A Whole Coupling Analysis Method of Offshore Wind Turbine Under Earthquake

An offshore wind turbine, coupled analysis technology, applied in special data processing applications, design optimization/simulation, etc., can solve problems such as coupling effects and analysis methods not mentioned in seismic conditions

Active Publication Date: 2021-06-25
ZHEJIANG UNIVERSITY OF SCIENCE AND TECHNOLOGY +1
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Problems solved by technology

However, the seismic design of offshore oil production platforms or building structures does not mention the coupling effects and analysis methods of seismic conditions, especially the coupling effects between earthquakes and aerodynamic loads

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  • A Whole Coupling Analysis Method of Offshore Wind Turbine Under Earthquake
  • A Whole Coupling Analysis Method of Offshore Wind Turbine Under Earthquake
  • A Whole Coupling Analysis Method of Offshore Wind Turbine Under Earthquake

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Embodiment Construction

[0033] An overall coupling analysis method of an offshore wind turbine under earthquake action according to the present invention mainly includes establishing a structural motion control equation of an offshore wind turbine under combined earthquake, wind and wave loads and realizing multi-method synchronous control of MTMD and TLCD under different load conditions. Based on the derived wind turbine coupling motion control equation and the overall coupling analysis method of offshore wind turbines under the combined effects of wind and waves in FAST V8.0, the seismic load analysis module is added to establish the overall coupling analysis method of offshore wind turbines under the combined effects of earthquake, wind and wave loads. Based on the overall coupling analysis method, by adding the MTMD and TLCD control strategy numerical models to the control module of FAST V8.0, the local and overall TMD and MTMD control of the wind turbine, the TLCD control of the wind turbine nacel...

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Abstract

The invention relates to an overall coupling analysis method of an offshore wind turbine under earthquake action, which belongs to the technical field of numerical simulation calculation of the offshore wind turbine. Based on the finite element method, structural dynamics, wind turbine aerodynamics and wave theory, this analysis method deduces the coupled motion control equations of offshore wind turbines under the joint action of earthquake, wind and wave loads, and uses FAST V8.0 as the platform to establish Integral coupling analysis method of offshore wind turbine under earthquake action. Further, based on the structural dynamic response characteristics of offshore wind turbines under seismic loads, the multi-mass tuned control (MTMD) module and tuned liquid column damper (TLCD) are added to the overall coupling analysis method of offshore wind turbines to realize the combined seismic, wind and wave loads. Under the action, the overall structure of the offshore wind turbine is controlled synchronously in multiple ways and in multiple directions.

Description

technical field [0001] The invention relates to an overall coupling analysis method of an offshore wind turbine under the action of an earthquake, and belongs to the technical field of numerical simulation calculation of the offshore wind turbine. Background technique [0002] At present, my country's offshore wind power industry is developing rapidly, and the site selection and planning of offshore wind farms need to rely on the offshore continental shelf. However, my country's coastal areas are high-risk areas for earthquakes, such as the Bohai Bay area. Therefore, it is necessary to take the seismic load as one of the control loads for the planning and design of offshore wind farms in my country's earthquake-prone sea areas. At present, the definition of offshore wind power design codes at home and abroad is not clear about the seismic conditions of offshore wind turbines. The seismic design of offshore wind turbine structures mostly refers to the seismic design methods o...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F30/20
CPCG06F30/20
Inventor 李颖李昕王文华方通通王滨
Owner ZHEJIANG UNIVERSITY OF SCIENCE AND TECHNOLOGY
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