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This paper introduces an advanced monitoring and diagnosis technique for the detection of incipient stator electrical faults in doubly-fed induction generators (DFIG) used in wind turbines. Thanks to the measurability of DFIG rotor side electrical characteristics, a new diagnostic method based on the frequency analysis of rotor instantaneous power spectrum is proposed. Theoretical analysis shows that,...
In this paper, a novel nonlinear control design method for the wind turbine (WT) with doubly fed induction generator (DFIG) using differential geometry theory is proposed. The WT with DFIG is represented by a third-order model where electromagnetic transients of the stator are neglected. Then the model is exactly linearized using the coordinate transformation in differential geometry theory. Since...
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