial Applications ◽  
Observer Design ◽  
Temperature Measurements ◽  
Model Description ◽  
Chemical Reactors ◽  
Stirred Tank Reactors ◽  
Robust Observer ◽  
Continuous Stirred Tank ◽  
Algebraic Technique

The robust observer design for the online estimation of heat in continuous stirred tank reactors, containing nonstructured uncertainties within its model description as well as noisy temperature measurements, is addressed. The proposed observer contains a sliding-mode term and is designed based on Differential Algebraic technique. The concept of the algebraic observability for a given class of model uncertainty is introduced. It is applied to the uncertainty estimation from noisy temperature measurements providing a simple observer structure which turns out to be robust against output (sensors) noises as well as sustained disturbances. The performance of this observer is shown to be calculated numerically. The obtained results look promising for possible industrial applications.

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