Title :
Kalman filter and redundant observer comparison for sensorless PMSM velocity control
Author :
Kaux, S. ; Fadel, M.
Author_Institution :
Laboratoire d´Electrotechnique et Electron. Industrielle, LEEI UMR INPT-CNRS, France
Abstract :
This paper presents a comparison made on two observers for permanent magnet synchronous machine control without mechanical sensor. The well known Kalman filter is presented, the structure estimating currents, velocity and position for PMSM is exposed. A redundant observer structure is described. This completely different structure allows building back-emf, velocity and position estimation. The two structures are compared and the synthesis of correction coefficients is discussed as well as results obtained for variable speed control of a PMSM drive. Critics and difficulties are listed and robustness of the two structures is analyzed to conclude on performances of the two observer structures and facility to be implemented.
Keywords :
Kalman filters; angular velocity; angular velocity control; machine control; observers; permanent magnet motors; robust control; synchronous motor drives; Kalman filter; back-emf; current estimation; mechanical sensor; permanent magnet synchronous machine control; position estimation; redundant observer comparison; sensorless PMSM drives velocity control; variable speed control; velocity estimation; Convergence; Inverters; Magnetic variables control; Mechanical sensors; Mechanical variables control; Observers; Permanent magnet machines; Robustness; State-space methods; Velocity control;
Conference_Titel :
Industrial Electronics, 2005. ISIE 2005. Proceedings of the IEEE International Symposium on
Conference_Location :
Dubrovnik, Croatia
Print_ISBN :
0-7803-8738-4
DOI :
10.1109/ISIE.2005.1529041