CONTROL DEVICE FOR A WIDE SPEED RANGE INDUCTION MACHINE, CARRYING OUT A CONTROL BASED UPON A FLUX ESTIMATION PERFORMED BY MEANS OF A LUENBERGER STATE OBSERVER, AND METHOD FOR POSITIONING THE EIGENVALUES OF SAID STATE OBSERVER

摘要

The control device carries out a control of the induction machine based upon a flux estimation performed by means of a Luenberger state observer, the estimation error of which can be defined by means of a matrix having a plurality of eigenvalues, the magnitude of each of which is proportional to the magnitude of a respective pole of the induction machine, and the phase of each of which is rotated with respect to the phase of the corresponding pole of the induction machine by a given angle of rotation.