Random fluctuation of wind power will cause a great negative impact on the normal operation of power grid

which can be effectively suppressed by an energy storing system.In view of above issue

a smoothing control strategy for hybrid energy system（HESS） using self-adaptive ensemble empirical mode decomposition transform to allot frequency and energy storage state to adjust the power values of the energy storage system is proposed.The control strategy can achieve self-adaption of wind power and obtain primary distribution of wind power grid-connection power and internal power of HESS.At the same time

the control strategy of energy management is used to make the HESS primary power instructions secondary modification inside HESS.It is shown by the simulation result that the proposed decomposition can achieve optimal decomposition

the proposed energy management is able to achieve secondary modific ation the power of HESS

mitigate wind power fluctuation.