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Multicell actuator based on a sliding mode control*

Published online by Cambridge University Press:  17 July 2008

O. Béthoux ,
J.-P. Barbot  and
M. Hilairet
O. Béthoux*
Affiliation:
Laboratoire de Génie Électrique de Paris, CNRS UMR 8507, Supélec, Université Paris-Sud, UPMC Université Paris 6, 11 rue Joliot-Curie, Plateau de Moulon, 91192 Gif-sur-Yvette Cedex, France
J.-P. Barbot
Affiliation:
ECS-EA 3649 E.N.S.E.A., 6 avenue du Ponceau, 95014 Cergy-Pontoise, France
M. Hilairet
Affiliation:
Laboratoire de Génie Électrique de Paris, CNRS UMR 8507, Supélec, Université Paris-Sud, UPMC Université Paris 6, 11 rue Joliot-Curie, Plateau de Moulon, 91192 Gif-sur-Yvette Cedex, France
*
olivier.bethoux@lgep.supelec.fr
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Abstract

This paper deals with reliability of motor drive systems. It focuses on the switching power converter which is the weakest drive part. It investigates a new architecture which provides intrinsic redundancy. The method used in this fault switch detection and diagnosis is based on a sliding mode observer. The original aspect of this new approach is that the observer influences the control algorithm in order to rule out or accept the possibility of the device failure. This leads to the right decision which induces the rebuilding of the converter topology. This fault tolerant control strategy assures continuous operation even though one switch failure occurs.

Keywords

Type
Research Article
Information
The European Physical Journal - Applied Physics , Volume 43 , Issue 2: Reliability in Electromagnetic Systems (IET) , August 2008 , pp. 217 - 223
Copyright
© EDP Sciences, 2008

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Footnotes

*

This article has been submitted as part of “IET –Colloquium on Reliability in Electromagnetic Systems”, 24 and 25 May 2007, Paris

References

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