The coordinated control method of AC/DC hybrid distribution network with flexible interconnection devices is one of the key technologies to ensure the high efficiency and reliable operation. A novel coordinated control method is proposed for AC/DC hybrid power network. First

nine different operation modes are divided according to the operation states at AC side of flexible interconnection devices

and the control strategy for interconnection devices

storage units

and photovoltaic power generation units is proposed depending on control requirements of different operation modes. In order to solve the deviation problem of DC voltage

the two-layer control of DC voltage is applied to compensate. At the same time

in order to avoid deep discharge

the load shedding algorithm based on the state of charge with buffer is proposed

which can effectively reduce the fluctuation of DC voltage

and for avoid deep charging

the photovoltaic power generation units are simultaneously converted into hierarchical DC droop control to keep DC voltage constant and achieve power sharing depending on capacity proportion. Finally

the simulation model is built by simulation software

and the simulation results show the effectiveness and feasibility of the proposed method.