| 摘要 |
A method for discovering demagnetisation faults of a permanent magnet synchronous generator, such as a wind power generator. The method is performed during operation of the synchronous generator and includes measuring the vibration of the stator (11), performing a frequency analysis of the vibration (12), and deducing whether the generator suffers from demagnetization of a permanent magnet (13), from the vibration analysis. Moreover, geometric eccentricity faults and electric short circuit faults may also be detected from the vibration (12). |
