论文信息 - An online identification method for both stator resistance and back-EMF coefficient of PMSMs without rotational transducers

An online identification method for both stator resistance and back-EMF coefficient of PMSMs without rotational transducers

This letter describes an effective online method for identifying both the stator resistance and the back-electromotive-force (EMF) coefficient of a permanent-magnet synchronous motor (PMSM) without rotational transducers. Using only the information of stator currents and voltages, it can provide fairly good identification accuracy under various load conditions and can be easily incorporated into most sensorless speed control schemes proposed in the prior literature.

In-Joong Ha | Doo-Hee Jung | Kyu-Wang Lee

[1] M. Jadric,et al. Design and implementation of the extended Kalman filter for the speed and rotor position estimation of brushless DC motor , 2001, IEEE Trans. Ind. Electron..

[2] Seung-Ki Sul,et al. New approach for high-performance PMSM drives without rotational position sensors , 1997 .

[3] M. Sanada,et al. Sensorless control strategy for salient-pole PMSM based on extended EMF in rotating reference frame , 2001, Conference Record of the 2001 IEEE Industry Applications Conference. 36th IAS Annual Meeting (Cat. No.01CH37248).

[4] Silverio Bolognani,et al. Extended-range PMSM sensorless speed drive based on stochastic filtering , 2001 .

[5] A. H. Wijenayake,et al. Modeling and analysis of permanent magnet synchronous motor by taking saturation and core loss into account , 1997, Proceedings of Second International Conference on Power Electronics and Drive Systems.

[6] Ouassima Akhrif,et al. A nonlinear state observer for the sensorless control of a permanent-magnet AC machine , 2001, IEEE Trans. Ind. Electron..

[7] Carlos H. Muravchik,et al. On speed and rotor position estimation in permanent-magnet AC drives , 2000, IEEE Trans. Ind. Electron..