深远海漂浮式风电场对海事雷达回波的衰减仿真研究

作为一种大型海上结构物,深远海漂浮式风电场会给周边海域的航海安全带来多种不利影响.其中,最令海事部门担心的就是海事交管雷达受到风电场遮蔽所带来的影响.针对海洋环境和风机分布情况,分别研究了海事雷达回波在深远海风电场水域的衰减特征,通过理论分析并结合仿真模拟的方法,模拟计算了相关海域的雷达回波损耗情况.仿真结果与上海东海风电场实测数据进行了对比,证明了该方法的有效性.在此基础上,以上海深远海海域海上风电场选址方案为例,对比分析了该风电场的多个选址方案对周边海域通航安全的影响程度,并从船舶航行安全的角度对其中1个方案进行了优化,该优化方案得到了上海市深远海域海上风电重大示范工程设计及研究人员的肯定. 

A Simulation of the Attenuation of Maritime Radar Wave Induced by Offshore Floating Wind Farms in Deep Sea Areas

Large marine structures such as offshore floating wind farms in deep sea areas have effects on navigation safety of ships.Among which sheltering effects induced by the wind farms have drawn attention of maritime administra-tion.Considering maritime environment and distribution of wind turbines,characteristics of maritime radar wave attenua-tion in offshore wind farms have been studied through theoretical analysis and numerical modeling.A comparison between model simulations and field measurements at Shanghai Donghai wind farm verified validity of this method.Site selection of the offshore wind farm is further discussed and a case study of Shanghai is presented.Comparing the influences of off-shore wind farms on ship navigation safety,an optimal layout plan is confirmed and adopted by the major demonstration project of offshore wind power in Shanghai.