ONLINE FAULT DETECTION METHOD AND DEVICE FOR ARMATURE SIDE OF BRUSHLESS EXCITER

摘要

An online fault detection method and device for an armature side of a brushless exciter. The method comprises: collecting an exciting winding current of the exciter, calculating a direct current component and a total harmonic amount of the exciting winding current, calculating a related ratio of the total harmonic amount to the direct current component, and performing fault determination by comparing the calculated related ratio with a corresponding set threshold value. The detection method and device are used for implementing online fault detection for the armature side of the brushless exciter.