简介：ThispapersummarizesthebasicsituationofthewindpowerdevelopmentinChinain2008,andcarriesoutabriefanalysisoftheproportionofthenationwidewindpowertotheglobalwindsectoraswellastothetotalinstalledcapacityinthecountry.ByreviewingtheremarkableachievementsinChina'swindpowerdevelopmentsincetheenforcementoftheRenewableEnergyActofthePeople'sRepublicofChina,someissuesconcerningthepolicyeffectandwindpowerdevelopmentaretouchedon.

简介：~~

简介：

简介：OnApril14,2009,theStateGridCorporationofChina(SGCC)heldthepressconferenceinBeijingonelectricitymarkettransactionsandthenreleasedthe"2008AnnualReportofSGCConElectricityMarketTransactions".

简介：~~

简介：~~

简介：IntroductionWithever-increasingofpowersources,thecapabilityofpowersupplywasfurtherenforcedin2007.Thismetthestrongdemandofnationaleconomydevelopment.Restruc-turingofpowersourceswasdeepening,ofwhich"substi-tutinglargepowerunitsforsmallones"startedwell,theinstalledcapacityofwindpowerwasdoubledandobviousresultswereachievedintheenergy-conservationandpollu-

简介：InJanuary2008,asuddendisastercausedbyicingandsnowinghappenedinlargeareasofCentralChinaandSouthChina.TheequipmentsofHunanpowergridwereseriouslydamagedduringtheicingandsnowingdisaster.AnexpertgroupfromChinaElectricPowerResearchInstitute(CEPRI)wasorganizedandwenttoHunanprovinceforfieldinvestigation.Asasummaryofthisinvestigation,thispaperintroducespowerequipmentdamages,suchasflashovercausedbyicing,collapseoftowers,conductorbreakageanddamageofsubstationequipments.Thecountermeasuresadoptedforthisicingandsnowingdisasterarealsosummarized.Theanalysisshowsthattheraremeteorologicalconditionisthemainreasonforlarge-areadamageofHunanpowergrid.IntheicingdisasterofHunanpowergrid,theicethicknessgreatlyexceedsthepermissiblelimitofdesign,thusitisnecessarytoimprovethedesignparametersreasonablytoagainsticingoftransmissionlines,andthedesignofexternalinsulationandtheanti-icingtechnologyforsubstationsarealsoneedtobeenhanced.