A kind of semisubmersible-type floatation type blower foundation suitable for big megawatt-level wind unit

The present invention provides a kind of semisubmersible-type floatation type blower foundation suitable for big megawatt-level wind unit, includes: three flares or the column of introversion, three inclinations buoyancy tanks, heave plate；The first end for tilting buoyancy tank is connected with each other, and is connect at the top of second end and corresponding column；The sectional area for tilting buoyancy tank first end is greater than the sectional area of second end；Lateral bracket is connected between the bottom of adjacent columns；It can be respectively equipped with heave plate in the corner location being made of each column bottom and its two side stand, or the same heave plate can be connected by the connecting rod that each column bottom end longitudinally extends；The basis is connect by mooring system with seabed, and mooring system one end is connected in the middle part of column or top, one end are anchored at seabed.The present invention can be applicable in the sea area that the depth of water is greater than 40m, and the high-power marine power generation unit of 6MW grades of installation or more after improvement under the premise of floatation type air-blower control strategy, guarantees semisubmersible-type floatation type blower foundation overall performance and application, has the market competitiveness.