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.