POWER AND COMMUNICATIONS NETWORK CONVERGENCE SYSTEM, AND CONTROL METHOD THEREIN

An power and communications network convergence system is provided. The system includes: wireless base stations; and direct-current grid groups, each direct-current grid group belonging to a cell formed by a corresponding one of the wireless base stations. Each direct-current grid in the direct-current grid group has a direct-current power line to which electric power devices including a power generation device and a power storage device are connected, and performs, based on state information on each electric power device wirelessly communicated among the electric power devices, first control for reducing power fluctuations over time in the direct-current power line. A first direct-current grid of direct-current grids belonging to a cell performs, based on state information on each direct current grid wirelessly communicated among the direct-current grids, second control for interchanging power with a second direct-current grid belonging to the cell. If a power situation of a first direct-current grid group belonging to a first cell and a power situation of a second direct-current grid group belonging to a second cell satisfy a first preset condition, the first direct-current grid group performs third control for interchanging power with the second direct-current grid group.