Fault monitoring method and system for generator carbon brush

The invention discloses a generator carbon brush fault monitoring method and system. The method comprises the following steps: establishing a generator carbon brush operation data monitoring system; based on a generator carbon brush operation data monitoring system, historical carbon brush operation data of a faulted generator is obtained for pre-screening processing, and training carbon brush fault feature variables are obtained; establishing an initial carbon brush fault analysis model, inputting the training carbon brush fault feature variables into the initial carbon brush fault analysis model for accurate training, and obtaining an optimal carbon brush fault analysis model after training; continuing to obtain current carbon brush operation data in real time based on the generator carbon brush operation data monitoring system, and inputting original characteristic variables corresponding to the current carbon brush operation data into the optimal carbon brush fault analysis model; and analyzing, judging a