Offshore wind power device arbitrary-direction vibration absorbing system

Abstract

The invention discloses an offshore wind power device arbitrary-direction vibration absorbing system. The vibration absorbing system involves a shell, and vibration absorbing components, wherein the vibration absorbing components are arranged in the shell; each vibration absorbing component comprises a mass block, and damping blocks, wherein the mass block is arranged in the shell, the damping blocks used for damping are symmetrically arranged in the horizontal direction, the vertical direction and the height direction of the mass block, and the damping blocks are connected with the mass block; and each electromagnetic energy collection component comprises coils and magnets, wherein the coils are arranged on two opposite sides of the outside of the shell correspondingly, the vibration absorption components are located between the corresponding coils, and the magnets are arranged on the corresponding mass block. The offshore wind power device arbitrary-direction vibration absorbing system has the advantages of being simple in structure, good in vibration absorption performance and the like. The system belongs to the technical field of offshore electricity generation vibration control.

Description

technical field [0001] The invention belongs to the technical field of vibration control for offshore power generation, and in particular relates to a vibration-absorbing system in any direction of an offshore wind power device. Background technique [0002] As a clean and renewable energy, wind energy is getting more and more attention. Offshore wind resources are more abundant, and the sea area is extensive, and installing wind turbines on the sea can avoid visual impact and noise pollution, so people are beginning to pay attention to and implement offshore wind power generation. At present, offshore floating wind turbines are generally installed on the sea to generate electricity. The marine environment is very complex, and the structure of offshore floating wind turbines is subjected to various random external loads that vary with time and space in the marine environment, such as wind, waves, sea ice, etc., and sometimes even earthquakes. Existing offshore floating win...

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Problems solved by technology

The offshore wind power installation is a 6-degree-of-freedom system because of the complex external loads. The model studied now is too simplified. The study only considers the single-degree-of-freedom vibration caused by a single force in a simple situation, and it is impossible to analyze the offshore wind power installation. Analyze the main and relatively complex motion forms such as pitch and heave on the sea surface

Therefore, the research is relatively simple. Under the motion forms such as pitching and heaving, the force and vibration analysis results of offshore wind power installations have large deviations, which leads to poor vibration absorption measures, poor stability of offshore wind power installations, and poor power generation performance. affected

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