简介：ＰｒｏｓｐｅｃｔｏｆＦｕｔｕｒｅＴｒａｎｓｍｉｓｓｉｏｎａｎｄＤｉｓｔｒｉｂｕｔｉｏｎＤｅｖｅｌｏｐｍｅｎｔｉｎＣｈｉｎａＳｈｅｎＧｅｎｃａｉＭｉｎｉｓｔｒｙｏｆＥｌｅｃｔｒｉｃＰｏｗｅｒ１．ＰｒｅｓｅｎｔＳｌａｔｅＤｕｒｉｎｇｔｈｅｒｅｃｅｎｔ１８...

简介：Consumers'electricitycostkeepsincreasingoverthetimeinmostcountriesacrosstheworld.Themainreasonisthatimportingelectricityfromgenerationplantsfarfromaloadcenterisrelativelyexpensive,ascostsarepaidnotonlyforgenerationbutalsoforenergylossandnetworkuse.Tothisend,itismoreeconomicaltouseelectricitygeneratedbylocaldistributedgenerations.Inordertoreducecustomers'electricitycost,aneweconomicdispatchofsmartdistributionnetworksisproposed.Economicdispatchofsmartdistributionnetworkistomeetloaddemandwiththeleastconsumers'electricitycostconsideringdistributedgenerators,whilerecognizingalloperationallimitsofgenerationandtransmissionfacilitiesinadistributionnetwork.Casestudyshowsthatconsumers'electricitycostcanbereducedbyabout20%througheconomicdispatchofdistributionnetwork.Further,generationcostandemissionofdistributionnetworkarereducedaswell.

简介：Theurbanelectricpowerdistributionnetworkrequireshighersupplyreliability,butthedecisionofinvestmentpolicyischieflydependentonthesecuritystandardsadoptedbythesupplyutilities.Thus,theformulationofreliabilitystandardsdeservesseriousconsiderationevenregardinginvestmentalone.Supplyreliabilitycanbeexpressedintermsofsupplyavail-ability,whichrelatestoannualdurationofinterruptionperconsumer.