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Open Switch Fault Detection and Fault Tolerant of Power Converter Fed DFIG in WECS

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This paper work addresses the detection of converter open switch faults and the fault tolerant of power converters fed Doubly Fed Induction Generator (DFIG) in Wind Energy Conversion Systems (WECS). The stator flux-oriented vector control algorithm is used to control active and reactive power supplied by the stator windings. The mean value of the rotor current diagnosis technique is adopted for fault detection. The fault tolerant topology used for service continuity is that with a redundant leg. The simulations are performed using the Matlab / Simulink environment and Sim power. The fault operation is analyzed and the detection method and fault-tolerant topology used are tested with encouraging results.
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DFIG; Wind Turbines; Open Switch; Detection; Fault Tolerant; Redundancy

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