Study On The Hydrodynamic Performance Of The Anti-heave Device Of The Three-floating-body Wind Power Platform

As the most important renewable energy at present,the research on wind power generation has always been the focus of new energy research in the future.As a floating wind power platform,the three-floating-body wind power platform is a wind power industry that is less constrained by the environment and can efficiently develop far-reaching offshore wind energy.The analysis and suppression of the hydrodynamic performance,especially the heave motion,of floating wind power platforms can not only ensure the safety and stability of the floating platform structure,but also an important way to improve the efficiency of offshore power generation units.Therefore,it is particularly important to reduce the platform oscillation and increase the stability and safety of the platform during the operation of the three-floating-body wind power platform to ensure the efficient development of energy.This thesis takes the 5MW three-floating-body wind power platform with a special chamfered opening device as the research object,and makes a thorough and systematic study of the hydrodynamic characteristics of the wind power platform by combining numerical simulation and tank experiment.The main research content of this thesis is divided into the following parts:1.Aiming at the original operation environment of the three-floating-body wind power platform in deep sea,the mooring is simplified,the catenary is equivalently truncated,the operability of simulation and experiment is improved,and the results are verified.2.The hydrodynamic performance of a three-floating-body wind power platform with different chamfer openings and anti-heave devices under different wave periods and different wave heights is numerically simulated.3.An experimental device for studying the hydrodynamic characteristics of the three-floating-body anti-heave device is designed.Through the tank experiment,the acceleration sensor is used to measure its motion,verify the reliability of the previous numerical simulation.The motion response of the three-floating-body wind power platform with this special device under different working conditions is studied,and the numerical simulation and tank experiment results are compared.The influence of the device’s opening angle and external wave environment on the platform heave and surge is studied.The motion law obtained provides ideas for the subsequent design of the wind turbine,and also provides reference for the subsequent research.