In view of the coordination problem of different types of reactive power compensation for wind farm

in this paper the continuous/discrete reactive power coordination and optimization method of substation with considering continuous reactive power reserve value is proposed. The method adopts a doublelayer coordinated optimization method to solve the setting of HV side of substation with minimum active power of the system as target. The benefit coefficient of continuous reactive power reserve is introduced

and the value of continuous reactive power reserve is treated differently in accordance with magnitude of wind power output. Through continuous/discrete reactive power compensation coordination optimization model

the capacity of discrete reactive power compensation and continuous reactive power compensation is solved. Based on actual examples and compared with the existing method model

this method achieves the coordination of power grid economy and safety

and has superiority.