Title :
A robust method for flux weakening operation of DTC induction motor drive with on-line estimation of the break-down torque
Author :
Casadei, Domenico ; Serra, Giovanni ; Tani, Angelo ; Zarri, Luca
Author_Institution :
Dept. of Electr. Eng., Bologna Univ.
Abstract :
A method for the flux weakening operation of DTC induction motor drives is proposed. The flux reference is adjusted on the basis of the torque error, thus determining a spontaneous flux weakening. For implementing this algorithm, it is necessary to estimate the maximum torque that the induction machine is able to generate at any speed. The main features of the proposed system are little dependency on machine parameters and smooth transition into and out of the flux weakening operation mode. Experimental tests demonstrate the effectiveness of the control scheme
Keywords :
induction motor drives; machine control; magnetic flux; torque control; DTC; break-down torque; flux reference; flux weakening operation; induction motor drive; online estimation; torque error; Hysteresis motors; Induction machines; Induction motor drives; Induction motors; Magnetic flux; Regulators; Robustness; Stators; Torque; Voltage; Direct Torque and Flux Control; High speed drive; Highly dynamic drive; Induction motor;
Conference_Titel :
Power Electronics and Applications, 2005 European Conference on
Conference_Location :
Dresden
Print_ISBN :
90-75815-09-3
DOI :
10.1109/EPE.2005.219305
