封闭式波浪能发电装置受力与俘能功率研究

Study on the Force and Capture Power of Sealed Wave Energy Converter

为开发低能流密度海域波浪能应用潜力,对新型封闭式波浪能发电装置开展受力及俘能功率进行研究。基于三维势流辐射-绕射理论,运用时域分析法,研究了质量对5～20 m浮标直径的封闭式波浪能发电装置F-K力、波浪绕射力和俘能功率的影响。研究发现,在8～14 t的质量要求范围内,随质量的增加,F-K力和波浪绕射力最大增加了127%和88%,俘能功率增加了23.5%～47%。研究结果表明,质量对封闭式波浪能发电装置的受力和俘能功率具有显著影响,通过增加质量的方式可提高波浪能发电装置的俘能功率。该研究可为波浪能发电装置材料选择、功率提升提供理论依据和方法,对开发低能流密度海域波浪能资源具有一定的推动作用。

In order to exploit the application potential of wave energy in low energy flow density sea area,the research on force and capture power of the novel sealed wave energy converter is conducted.Based on the three-dimensional potential flow radiation-diffraction theory,the influence of mass on the F-K force,wave diffraction force and capture power of the SWEC with 5~20 m diameter buoy is investigated by using the time domain analysis method. It is found that within the mass requirements of 8~14 t,the F-K force and wave diffraction force increased by 127% in maximum,and 88% with the increase of mass respectively.And the capture power increased by 23.5%~47% with the increase of mass.The results show that the mass has significant influence on the force and capture power of the SWEC,and the capture power of the SWEC can be improved by increasing mass.The research results provide a theoretical basis and method for the material selection and power improvement of the wave energy converters;and play a certain role in promoting the development of wave energy resources in low energy flow density seas.