Robust control of depth of anesthesia based on H∞ design

• Autorzy: Caiado D. V. , Lemos J. M. , Costa B. A.
• Języki publikacji: EN

Abstrakty

EN

This paper presents a case study on the design of a robust controller for the depth of anesthesia (DoA) induced by the drug propofol. This process is represented by a linear model together with a non-parametric uncertainty description that is evaluated using a patient model bank with 20 patients undergoing sedation. By using H∞ methods, the controller is aimed to comply with robust stability and performance specifications for the class of patient models considered. A minimization problem of sensitivity and complementary sensitivity is made to design the controller. The controller that results from this procedure is approximated by a controller with a lower order, that in turn is redesigned in discrete time for computer control application. The resulting controller is evaluated in simulations using a realistic nonlinear model of DoA.

Słowa kluczowe

EN

depth of anesthesia; model uncertainty; robust control feedback; H∞ design; μ-synthesis

• Wydawca: Polish Academy of Sciences, Committee of Automatic Control and Robotics
• Czasopismo: Archives of Control Sciences
• Rocznik: 2013
• Tom: Vol. 23, no. 1
• Strony: 41--59
• Opis fizyczny: Bibliogr. 17 poz., rys., tab.

Twórcy

autor

Caiado D. V.

• INESC-ID, Lisboa, Portugal

autor

Lemos J. M.

• INESC-ID/IST, Lisboa, Portugal

autor

Costa B. A.

• INESC-ID/IST, Lisboa, Portugal

Bibliografia

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Uwagi

EN

This work has been performed in the framework of project GALENO - Modeling and control for personalizeddrug administration, supported by Fundação de Ciência e Tecnologia, Portugal, under contract PTDC/SAU-BEB/103667/2008, and PEst - OE/EEI/LA0021/2011.