With the rapid development of wind power

the difference in frequency characteristics caused bythe fluctuation of wind power output causes the original low frequency load shedding scheme no longer ap-ply to the grid under high wind power permeability. In this paper

Xinjiang power grid with high wind pow-er penetration is taken as the background

the frequency characteristic analysis is performed for the wholeand partial grid in Xinjiang based on PSASP

the adjustment proposal on shortening action frequency difference and action delay for the whole grid in Xinjiang is proposed. As for the partial isolated grid with weakgrid structure and low regulation performance

the cut load ratio is specified as per interval difference andload cut shall be reduced as much as possible under the condition of assuring fast recovery of system. Final-ly

the low frequency load shedding scheme that satisfies the frequency characteristics of the whole net-work and considers the frequency difference of the isolated network in the local area is determined. The ra-tionality of the proposal is verified by the simulation results of examples.