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Sensorless position estimation and control of permanent-magnet synchronous motors using a saturation model

François Malrait 1 Al Kassem Jebai 1 Philippe Martin 2 Pierre Rouchon 3, 2
3 QUANTIC - QUANTum Information Circuits
ENS Paris - École normale supérieure - Paris, Inria Paris-Rocquencourt, UPMC - Université Pierre et Marie Curie - Paris 6, MINES ParisTech - École nationale supérieure des mines de Paris, CNRS - Centre National de la Recherche Scientifique : UMR8551
Abstract : Sensorless control of permanent-magnet synchronous motors at low velocity remains a challenging task. A now well-established method consists of injecting a high-frequency signal and using the rotor saliency, both geometric and magnetic-saturation induced. This paper proposes a clear and original analysis based on second-order averaging of how to recover the position information from signal injection; this analysis blends well with a general model of magnetic saturation. It also proposes a simple parametric model of the saturated motor, based on an energy function which simply encompasses saturation and cross-saturation effects. Experimental results on a surface-mounted motor and an interior magnet motor illustrate the relevance of the approach.
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https://hal-mines-paristech.archives-ouvertes.fr/hal-01248848
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Submitted on : Tuesday, December 29, 2015 - 7:24:26 AM
Last modification on : Thursday, July 1, 2021 - 5:32:52 PM

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François Malrait, Al Kassem Jebai, Philippe Martin, Pierre Rouchon. Sensorless position estimation and control of permanent-magnet synchronous motors using a saturation model. International Journal of Control, Taylor & Francis, 2015, 89 (3), pp.535-549. ⟨10.1080/00207179.2015.1084049⟩. ⟨hal-01248848⟩

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