Title :
EKF-based sensorless IPM synchronous motor drive for flux-weakening applications
Author :
Bolognani, S. ; Tubiana, L. ; Zigliotto, M.
Author_Institution :
Dept. of Electr. Eng, Padova Univ., Italy
Abstract :
The paper deals with the experimental realisation of a sensorless interior permanent magnet (IPM) synchronous motor drive. The motor has been specifically designed to get a wide flux-weakening region, to minimise the drive power rating in spite of a wide speed range. Position and angular speed of the rotor are obtained through an extended Kalman filter (EKF). The estimation algorithm requires neither the knowledge of the mechanical parameters, nor the initial rotor position. In the paper, particular emphasis is placed on control algorithms, that are complicated by the motor anisotropy and that have been specifically studied to enhance the overall system performance.
Keywords :
Kalman filters; machine control; magnetic anisotropy; magnetic flux; parameter estimation; permanent magnet motors; synchronous motor drives; EKF-based sensorless IPM synchronous motor drive; control algorithms; estimation algorithm; extended Kalman filter; flux-weakening applications; initial rotor position; interior permanent magnet synchronous motor; mechanical parameters; motor anisotropy; power rating minimisation; rotor angular speed; rotor position; Anisotropic magnetoresistance; Inductance; Induction motors; Permanent magnet motors; Robustness; Rotors; Sensorless control; Stators; Synchronous motors; Voltage;
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.2002.1044075
