Mobile offshore wind power station

Abstract

The invention discloses a mobile offshore wind power station. The mobile offshore wind power station comprises a ship and a plurality of vertical axis wind turbine generating sets. Towers of the vertical axis wind turbine generating sets are fixed on the ship and are used for utilizing wind power to generate electricity. The ship is provided with a navigation power mechanism and a plurality of mooring anchors. The navigation power mechanism is used for enabling the ship to sail to a designated sea area. The mooring anchors are used for enabling the ship to anchor at the designated sea area. The mobile offshore wind power station can flexibly and conveniently reach the designated sea area according to requirements, is free from restraint of the depth of seawater, capable of effectively and reasonably utilizing rich wind power on the sea, and favorable for flexibly avoiding complex sea conditions, ensures safety of wind power generation equipment to the maximum extent, reduces generating cost, and is high in reliability, strong in practicality, small in installing difficulty, capable of easily maintaining balanced gravity center, long in service life, high in safety and reliability, and favorable for reducing the generating cost.

Description

technical field [0001] The invention relates to offshore wind power generation facilities, in particular to a mobile offshore wind power station. Background technique [0002] The formation characteristics of wind energy determine that offshore wind energy resources are far more abundant than land wind energy resources, especially those in deep sea are more abundant, and the development prospect of using them for power generation is huge. However, most of the existing wind turbines are installed on the ground in a rigid fixed way, which limits the application of wind power technology in deep sea (mainly because the rigid fixed foundation is difficult to construct and the construction cost For this reason, technicians in the industry have developed a variety of floating wind turbines that can be adapted to deep seas, such as the "offshore wind power generation device" disclosed in Chinese patent documents (publication number: CN 201416515, publication date: March 2010 March ...

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Problems solved by technology

However, most of the existing wind turbines are installed on the ground in a rigid fixed way, which limits the application of wind power technology in deep sea (mainly because the rigid fixed foundation is difficult to construct and the construction cost For this reason, technicians in the industry have developed a variety of floating wind turbines that can be adapted to deep seas, such as the "offshore wind power generation device" disclosed in Chinese patent documents (publication number: CN 201416515, publication date: March 2010 March 3), "Anchoring Semi-submersible Siamese Base Offshore Wind Turbine Set" (public number: CN 102506012, open date: June 20, 2012), "Flexible Floating Foundation for Offshore Wind Turbine Set" (public number: CN 102235011, publication date: November 9, 2011), etc. Although these technologies can enable wind turbines to be installed and generate electricity in deep sea, they use floating technology, and the foundation of the floating body itself does not have a navigation power mechanism, so it cannot reach the designated sea area. It needs to be towed by tugboat, and anchored when towed to the designated sea area

We know that the sea conditions are very complicated. Sea conditions such as typhoons in summer and ice floes in winter will pose a fatal threat to wind turbines floating on the sea. Effectively avoiding harsh sea conditions, it is easy to cause serious damage to wind turbines under harsh sea conditions, resulting in a substantial increase in power generation costs, reliability, and poor practicability; moreover, in order to pursue large-scale offshore wind turbines, they are assembled on the basis of deep-sea floating bodies Most wind turbines usually use horizontal-axis wind turbines. Due to the deviation of the center of gravity of horizontal-axis wind turbines, it is difficult to achieve center of gravity balance on the basis of floating bodies, and installation is very difficult. Successfully installed wind turbines are constantly The thrust of the wind energy generates a large overturning moment, which destroys the structural strength of the floating body foundation, causing serious rollover accidents of the wind turbine as a whole, causing heavy losses, and further leading to a substantial increase in power generation costs.

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