Flexible direct-current transmission bipolar main wiring device

The utility model relates to a flexible direct-current transmission bipolar main wiring device. The flexible direct-current transmission bipolar main wiring device includes two converter stations, two alternating current power systems and a metal wire, wherein the two converter stations are of the same structure and are respectively composed of a first transformer, a first converter device, a second converter device and a second transformer which are connected in series with one another sequentially; the first transformer and the second transformer are connected in parallel at one end of a bus; the other end of the bus is connected with a corresponding alternating current power system; the first converter device of the first converter station is connected with the fist converter device of the second converter station through a linear cable; the second converter device of the first converter station is connected with the second converter device of the second converter station through a linear cable; one end of the metal wire is connected with a line between the first converter device and the second converter device of the first converter station; and the other end of the metal wire is connected with a line between the first converter device and the second converter device of the second converter station. The flexible direct-current transmission bipolar main wiring device provided by the utility model has the advantages of high safety in layout and reliable operation, and can be widely applied to the flexible direct-current transmission field.