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1、电力专业英语华北电力大学电力工程系2021/8/6HUIREN@NCEPU45-2PowerSystemIntroductionPowerdispatchingvoltagecurrentactivepowerreactivepowerstatusofcircuitbreakersStatusofprotectiverelays……电力系统调度2021/8/6HUIREN@NCEPU45-32021/8/6HUIREN@NCEPU45-42021/8/6HUIREN@NCEPU45-52021/8/6HUIREN@NCEPU45-62021/8/6HUIREN@NCEP
2、U45-72021/8/6HUIREN@NCEPU45-8BasicsDC/AC直流/交流Voltage电压Voltagelevel电压等级110v,220v,380v,3kV,6kV,10kV,20kV,35kV110kV,220kV,330kV,500kV,750kV,1100kVPhasevoltage相电压,linevoltage线电压Activepower（realpower）有功功率Reactivepower无功功率2021/8/6HUIREN@NCEPU45-9Basics~Y0ΔY0Δ~~Y0YΔY0YΔY0YΔY0YΔY0Δ~Y0Δ~~~~2021/8
3、/6HUIREN@NCEPU45-10BasicsGeneratorPowerTransformerCircuitbreakerProtectiveRelay…Dispatchingsystem2021/8/6HUIREN@NCEPU45-112021/8/6HUIREN@NCEPU45-122021/8/6HUIREN@NCEPU45-132021/8/6HUIREN@NCEPU45-142021/8/6HUIREN@NCEPU45-152021/8/6HUIREN@NCEPU45-162021/8/6HUIREN@NCEPU45-17PowerDispatching
4、Dispatchingregulationonpowersystem:issuedin1993byStateCouncil.Unifieddispatchingandhierarchicalmanagement:fivelevels.Branch-gridlevelRegionallevelCountylevelNationallevelProvinciallevel国调网调省调地调县调2021/8/6HUIREN@NCEPU45-18NationalwidegriddispatchingOperationmanagementofrelatedlarge-scaledp
5、lants500(330)KvtransmissionlinesLarge-scaledplantsCoordinateeconomicoperationofvariousbranchgridsMediumandsmallscaleplantsDistributioncenter220Kvtransmissionlines500KvsubstationHighvoltagecustomers220Kvkeysubstation220Kvsubstation110Kv,35Kvsubstation110KvtransmissionlinesandbelowInter-re
6、gionalconnectionabove500KvBranch-gridlevelregionallevelCountylevelNationallevelProvinciallevel2021/8/6HUIREN@NCEPU45-19Powerdispatchingautomationsystem(调度自动化系统).Thetaskisprovidingtooperators(调度员)allvariouskindsofrealtimeinformationofpowersystem,makingmanagementanddispatchingdecisiontoens
7、uresafetyandeconomicaloperationofpowersystem.SometimesitisalsocalledEMS(EnergyManagementSystem)(能量管理系统)2021/8/6HUIREN@NCEPU45-20EMSincludesthefollowingpoweradvancedsoftware:LoadForecasting(负荷预测),AutomatedGenerationControl(自动发电控制),StateEstimation(状态估计),TransientStabilityAn
