Energy storage device plays an important role in the field of smoothing wind power fluctuation and improving wind power absorption.It is difficult for the present common super-capacitor-battery mixed energy storage system to break through the bottleneck of wind power absorption due to small capacity caused by the cost factor.Therefore

the cryogenic liquefied air energy storage system（LAES in short） is introduced and its such advantage as high capacity

low cost and free from influence of geographical restriction is used so to enhance effectively wind power absorption ability of the system.Firstly

the compressed air energy storage module of the cryogenic liquefied air energy storage system and the mathematical module of expansion power generation module are set up;secondly

the wind power absorption strategy based on cryogenic energy storage is proposed

the wind power is redistributed and combined in accordance with dynamic response feature of energy storage and release chain of cryogenic energy storage system and based on the requirement of wavelet packet decomposition theory to the compliance of time scale requirement and

in accordance with wind power grid connection standard

the charging and discharging strategy of eryogenic energy storage system considering network fluctuation suppression.The effectiveness of the proposed wind power absorption strategy based on the eryogenic liquefied air energy storage systemis verified by the simulation result

which provides new idea on the application of energy storage in the wind power absorption.