| abstract |
The present invention relates to a method for diagnosing an abnormality of a synchronous generator, and more particularly, measuring a stator voltage of the synchronous generator; Decomposing the measured voltage into a normal component voltage and a reverse phase component voltage; And calculating a ratio of the reverse phase component voltage to the normal component voltage based on the decomposition step.n n n The present invention relates to a method of diagnosing an abnormality of a synchronous generator, wherein the abnormality of the synchronous generator is diagnosed through a ratio of the reverse phase component voltages.n n n According to the present invention, it is possible to diagnose whether an automatic voltage regulator (AVR: Automatic voltage regulator or exciter (AVR)), which is essentially provided in the winding type synchronous generator, is operating normally. It is possible to diagnose the abnormality of the synchronous generator by integrally detecting factors such as short-circuit (interlayer short, phase short), magnetic flux distribution distortion, and stator winding resistance unbalance. |