Power grid structure and power grid power supply control method

The invention relates to the technical field of power grid planning operation, and particularly relates to a power grid structure and a power grid power supply control method. The power grid structure comprises two looped networks, the two looped networks operate independently, the number of power supply lines of a power distribution room is two, and the two power supply lines are connected with the two looped networks respectively for operation. Therefore, when one looped network stops running, the two power supply lines can be connected together through the interconnection switch connected with the two power supply lines, the purpose of power supply switching is achieved, continuous running of the power supply lines is guaranteed, and reliability is greatly improved. According to the embodiment of the invention, the structure is also provided with a first switching station, and the first switching station is used for connecting the distributed power supply connected with the first switching station to any p