Algerian Journal of Signals and Systems
Volume 2, Numéro 2, Pages 63-74
2017-06-30

Fault Diagnostic Of Doubly-fed Induction Generator In Stator Inter-turn Short Circuit Based Wind Turbine

Authors : Boumalha N. . Hachelef R. . Kouchih D. . Tadjine M. . Boucherit M. S. .

Abstract

This paper describes a Fault Tolerant Control (FTC) of a doubly-fed induction generator (DFIG) based wind turbine model suitable for the simulation of this generator in the mode faulty mode. The dynamic model of a DFIG with stator inter-turn short circuit fault is proposed. A model (abc) is developed, which can represent both the healthy and faulty conditions. The DFIG is directly connected to the grid whereas the rotor winding is fed by back-to-back PWM converters .the Control schemes for active and reactive power regulation are designed firstly. Under different wind speed, maximum power point tracing (MPPT) control is implemented to ensure the optimum active power output. The numerical simulation developed in Matlab/Simulink studies the effects of stator inter-turn short-circuit in the DFIG. Afterward, the application of Approach technique of Adaptive Obs.

Keywords

Wind energy, DFIG, short circuit, vector control, inter-turn short circuit, fault diagnosis