Voltage Sag Ride through of wind driven DFIG during Grid Interconnection/Faults
نویسندگان
چکیده
Energy is one of the most prominent factors in shaping the civilization of today. Under consideration for nonconventional energy source wind energy has turned out to be a leading source of energy. In recent years there has been a significant global commitment to develop a clean and economical alternative sustainable power source especially from wind. In this field of development wound rotor induction generator has seen considerable success. One scheme of wound rotor induction generator is realised when a converter cascade is used between the slip rings terminals and the utility grid to control the rotor power. This configuration is called Doubly Fed Induction Generator (DFIG). In this paper analyses the voltage sag in a grid connected to a DFIG. The paper implements a control technique to mitigate the voltage sag generated due to a fault. Finally the paper concludes with an inference of the voltage profile generated by a DFIG and a vivid study of various parameters at varied conditions. Keywords— Doubly-fed induction generator (DFIG), protection, Wind power generation, voltage sag, fault.
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