Method for building offshore wind farm

Abstract

The invention discloses a method for building an offshore wind farm. The method comprises the following steps of: 1) fixing cofferdam piles (11) on a seabed of a predetermined sea area according to a predetermined rule; 2) fixing a water stop tie (12) between two adjacent cofferdam piles (11) to form a fan island cofferdam; 3) filling substances into the fan island cofferdam to form a fan island (1); and 4) mounting a wind generating set on the fan island (1) according to a method for mounting the wind generating set on land. The method for building the offshore wind farm not only can lower the degree of dependence upon weather conditions in the building process of the wind farm and lower the building cost and the maintenance cost of the offshore wind farm, by also realizes high reliability of the built offshore wind farm, prevents the built wind generating set from being impacted by ships and prolongs the service life of the offshore wind farm.

Description

technical field [0001] The invention relates to the construction field of wind farms, in particular to a method for building offshore wind farms. Background technique [0002] With the rapid development of my country's economic construction, electric energy has a greater impact on economic construction and people's lives, and wind power generation, as one of the various power generation methods, has attracted more and more attention. [0003] Wind power generation is a power generation method that converts the kinetic energy of the wind into mechanical energy, and then converts the mechanical energy into electrical energy. Due to the abundance of wind resources in the sea, more and more wind farms are built on the sea. In the construction of wind farms at sea, the installation of wind turbines (that is, wind power generators) is an important step, which usually needs to be completed by means of large engineering ships. Wherein, the installation of the wind turbine refers t...

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Problems solved by technology

[0004] However, large engineering ships are used to install wind turbines. On the one hand, since the current large engineering ships are not dedicated to the installation of wind turbines, some resources will inevitably be wasted during the construction process, and the installation cost is high; on the other hand, , due to the large size and weight of large engineering ships, the draft of the ship is relatively high. When operating in shallow seas, they can only travel under the condition of full tide. At the same time, the work of large engineering ships is also more affected by the weather. Large, in windy weather or strong wind season, engineering ships will not be able to carry out the construction of offshore wind farms. During the construction of offshore wind farms, it is inevitable that the weather will be unfavorable or the work cannot be started, which will lead to wind farm construction. The extension of the construction period, and further lead to an increase in construction costs

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