Publications

@conference{Zaltni2010202,

title = {Robust MRAS speed observer and an improved zero-speed position estimation design for Surface Permanent Magnet Synchronous Motor},

author = {D. Zaltni and M. N. Abdelkrim},

url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-79952557891\&partnerID=40\&md5=0b1c44bf4806d17ac970bdc0c533aa8b},

isbn = {9789604741854},

year  = {2010},

date = {2010-01-01},

journal = {6th WSEAS International Conference on Dynamical Systems and Control, CONTROL '10},

pages = {202-210},

abstract = {Model Reference Adaptive System (MRAS) based techniques are one of the best methods to estimate the rotor speed and position due to its performances and straight forward stability approach. In this paper, we propose a new robust MRAS scheme based on sliding mode techniques to estimated the rotor speed of a Surface Permanent Magnet Synchronous Motor (SPMSM). Furthermore, an Estimator/Observer swapping system is designed to overcame position observability problems at zero speed which is an unobservable state point. The stability of the proposed observer is also discussed. Various tests are carried out in simulation to highlight the effectiveness and the robustness of the proposed rotor speed and position estimations design.},

note = {cited By 1},

keywords = {AC motors; Adaptive systems; Dynamical systems; Estimation; Magnetic devices; Permanent magnets; Rotors; Speed, Model reference adaptive system; Observability problems; Observer; Permanent Magnet Synchronous Motor; Position estimation; Rotor speed; Sliding mode; Sliding mode techniques; Speed observers; State points; Unobservable; Zero speed, Synchronous motors},

pubstate = {published},

tppubtype = {conference}

}

@conference{Zaltni2010,

title = {Robust speed and position observer using H.O.S.M for sensor-less S.P.M.S.M control},

author = {D. Zaltni and M. N. Abdelkrim},

url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-78149242113\&doi=10.1109%2fSSD.2010.5585560\&partnerID=40\&md5=c0bfa7e263f4dab7aafc272756f80e85},

doi = {10.1109/SSD.2010.5585560},

isbn = {9781424475346},

year  = {2010},

date = {2010-01-01},

journal = {2010 7th International Multi-Conference on Systems, Signals and Devices, SSD-10},

abstract = {This paper presents the design of a simple and effective speed and position observer for a Surface Permanent Magnet Synchronous Motor (SPMSM). The proposed observer based on Higher Order Sliding Mode (HOSM) is designed in order to ensure the robustness against disturbances and to avoid the chattering phenomenon which is inherent in standard first order sliding mode. The stability and finite time convergence of the developed observer are studied. Simulations are carried out using Matlab/Simulink to illustrate the robustness and the stability of the proposed observer. ©2010 IEEE.},

note = {cited By 2},

keywords = {AC motors; Magnetic devices; Permanent magnets; Sliding mode control; Stability, Finite-time convergence; Higher order sliding modes; Observer; Permanent magnet synchronous motor; Stability analysis, Synchronous motors},

pubstate = {published},

tppubtype = {conference}

}

@conference{Zaltni2009,

title = {Observability analysis of PMSM},

author = {D. Zaltni and M. N. Abdelkrim and M. Ghanes and J. P. Barbot},

url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-77951475212\&doi=10.1109%2fICSCS.2009.5412536\&partnerID=40\&md5=4bf7b433de074416c888800b7e304ea9},

doi = {10.1109/ICSCS.2009.5412536},

isbn = {9781424443987},

year  = {2009},

date = {2009-01-01},

journal = {3rd International Conference on Signals, Circuits and Systems, SCS 2009},

abstract = {The current problems to successfully apply sensorless control techniques for Permanent Magnet Synchronous Motor (PMSM) are the existence of operating conditions for which the observer performance is remarkably deteriorated. This is due to difficulties in estimating correctly the rotor position at low speed. The failure of sensor-less schemes in some particular operating conditions has been always recognized in experimental settings. However, there are no sufficient theoretical observability analysis for the PMSM. In the literature, only the sufficient observability condition has been presented. Therefore, the current work is aimed specially to necessary observability condition analysis. Thus, we give here the necessary and sufficient states observability condition for the PMSM. An example is presented to illustrate the results. © 2009 IEEE.},

note = {cited By 25},

keywords = {AC motors; Mathematical techniques; Observability; Permanent magnets, Condition analysis; Low speed; Observability analysis; Observer performance; Operating condition; Permanent Magnet Synchronous Motor; Rotor position; Sensor less control; Sensorless; Sufficient conditions, Synchronous motors},

pubstate = {published},

tppubtype = {conference}

}