To mitigate the impact of random fluctuation of wind power on micro-grid and enhance the controllability of wind power

an optimal scheduling strategy of the wind-hydro-storage micro-grid（WHSM） based on frequency division compensation is proposed.According to the output bandwidth of a hydropower unit

multi-scale decomposition of the wind power signal is performed by the wavelet decomposition method to obtain the primary power command of the hydropower unit and energy storage system.Then

according to the climbing ability limit of the hydropower unit

the primary power command is modified to get the final power command.A WHSM simulation model based on MATLAB/Simulink is established

and the control effects of the proposed scheduling strategy and the existing strategy are compared.The result shows that the proposed scheduling strategy can reduce the required capacity and the configuration cost of the energy storage system

improve the transition of the hydropower unit in the WHSM

which is conducive to stable operation of the WHSM

and increase controllability of wind power to make the active power output of the WHSM smoother.