Offshore wind driven generator set and mounting method thereof

Abstract

The invention discloses an offshore wind driven generator set and a mounting method thereof. The offshore wind driven generator set comprises a semi-submersible type floating body, a ship type platform, a tower, a cabin, impellers, vertical tail wings, an inclined supporting rod and the like, wherein the semi-submersible type floating body comprises a front floating barrel and at least one rear floating barrel; the upper part of the front floating barrel is conical, is inserted into a yaw tapered rotary bearing, and an anchoring system is connected to the middle lower part of the front floating barrel; a truss structure is arranged above a water level of each rear floating barrel, a dowel pin is arranged at the top of each rear floating barrel and is rigidly connected with a positioning device; a pressure equalizing tube is connected with each rear floating barrel. The ship type platform adopts a gabbart mode, the yaw tapered rotary bearing is arranged on the front section of the ship type platform, the tower is mounted behind the ship type platform, and symmetrical vertical tail wings are arranged at the tail part of the ship type platform. When the impellers are distributed in upwind direction (downward direction) in front (back) of the tower, the inclined supporting rod is mounted on the leeside surface (windward side surface) of the tower. The offshore wind driven generator set can be structurally mounted in a shipyard, so that the offshore mounting difficulty is lowered and the cost is reduced, the mechanical yaw failure rate is low and the reliability is high. The tower structure has an obvious damping effect, and the anti-overturning capability of the tower can be improved by the inclined supporting rod.

Description

technical field [0001] The invention relates to an offshore wind power generating set and an installation method thereof, in particular to an offshore wind power generating set adopting a floating support structure and an overall yaw of a wind turbine and an installation method thereof. Background technique [0002] Offshore wind turbines usually consist of three parts: tower head, tower frame and support structure. Since offshore wind resources are mostly distributed within 5-50km from the coast, and the water depth in these areas is mostly more than 50m, according to the current practice of fixing various through-pile structures on the seabed in offshore wind farms, compared with onshore wind farms, offshore wind farms Among the total construction costs, the investment in supporting structures is significantly higher than that of offshore and onshore wind farms. In addition to the construction cost of supporting structures, the installation cost of offshore wind turbines ...

AI Technical Summary

Problems solved by technology

However, multiple units are installed together and facing the wind at the same time, so there is turbulence caused by the wind rotors and interference with the wind flow that hits the adjacent wind rotors, so the distance between the wind turbines needs to be large enough, and a larger boat platform

Otherwise, it will lead to insufficient capture of wind energy and waste of resources, but a larger ship-type platform will inevitably bring about problems such as poor stability

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