Feedback Linearization of a Blower in an Anesthesia Workstation

Radial compressors, Blowers, which are often used in modern devices for medical ventilation, are known to have non-linear dynamics regarding the generated pressure. To make them accessible for the large field of linear control theory their model needs to be linearized. This paper uses a gray box mod...

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Main Authors: Prüßmann Jannik, Männel Georg, Brendle Christian, Rostalski Philipp
Format: Article
Language:English
Published: De Gruyter 2022-09-01
Series:Current Directions in Biomedical Engineering
Subjects:
Online Access:https://doi.org/10.1515/cdbme-2022-1070
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author Prüßmann Jannik
Männel Georg
Brendle Christian
Rostalski Philipp
author_facet Prüßmann Jannik
Männel Georg
Brendle Christian
Rostalski Philipp
author_sort Prüßmann Jannik
collection DOAJ
description Radial compressors, Blowers, which are often used in modern devices for medical ventilation, are known to have non-linear dynamics regarding the generated pressure. To make them accessible for the large field of linear control theory their model needs to be linearized. This paper uses a gray box model of a blower driven by a brushless direct current (BLDC) motor to design a controller based on feedback linearization. The controller is designed to achieve approximate linear closed loop behavior of the system. The controller is then evaluated concerning reference tracking and disturbance rejection in simulation and on a demonstrator system. The evaluation showed that an approximate linear closed loop behavior was achieved.
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spelling doaj.art-ce24e76b5a764d56824ea6f60a5737132023-03-06T10:24:52ZengDe GruyterCurrent Directions in Biomedical Engineering2364-55042022-09-018227327610.1515/cdbme-2022-1070Feedback Linearization of a Blower in an Anesthesia WorkstationPrüßmann Jannik0Männel Georg1Brendle Christian2Rostalski Philipp3Institute for Electrical Engineering in Medicine, University of Lubeck, Ratzeburger Allee 160, 23562Lubeck, GermanyFraunhofer Research Institution for Individualized and Cell-Based Medical Engineering,Lubeck, GermanyDragerwerk AG & Co. KGaA,Lubeck, GermanyInstitute for Electrical Engineering in Medicine, University of Lubeck,Lubeck, GermanyRadial compressors, Blowers, which are often used in modern devices for medical ventilation, are known to have non-linear dynamics regarding the generated pressure. To make them accessible for the large field of linear control theory their model needs to be linearized. This paper uses a gray box model of a blower driven by a brushless direct current (BLDC) motor to design a controller based on feedback linearization. The controller is designed to achieve approximate linear closed loop behavior of the system. The controller is then evaluated concerning reference tracking and disturbance rejection in simulation and on a demonstrator system. The evaluation showed that an approximate linear closed loop behavior was achieved.https://doi.org/10.1515/cdbme-2022-1070feedback linearizationventilator controlnonlinear control
spellingShingle Prüßmann Jannik
Männel Georg
Brendle Christian
Rostalski Philipp
Feedback Linearization of a Blower in an Anesthesia Workstation
Current Directions in Biomedical Engineering
feedback linearization
ventilator control
nonlinear control
title Feedback Linearization of a Blower in an Anesthesia Workstation
title_full Feedback Linearization of a Blower in an Anesthesia Workstation
title_fullStr Feedback Linearization of a Blower in an Anesthesia Workstation
title_full_unstemmed Feedback Linearization of a Blower in an Anesthesia Workstation
title_short Feedback Linearization of a Blower in an Anesthesia Workstation
title_sort feedback linearization of a blower in an anesthesia workstation
topic feedback linearization
ventilator control
nonlinear control
url https://doi.org/10.1515/cdbme-2022-1070
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