Method and apparatus for processing signals for eccentricity detection in a synchronous machine

摘要

The method involves transmitting output signals of a filtration unit to an envelope extraction unit to produce its output signals that are transmitted to a harmonic analysis unit (32) to find their mean, temporal, and spatial harmonic values. The values are transmitted to a calculation unit (33) to calculate values of static and dynamic eccentricities and radial load value not compensated due to the eccentricities. An induced voltage at a terminal of a measurement coil is deducted and the voltage is transmitted to the filtration unit to eliminate high frequency components at a fundamental frequency of a synchronous machine. The output signals of the extraction unit are images of envelopes of signals of the filtering unit. An independent claim is also included for a device for continuously monitoring a synchronous machine for the implementation of a method for processing induced voltage signal.