Eur. Phys. J. Appl. Phys.
Volume 43, Number 2, August 2008
Reliability in Electromagnetic Systems (IET)
|Page(s)||217 - 223|
|Section||Physics of Energy Generation, Conversion and Storage|
|Published online||17 July 2008|
Multicell actuator based on a sliding mode control*
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,
2 ECS-EA 3649 E.N.S.E.A., 6 avenue du Ponceau, 95014 Cergy-Pontoise, France
Corresponding author: firstname.lastname@example.org
Revised: 10 March 2008
Accepted: 20 May 2008
Published online: 17 July 2008
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.
PACS: 84.30.Bv – Circuit theory / 84.30.Jc – Power electronics; power supply circuits
© EDP Sciences, 2008
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