Analysis and Modeling of Linear-Switched Reluctance for Medical Application

This paper focuses on the analysis, the modeling and the control of a linear-switched reluctance motor. The application under consideration is medical, and the actuator is to be used as a left ventricular assist device. The actuator has a cylindrical or tubular shape, with a mechanical unidirectiona...

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Main Authors: Jean-Francois Llibre, Nicolas Martinez, Pascal Leprince, Bertrand Nogarede
Format: Article
Language:English
Published: MDPI AG 2013-04-01
Series:Actuators
Subjects:
Online Access:http://www.mdpi.com/2076-0825/2/2/27
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author Jean-Francois Llibre
Nicolas Martinez
Pascal Leprince
Bertrand Nogarede
author_facet Jean-Francois Llibre
Nicolas Martinez
Pascal Leprince
Bertrand Nogarede
author_sort Jean-Francois Llibre
collection DOAJ
description This paper focuses on the analysis, the modeling and the control of a linear-switched reluctance motor. The application under consideration is medical, and the actuator is to be used as a left ventricular assist device. The actuator has a cylindrical or tubular shape, with a mechanical unidirectional valve placed inside the mover, which provides a pulsatile flow of blood. The analytical expression of the effort based on the linear behavior of the actuator is given. The identification of the characteristics of the prototype actuator and the principle of position control is performed. A modeling of the actuator is proposed, taking into account the variation of inductance with respect to the position. The closed-loop position control of the actuator is performed by simulation. A controller with integral action and anticipatory action is implemented in order to compensate the effects of disturbing efforts and tracking deviations. Moreover, a magic switch is performed in the controller to avoid overshoots. The results show that the closed-loop response of the actuator is satisfactory.
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spelling doaj.art-24ea4ccc4eb94d8286536830d7d6d4f22022-12-21T19:38:00ZengMDPI AGActuators2076-08252013-04-0122274410.3390/act2020027Analysis and Modeling of Linear-Switched Reluctance for Medical ApplicationJean-Francois LlibreNicolas MartinezPascal LeprinceBertrand NogaredeThis paper focuses on the analysis, the modeling and the control of a linear-switched reluctance motor. The application under consideration is medical, and the actuator is to be used as a left ventricular assist device. The actuator has a cylindrical or tubular shape, with a mechanical unidirectional valve placed inside the mover, which provides a pulsatile flow of blood. The analytical expression of the effort based on the linear behavior of the actuator is given. The identification of the characteristics of the prototype actuator and the principle of position control is performed. A modeling of the actuator is proposed, taking into account the variation of inductance with respect to the position. The closed-loop position control of the actuator is performed by simulation. A controller with integral action and anticipatory action is implemented in order to compensate the effects of disturbing efforts and tracking deviations. Moreover, a magic switch is performed in the controller to avoid overshoots. The results show that the closed-loop response of the actuator is satisfactory.http://www.mdpi.com/2076-0825/2/2/27switched reluctancemodelinglinear actuatorposition controlmedical application
spellingShingle Jean-Francois Llibre
Nicolas Martinez
Pascal Leprince
Bertrand Nogarede
Analysis and Modeling of Linear-Switched Reluctance for Medical Application
Actuators
switched reluctance
modeling
linear actuator
position control
medical application
title Analysis and Modeling of Linear-Switched Reluctance for Medical Application
title_full Analysis and Modeling of Linear-Switched Reluctance for Medical Application
title_fullStr Analysis and Modeling of Linear-Switched Reluctance for Medical Application
title_full_unstemmed Analysis and Modeling of Linear-Switched Reluctance for Medical Application
title_short Analysis and Modeling of Linear-Switched Reluctance for Medical Application
title_sort analysis and modeling of linear switched reluctance for medical application
topic switched reluctance
modeling
linear actuator
position control
medical application
url http://www.mdpi.com/2076-0825/2/2/27
work_keys_str_mv AT jeanfrancoisllibre analysisandmodelingoflinearswitchedreluctanceformedicalapplication
AT nicolasmartinez analysisandmodelingoflinearswitchedreluctanceformedicalapplication
AT pascalleprince analysisandmodelingoflinearswitchedreluctanceformedicalapplication
AT bertrandnogarede analysisandmodelingoflinearswitchedreluctanceformedicalapplication