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As in cutting-in control process of pitch-controlled doubly-fed wind power generation system, the synchronized control strategy of DFIG can only regulate the stator voltages before cut in, the performance of pitch control for maintaining wind turbine rotating speed is studied, in order to prevent turbine over-speed. For accomplishing the whole cutting-in process simulation, a method based on modeling...
In this paper, we will tackle the problem of current sensor Fault Diagnosis and Isolation (FDI) of a doubly feed induction generator in wind turbine. First of all, the use of a Kalman filter to detect sensor fault will be illustrated. Then, the detection and the isolation of multiple sensor faults will be treated using a Kalman filter bank in a Generalized Observer Scheme. The fault assessment will...
This paper deals with the interaction analysis of a doubly fed induction generator (DFIG) based wind turbine (WT) with the electric power system during different disturbances in the grid. In the first part of the paper the modeling process of the WT with DFIG using Matlab-Simulink will be introduced and the control system will be presented. In the second part of the paper a case study including different...
This paper proposes a coordinated control of the rotor side converters (RSCs) and grid side converters (GSCs) of doubly-fed induction generator (DFIG) based wind generation systems under unbalanced voltage conditions. System behaviors and operations of the RSC and GSC under unbalanced voltage are illustrated. To provide enhanced operation, the RSC is controlled to eliminate the torque oscillations...
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