江苏沿海波浪能资源评估研究

Assessment of Wave Energy Resources in Jiangsu Coastal Area

随着“3060”目标的提出,波浪能作为一种可持续发展的清洁能源,愈发受到重视。基于此,本文搭建江苏海域的波浪模式,以江苏沿海2021年至2023年的波浪能资源为分析对象,对江苏沿海波浪能流密度空间分布、有效波时和季节变化指数等方面开展初步研究。结果表明:江苏沿海年平均波浪能流密度介于0~11 kW/m,有效波时介于0~6000 h,长江口外深远海波浪能流密度和有效波时相对较大,海州湾内波浪能流密度和有效波时相对较小。越靠外海,波浪能流密度和有效波时越大;纬度越低,波浪能流密度和有效波时向外海增加越明显。江苏沿海区域季节变化指数集中于0.3~1.0,海州湾南侧至洋口港北侧近海区域以及长江口外深远海区域季节变化指数相对较大。该研究结果可为江苏等沿海波浪能资源的开发利用、波能电站的开发选址等方面提供参考。

With the proposal of the‘3060’goal,wave energy,as a sustainable and clean energy source,has received more and more attention.For studying the wave enery resources in Jiangsu coastal area,a wave model is established and the wave energy resources in the study area from 2021 to 2023 are taken as the analysis object.By using this model,the flux density distribution,effective wave hours and seasonal variation indexes of the wave energy in Jiangsu coastal area are studied preliminarily.The results show that the annual average flux density of wave energy ranges from 0 to 11 kW/m and the effective wave hours vary between 0 and 6000 hours.In the deep sea area beyond the Yangtze River Estuary the wave energy flux density and effective wave hours are relatively greater,while within the Haizhou Bay they are relatively smaller.The closer to the outer sea it is,the greater the wave energy flux density and effective wave hours will be,and the lower the latitude is,the more obvious the increase of the wave energy flux density and effective wave hours towards the outer sea will be.The seasonal variation indexes of the wave energy in Jiangsu coastal area range mainly from 0.3 to 1.0,with the relatively higher indexes occuring in the offshore area from the south side of the Haizhou Bay to the north side of the Yangkou Port and in the deep sea area beyond the Yangtze River Estuary.This study can provide references for the development and utilization of wave energy resources and the site selection of wave energy power stations in Jiangsu and other coastal areas.