Condition monitoring of wind generators

This paper focuses on the experimental investigation for incipient fault detection and fault detection methods existing in the literature suitably adapted for use in wind generator systems using doubly fed induction generators (DFIGs). Three main experiments (one for stator phase unbalance, one for rotor phase unbalance and one for turn-to-turn faults) have been performed to study the electrical behaviour of the DFIG. The article aims to provide wind generators with further documentation for an advanced condition monitoring system, in order to avoid undesirable operating conditions and to detect and diagnose incipient electrical faults.