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，andan

2、energystorageelement,whichclosetotheload，accessflexibility,andcansolvetheproblemofpoorpermeabilityofdistributedpowersupplyeffectively．Basedontheanalysisofmicrosources，costmodelsaregot,andmathematicalmodelofeconomicschedulinginmicmgridisbuilt，inwhichruingfuelcostsofmicrosources，maint

3、emnceandoperationcosts，environmentalgovernancecosts，andelectricchargewithpowergridasmultipleobjectivefunction．Inaccordancewithresultofeconomicoperationofmicrosourcesandinteractivepowerwithmaingridbyoptimizationalgorithm，integratedbenefitevaluationisproceeded．Integratedbenefitevaluat

4、ionofmicmgridisreflectedinthedifferencebetweentheprofitwhethermicrogridiSusedornot．Comprehensivebenefitevaluationmodelisbuiltconsistingofuserpowercosts，constructioninvestmentofpowersupplyandpowergridandenvironmentoverheadexpenses．Inaddition,analytichierarchyprocessisusedtodeterminet

5、heindexweightofthecostandbenefitanalysismodelwhichmakestheresultmorepracticalIntheimplementationofeconomicschedulingofmicrogrid，dynamicalsystemstheoryanditsapplicationisfocusedon．BasedontheimproveddifferentialevolutionpE)algorithm，VCHprogrammingisusedtooptimizepowerdistributionofMic

6、ro—grideconomyoperation,andthealgorithmimplementationprocessandtreatmentofcross-borderissuesisforfurtherelaboration．InthestudyofMicro-gridsystemcase．structuralmodeliSbuilt,andbasicdataaredefined．Basic．dataincludescurvesofloadintypicalday,locallyavailableresources，andtechnicalperform

7、anceparametersofmicro．sources．Throughtheresearchofmicrogridsystenl’t11esimulationoutcomeshowsthatthepromotionofmicrogridcanreducepowercosts，cutdownordelayconstructioninvestmentofpowersupplyandpowergridandimproveenvironmentallyfi'iendlydegree，asif,producefavorablecombinedrevenues，whi

8、chhavereferentialme