Design And Simulation Of Floating Wave Energy Conversion Device

The ocean contains abundant renewable energy.The development and utilization of marine energy has become a hot research issue in various countries around the world.Wave energy has gradually become the focus of marine energy research due to its advantages such as high energy quality,high energy density,and unrestricted development.At present,countries have stepped up their efforts to study the development and utilization of renewable energy sources.Among them,the development of marine energy has received great attention from many countries.Among the many wave energy conversion devices,the floating wave energy conversion device shows a good development prospect due to its reliable structure and strong wave resistance.According to the sea conditions in the Yellow Sea and Bohai Sea,a floating wave energy conversion device suitable for the Yellow Sea and Bohai Sea is designed.The specific content is as follows:(1)Firstly,a floating structure model of two articulated floating wave energy conversion devices was established.The ANSYS WORKBENCH software was used to create a frequency domain model,and the hydrodynamic properties of the floating body were analyzed in the frequency domain,including free response amplitude,wave excitation Vibration force,radiation damping force,etc.;then a time-domain model of the floating body is established,and the articulated joint and mooring system are added to make the model closer to reality.In the time domain,the motion and force of two articulated buoys under regular waves are first analyzed with time,and then the buoys' motion and articulated reaction forces are analyzed under irregular waves.(2)The hydraulic system of the wave energy conversion device is designed,the main components are selected,the hydraulic system simulation model is established by the hydraulic simulation software AMESim,and the system simulation analysis is performed under the assumption that the damping is linear.It shows that the designed hydraulic system can run stably.The contrast simulation is used to verify the important role of the high-voltage accumulator on the stability of the system.(3)The effects of wave parameters on the first-level energy conversion power are analyzed through a large number of simulation analysis,and the single-factor analysis method is used to analyze the effects of different wave heights,periods,and sea depths.The first-level energy conversion power is gradually increased as the wave height increases;when the period is 3-4s,there is a higher conversion power,which indicates that the designed capture energy device floating body is suitable for the Yellow and Bohai Seas;There is basically no impact.According to the analysis of the influence of the floating body parameters,the auxiliary design software of wave energy conversion device is designed by using the combination of Delphi and MySQL database system.It can recommend suitable floating body structure size according to different sea areas in China,which has practical engineering application value.