基于遺傳算法的風電場異步發(fā)電機動態(tài)等值研究.pdf

1、河海大學(xué)碩士學(xué)位論文基于遺傳算法的風電場異步發(fā)電機動態(tài)等值研究姓名：張慧群申請學(xué)位級別：碩士專業(yè)：農(nóng)業(yè)電氣化與自動化指導(dǎo)教師：潘文霞20070328河海大學(xué)碩士學(xué)位論文AbstractInrecentyears，thedevelopmentofwindpowergenerationisveryrapidCapacityofwindgeneratorsandthescaleofwindfarmarebecominglargerandlar

2、gerBecauseoftherandomnessandintermiaenceofwindthegridconnectedwindturbineswillproducedisturbanceontheofdynamicbehaviorpowersystemAccordinglytherasearchesontechnologyproblemsofgridconnectedwindturbinesincreasepmgressively

3、withtimeHoweverawindparkconsistsoftensorhundredsofwindturbinesIfthewindparkisrepresentedbyadetailedmodelincludingofa11windturbinesthedetailedmodelpresentsahighordermodelandthereforethesimulationtimeislongSoitisnecessaryt

4、opresentadynamicequivalenceapproachofwindturbinesbeforedynamicanalysisAtpresentwindelectricitysysteminourcountryoftenUSeSfixedspeedwindturbinesAndasynchronousgeneratorsareoftenusedinfixedspeedwindturbinesThentheasynchron

5、ousgeneratorsaretakenastheobjectofstudytesearchthedynamicequivalenceproblemAsthetheoreticalbasisofrasearchmathematicalmodelsofwindelectricitysystemarefirstmodeled，includingmodelsofwindvelocitywindturbineasynchronousgener

6、atorAmongthemthethreestepUansientmathematicalmodelofasynchronousgeneratorarefocusedonAndbasedonthemodelthemainparametersoftheequivalentmodelofasynchronousgenerators8redeterminedSecondlythepowerflowcalculationofwindelectr

7、icitysystemisintroducedAndtheresultsactastheinitialvalueofdynamicanalysisThirdlythispaperpresentstheequivalentmodelingofwindfarmandthetheoryofgeneticoptimizationalgofithraUnderthatgeneticoptimizationalgorithmisproposedfo

8、rtheequivalenceofdifferenttypesofasynchronousgeneratorsItusesMAn。AB，SIMULINKsolrareassimulationtoolsThispaperUSCSweightedmethodasreferencesubstanceUndertheimpactofgustandearthfaultgeneticoptimizationequivalentmodelaresim

9、ulatedandcomparedwitIldetailedmodelItconcludesthatgeneticoptimizationequivalentmodelcallreflectthedynamicbehaviorofgeneratorsunderdiffemntfailureconditionsmoreexactlyandhasstrongapplieabilivyBesidesequivalentparametersan

10、alsosuitablefbrtIlBsteadystateoperationandtheoutputshavehigheraccuracyKeywords；windpowergeneration；mathematicalmodelofwindelectricitysystem；asynchronousgenerator：equivalentmodel；dynamicequivalent；geneticoptimizationalgor