Title An H-infinity suboptimal robust control approach for systems with uncertainties and data dropouts
Authors JURADO FLORES, ISABEL, Ortega, Manuel G. , Quevedo, Daniel E. , Rubio, Francisco R.
External publication No
Means Int. J. Syst. Sci.
Scope Article
Nature Científica
JCR Quartile 1
SJR Quartile 1
JCR Impact 1.94700
SJR Impact 1.04200
Area International
Publication date 18/08/2015
ISI 000353511100007
DOI 10.1080/00207721.2013.843733
Abstract This paper studies the design of control systems subject to plant uncertainties and data losses in the channel connecting the plant sensor with the controller. The controller design has two main objectives. The first one is to robustify the control law against plant uncertainties. The other one is to achieve good performance by minimising the variance of the error signal. Data losses are modelled as an independent and identically distributed sequence of Bernoulli random variables. For analysis and design, this random variable is replaced by an additive noise plus gain channel model. To cope with structural uncertainties in the model of the plant, an H-infinity control technique is employed. The controller is synthesised in order to make the closed-loop system robust against structural uncertainties of the nominal model, while achieving optimal performance of the system in the presence of dropouts.
Keywords packet dropouts; networked control systems; uncertain systems; H-infinity control
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