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Sensorless Control of Surface-Mount Permanent-Magnet Synchronous Motors Based on a Nonlinear Observer

Abstract : A nonlinear observer for surface-mount permanent-magnet synchronous motors (SPMSMs) was recently proposed by Ortega et al.(LSS, Gif-sur-Yvette Cedex, France, LSS Internal Rep., Jan. 2009). The nonlinear observer generates the position estimate hat(theta) via the estimates of sin theta and cos theta. In contrast to Luenberger-type observers, it does not require speed information, thus eliminating the complexity associated with speed estimation errors. Further, it is simple to implement. In this study, the nonlinear observer performance is verified experimentally. To obtain speed estimates from the position information, a proportional-integral (PI) tracking controller speed estimator was utilized. The results are good with and without loads, above 10 r/min.
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https://hal-mines-paristech.archives-ouvertes.fr/hal-00480983
Contributor : François Chaplais <>
Submitted on : Wednesday, May 5, 2010 - 3:58:02 PM
Last modification on : Thursday, June 17, 2021 - 3:49:58 AM
Long-term archiving on: : Thursday, September 16, 2010 - 1:06:33 PM

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Junggi Lee, Jinseok Hong, Kwanghee Nam, Romeo Ortega, Laurent Praly, et al.. Sensorless Control of Surface-Mount Permanent-Magnet Synchronous Motors Based on a Nonlinear Observer. IEEE Transactions on Power Electronics, Institute of Electrical and Electronics Engineers, 2010, 25 (2), pp.290 - 297. ⟨10.1109/TPEL.2009.2025276⟩. ⟨hal-00480983⟩

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