Abstract: In the DC microgrid, the increasingly controllable source-storage-load requires an efficient coordination method to give full play to its grid-connected support potential. After the controllable load and fan are classified into energy storage, the charge and discharge response of the energy storage device can be virtualized,which is convenient to improve the energy management and operation capability of the system. In this paper,firstly,the conversion relationship between the rotational kinetic energy of the controllable load,the fan and the energy of super capacitor is analyzed,and the virtual energy storage models derived from the load and the fan are established respectively. Secondly,to achieve long-term economic operation of the system,a sourcestorage-load coordination optimization model based on virtual energy storage is established considering load gains,energy storage losses and wind regulation costs to calculate virtual capacitance values in different periods. Furthermore, by dividing the operating area of the DC microgrid,a coordinated control method for virtual energy storage is proposed to improve the voltage stability of the system. Finally,based on a typical DC microgrid simulation system,it is verified that the proposed control strategy can improve the economic benefits of the microgrid and the stability of the DC voltage significantly.