Title :
Back-EMF estimation based sensorless control of PMSM: robustness with respect to measurement errors and inverter irregularities
Author :
Nahid-Mobarakeh, Babak ; Meibody-Tabar, Farid ; Sargos, François-Michel
Author_Institution :
Centre de Robotique, CNRS, Cuffies, France
Abstract :
In this paper, the influence of measurement errors and inverter irregularities on performances of sensorless control is studied. The control algorithm is based on the back-EMF estimation whose robustness with respect to the machine parameter uncertainties was already studied Mobarakeh, BN et al., (2001) by supposing that current measurements and the power stage are ideal. Here, these hypotheses are canceled and we show analytically and experimentally that the control performances at low speed are highly affected by the imperfection of the electronic components. We also present the interest of on-line stator resistance estimation improving the sensorless control performances in spite of the presence of above disturbances.
Keywords :
electric potential; invertors; machine control; measurement errors; nonlinear control systems; parameter estimation; permanent magnet machines; robust control; stators; synchronous machines; PMSM; back-EMF estimation; control algorithm; electronic components; inverter irregularity; machine parameter uncertainties; measurement error; nonlinear systems; on-line stator resistance estimation; permanent-magnet synchronous machines; robustness; sensorless control; Current measurement; Electronic components; Inverters; Measurement errors; Performance analysis; Performance evaluation; Robust control; Sensorless control; Stators; Uncertain systems;
Conference_Titel :
Industry Applications Conference, 2004. 39th IAS Annual Meeting. Conference Record of the 2004 IEEE
Print_ISBN :
0-7803-8486-5
DOI :
10.1109/IAS.2004.1348723
