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Signal injection and averaging for position estimation of Permanent-Magnet Synchronous Motors

Abstract : Sensorless control of Permanent-Magnet Synchronous Motors at low velocity remains a challenging task. A now well-established method consists in injecting a high-frequency signal and use 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 experimentally demonstrates the relevance for position estimation of a simple parametric saturation model recently introduced by the authors.
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https://hal-mines-paristech.archives-ouvertes.fr/hal-00787794
Contributor : François Chaplais <>
Submitted on : Tuesday, February 12, 2013 - 11:33:51 PM
Last modification on : Thursday, September 24, 2020 - 5:04:18 PM

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  • HAL Id : hal-00787794, version 1

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Al Kassem Jebai, François Malrait, Philippe Martin, Pierre Rouchon. Signal injection and averaging for position estimation of Permanent-Magnet Synchronous Motors. Conference on Decision and Control (2012), Dec 2012, United States. pp.7608-7613. ⟨hal-00787794⟩

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