It has become a new challenge for the grid connected wind farm to actively participate in the spinning reserve control to both main system operator and wind farm operator. Taking the rotor inertia kinetic energy of variable speed wind turbines into the wind farm spinning reserve capacity is suggested to make full use of rotor inertia energy to participate in the frequency control or emergence reserve control. Based on the actual operation scenarios of wind farm

this paper proposes optimal reserve mode and optimal scheduling mode

and the associated mathematical optimal model. Case studies demonstrate that the optimal reserve mode can minimize the wind power load shedding with considerable economic benefits. In the meantime

the optimal scheduling mode can maximizing the wind farm spinning reserve capacity

which is very useful for the stability of an electrical power system.This work is supported by National Natural Science Foundation of China (No. 51377047)

Fundamental Research Funds for the Central Universities (No. 2013B27614) and Funding of Jiangsu Innovation Program for Graduate Education (No. CXLX13_226).