简介:SijiaoIslandinShengsiCountyofZhejiangProv-inceislocatedatnorthofZhoushanIslands,theconfluenceofYangtzeandQiantangriver(N30°24′,E122°28′),79nauticalmilesfromShanghai,whereconvenientincommu-nicationandrichinwindenergyresourceswithanannualaver-agewindvelocityof7.1m/sandaverageeffectivewinddensityof410.4W/m~2,whichisamonghighestinthecountry.Since1976,theWindPowerLaboratorywassetupinShengsiCounty,aseriesofwindpowerexperimentswascarriedoutandaccumu-latedcertainexperiences.