METHOD OF MEASUREMENT OF PARAMETERS OF A C ELECTRIC MACHINE AND DEVICE TO IMPLEMENT IT Russian patent published in 1997 - IPC

FIELD: automatic control systems of electric drives. SUBSTANCE: in compliance with method of measurement of parameters of A.C. electric machine currents and voltages in windings of machine are measured, by them emf-es are calculated, they are filtered and compared in phase and amplitude with filtered emf-es of electron model plotted by equations of machine in rotating system of coordinates. Angular speed and angular position are calculated by results of comparison. Calculated angular position is used in the capacity of angular position of rotating system of coordinates of electron model across which output moment and magnetic flux linkage are obtained. EFFECT: increased accuracy of measurement. 6 cl, 6 dwg