基于动态优化调度的微网经济分析

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1、华北电力大学硕士学位论文AbstractAsanimportantpartofsrmrtgrid，Micro-gridisasmallgridcomposedofmicrosources，loadandcontrolsystem,whichisconnectedwithrmingridthroughpointofcommoncoupling，withtwo-wayflowcharacteristics．Microsourcesincludegeneratingunitsusingwindenergy,solarenergyandfossilfuel，andanenergystora

2、geelement,whichclosetotheload，accessflexibility,andcansolvetheproblemofpoorpermeabilityofdistributedpowersupplyeffectively．Basedontheanalysisofmicrosources，costmodelsaregot,andmathematicalmodelofeconomicschedulinginmicmgridisbuilt，inwhichruingfuelcostsofmicrosources，maintemnceandoperationcosts

3、，environmentalgovernancecosts，andelectricchargewithpowergridasmultipleobjectivefunction．Inaccordancewithresultofeconomicoperationofmicrosourcesandinteractivepowerwithmaingridbyoptimizationalgorithm，integratedbenefitevaluationisproceeded．Integratedbenefitevaluationofmicmgridisreflectedinthediff

4、erencebetweentheprofitwhethermicrogridiSusedornot．Comprehensivebenefitevaluationmodelisbuiltconsistingofuserpowercosts，constructioninvestmentofpowersupplyandpowergridandenvironmentoverheadexpenses．Inaddition,analytichierarchyprocessisusedtodeterminetheindexweightofthecostandbenefitanalysismode

5、lwhichmakestheresultmorepracticalIntheimplementationofeconomicschedulingofmicrogrid，dynamicalsystemstheoryanditsapplicationisfocusedon．BasedontheimproveddifferentialevolutionpE)algorithm，VCHprogrammingisusedtooptimizepowerdistributionofMicro—grideconomyoperation,andthealgorithmimplementationpr

6、ocessandtreatmentofcross-borderissuesisforfurtherelaboration．InthestudyofMicro-gridsystemcase．structuralmodeliSbuilt,andbasicdataaredefined．Basic．dataincludescurvesofloadintypicalday,locallyavailableresources，andtechnicalperformanceparametersofmicro．sources．Throughtheresearchofmicrogridsystenl

7、’t11esimulationoutcomeshowsthatthepromotionofmicrogridcanreducepowercosts，cutdownordelayconstructioninvestmentofpowersupplyandpowergridandimproveenvironmentallyfi'iendlydegree，asif,producefavorablecombinedrevenues，whichhavereferentialme