Estado del arte y nueva variable de estado para diagnosticar la excentricidad en generadores sincrónicos.

Eccentricity in salient poles synchronous generators (SPSG) is a failure mode that requires particular attention due to its possible catastrophic consequence. To diagnose it, specialists have focused on the frequency spectrum of the stator current, obtained from the Fast Fourier Transform (FFT). Other techniques, such as transient current analysis, flux and vibration have proven to be valuable sources of information. The paper aims to illustrate the state of the art on the diagnosis of eccentricity in SPSG and proposes a new state variable for the diagnosis of this failure mode with the asset in service. As a result of the work on the technology and the theoretical research carried out, it is concluded that it is possible to diagnose the eccentricity of the electric generator from the behavior of the neutral current of the machine in operation. [ABSTRACT FROM AUTHOR]