半潜式风流联合发电装置水动力性能分析

The hydrodynamic analysis of semi-submersible wind-tidal combined power generation device

文章基于半潜式风流联合发电装置,以频域势流理论为基础,研究风流联合发电装置的频域水动力性能,得到了漂浮式载体在规则波中的运动响应RAO和水动力系数;根据载体频域分析结果、水轮机CFD数值模拟结果及风力机载荷特性确定装置的风、浪、流等载荷,利用Fortran编程对AQWA进行二次开发,计入附加的定常力及非定常力,并以此计算极限工况(破损自存工况)下,不规则波中的系统运动响应和系泊线张力。计算结果表明,该半潜式风流联合发电装置在极限工况下具有良好的水动力性能,设计安全可靠。

In this paper, based on the semi-submersible wind-tidal combined power generation device, the three-dimensional frequency domain potential field theory is used to study the hydrodynamic performance of the wind-tidal combined power generation device. The RAO and hydrodynamic coefficients of the floating carrier platform in the regular wave are obtained. The wind load, wave load and flow load of the device are determined from the frequency domain analysis results of the carrier, the CFD numerical simulation results of the turbine and the load characteristics of the wind turbine. The AQWA software is secondary developed through FORTRAN programming, and the additional steady and unsteady forces were added into it to calculate the carrier motion response and the tension of anchor chain in irregular wave under extreme conditions（self-contained condition）. The results show that the semi-submersible wind-tidal combined power generation device has good hydrodynamic performance under extreme conditions, and the design is safe and reliable, which provides an effective basis for the design of the wind-tidal combined power generation device.