The utility model relates to the technical field of semi-submersible converter stations, and discloses a novel
deep sea semi-submersible converter
station, which comprises a converter
station part, an upper platform, a
mooring part and a
ballast part, the converter
station part is connected with the upper platform through a track, the
ballast part comprises a watertight compartment and a high-pressure gas compartment, and the high-pressure gas compartment is connected with the upper platform through a track. The vertical column is fixedly connected with the floating box, the power part comprises a power cabin and a full-revolving
propeller, the gravity anchor and the gravity chain locker are installed in the middle of the floating box, the holding power anchor and the holding power chain locker are installed on the lower portion of the vertical column, and the high-pressure gas cabin is connected with the chain locker through a pipeline. The modularized design of the upper portion shortens the whole construction period, the
maintainability and reliability of the converter station are enhanced, the platform further has the self-propulsion capacity and does not need to be assisted by tugboats, high-pressure air is introduced into the chain locker, water cannot enter the platform
underwater, personnel can enter the chain locker at any time for maintenance, and the service life of equipment is prolonged.