Abstract
The failure which can’t be quickly removed in 35kV system of wind farm is one of the main reasons for the shutting down of the wind turbine. The differential current protection installed in 35kV Line of wind farm can remove the fault quickly, shorten the system fault time and avoid the shutting down of non-fault wind turbines, so that the stability of power system integrating wind farms is enhanced. The simulation model of a power system integrating wind farms is set up in MATLAB, and the effects of differential line protection are compared with traditional three-phase current protection for various faults on 35kV lines of wind farm. The results show that the differential protection can enhance the stable operation ability of wind farm.
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