舟山海域特定水道潮流能估算

Tidal Stream Energy Assessment in Specific Channels of Zhoushan Sea Area

对舟山海域高亭水道5个站位、灌门水道8个站位的连续26 h实测潮流资料进行分析。结果表明：高亭水道和灌门水道均为不规则半日潮,各站总的垂向平均流速在1 m/s以上。介绍了国际上常用的估算潮流能的方法：Farm方法和Flux方法,并用这2种方法分别对高亭水道和灌门水道潮流能进行估算。近似得到高亭水道可开发潮流能功率在4.67-5.31 MW之间,灌门水道可开发潮流能功率在7.92-9.37 MW之间。综合2水道可开发潮流能,换算成1 a的发电量,约占舟山市2005年用电总量的6%~7%。

In this paper,twenty-six hours＇ continuous measured data is analyzed,which includes data of five observation stations in Gaoting channel,and that of eight observation stations in Guanmen channel.The results show that the two channels appear irregular semidiurnal tidal stream characteristics,and the synthetic vertical average velocities are above 1 m/s.Two common methods-farm and flux,which are used for tidal stream energy assessment are also introduced in this paper.From the assessment results,it can be found that the tidal stream power can be developed in Gaoting channel exists between 4.67-5.31 MW,and that in Guanmen channel exists between 7.92-9.37 MW.If exchanging all tidal stream power to annual generated energy,it accounts for 6%～7% of electrical power consumption of Zhoushan in 2005.