摘要
以杭州湾岱山海域某站点潮流观测数据为例,分析采用3种资料长度及3种评估方法对潮流能资源评估结果的影响。对比分析3种潮流能功率密度计算方法的计算结果,逐时计算取平均值的计算方法最为准确,但对资料长度和分辨率要求较高;流速分级计算方法适用范围最广,对数据时间分辨率没有要求,资料长度只要能反映出完整的潮周期即可;大、小潮最大流速评估方法由于引入太多近似,精度最低。分析3个月、1个月和全潮测验3天的潮流数据计算结果表明,1个月是基本要求,1个月以上最好,缺乏1个月数据时,3天(包含大、中、小潮)数据也可。如只有大、小潮2天潮流数据或只有大、小潮最大流速数据,一般不建议使用。
Three kinds of data length and three kinds of tidal current energy resources assessment methods are compared and analyzed using the observation data of Daishan in Hangzhou bay. The calculation results showed that the method of calculated directly by taking average is most accurate, but need stricter data length and resolution requirements. Velocity grading distribution calculation method applicable to a wider range of data interval is not required strictly, and the data reflect the full length of the long tidal cycle trend can also be. The precision of spring and neap maximum velocity assess- ment method is lowest due to many approximations are used. Data length of one month is a basic requirement, more than one month is better, a tidal cycle （including spring medium and neap tide）data can also be used, but only spring and neap tidal maximum current speed data is generally not recommended.
出处
《太阳能学报》
EI
CAS
CSCD
北大核心
2016年第9期2437-2442,共6页
Acta Energiae Solaris Sinica
基金
国家高技术研究发展(863)计划(2012AA051701)
关键词
潮流能
资源评估
资料长度
评估方法
tidal energy
resource assessment
data length
assessment method
