Single-optical-fiber bidirectional communication method for high-voltage direct current transmission

The invention provides a single-optical-fiber bidirectional communication method for high-voltage direct current transmission. The method comprises the following steps that an optical fiber transceiver is selected; optical fibers with the wave length matched with that of the optical fiber transceiver are selected and laid; bidirectional communication is conducted through one single optical fiber. According to the single-optical-fiber bidirectional communication method for high-voltage direct current transmission, the optical fiber transceiver is adopted, so that the number of optical fibers is reduced; at the valve-base controller side and the valve module side, single-direction optical transceivers are replaced by the single-fiber-optical bidirectional transceiver, the number of the single-direction optical transceivers is two times as many as that of the single-fiber-optical bidirectional transceivers, the number of optical fibers in the engineering is reduced by half, and therefore the purposes that cost is reduced, the workload is reduced, space is saved, and maintenance is convenient are achieved.