Condition monitoring of a wind turbine DFIG by current or power analysis

摘要: As wind energy assumes greater importance in remote and offshore locations, effective reliable condition monitoring techniques are required. This paper proposes a method analysing electrical signals from the stator terminals of wound rotor induction generators commonly used turbines. Analytical equations have been derived for frequency content line current total instantaneous power healthy faulty these to analyse test rigs steady state. Analysis at constant speed yields set equation constants which describe frequencies most interest as observed rig environments. Having discovered consistent group fault data is then demonstrated variable show variability those with speed. It concluded that tracking dependent will be an way monitor health generator turbine. (7 pages)