In view of the wind turbines’ unbalance protection tripping of wind farm caused by electrified railway’s negative-sequence component in the same area

based on the consideration of traction station’s negative-sequence characteristics and wind turbine’s power change under the action of negative-sequence component

the effect on wind turbine export’s voltage and current unbalance factor were analyzed.The power system which referenced Xinjiang Bozhou grid structure was established

the mechanism of electrified railway leading wind farm to trip off network was analyzed. The results show that when the negative-sequence produced by electric railway stay remains

the wind turbine export’s voltage and current unbalance factor present different levels due to the different types of wind turbine and variety of output;Wind turbines trip off the network not only related to voltage unbalance protection

in the case of the VUF of PCC close to the GB standard

after the current unbalance factor of wind turbines which exceeds 5% tripping could trigger chain reaction leading to wind farm trip off the network.