Title :
Mechanical sensorless control of PMSM with on-line estimation of stator resistance
Author :
Mobarakeh, B. Nahid ; Meibody-Tabar, F. ; Sargos, F.M.
Author_Institution :
Groupe de Recherche en Electronique et en Electrotechnique de Nancy, Vandoeuvre-les-Nancy, France
Abstract :
Sensorless control of PMSM is sensible to stator resistance uncertainties. In this paper, an on-line identification method of a sensorless controlled PMSM stator resistance is proposed. It is easy to implement and highly stable. A stability analysis based on the first method of Lyapunov shows the stability of the closed-loop system with the proposed estimator combined to the sensorless algorithm. This approach makes the sensorless control more robust with respect to the stator resistance variations at low speeds. The simulation and experimental results illustrate the validity of the analytical approach and the efficiency of the proposed method.
Keywords :
Lyapunov methods; closed loop systems; electric resistance; machine vector control; nonlinear systems; parameter estimation; permanent magnet motors; robust control; stators; synchronous motors; Lyapunov method; closed-loop system; estimator; mechanical sensorless control; nonlinear systems; on-line identification method; parameter identification; permanent magnet synchronous machines; stability analysis; stator resistance uncertainties; stator resistance variations; vector control; Electric resistance; Equations; Permanent magnet machines; Permanent magnet motors; Rotors; Sensorless control; Stability analysis; Stators; Synchronous motors; Uncertainty;
Conference_Titel :
Industry Applications Conference, 2002. 37th IAS Annual Meeting. Conference Record of the
Conference_Location :
Pittsburgh, PA, USA
Print_ISBN :
0-7803-7420-7
DOI :
10.1109/IAS.2002.1044159
