含风电机组的配电网动态无功优化-研究

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1、西南交通大学硕士研究生学位论文第1I页分阶段的优化，考虑运行过程中各控制设备的相关性，对控制设备动作时刻表进行动态调整。算例测试结果表明，该动态无功优化方法在求解动态-无功优化上有较好的适应性和现实指导：意义。关键词：配电网；无功优化：粒子群算法：风电机组；支持向量机；负荷预测；动态无功优化西南交通大学硕士研究生学位论文第1II页AbstractReactivePowerOptimization，asoneeffectivemeanstoimprovevoltagequalityandreducenetworkloss，realizestheobjectivetoreducenetwor

2、klossandassurevoltagequalitybyrationalallocationofreactive—controlequipmentsundereachoperationconstraints．Withthewiderangeofwindpowergenerators(WPGs)connectedintothedistributionnetwork，itwillplayanimportantrolesilleasingChina’Spowershortageandthegoalofenergysaving．ttowever,theoutputofWPGsvariesra

3、ndomlywithwindspeedfluctuations，whichcausesmoreuncertaintiestotheconventionalmethodstoreactivepoweroptimizationofdistributionnetwork．ThereforeitisnecessarytostudythereactivepoweroptimizationindistributionnetworkwithWPGsconnectedin．Meanwhile，thetraditionalreactivepoweroptimizationisalwaysoperatedu

4、ndersectionalloaddata，whichnotonlyneglectthedynamicnatureoftheload，butalsonotconsiderthenumberofoperationsofeachcontrolequipment．Thishardlysatisfiesthedemandsofpracticalsituation．Therefore，itisofgreatpracticalsignificancetostudythedynamicreactivepoweroptimizationfordistributionnetwork．AdaptiveMut

5、ationParticleSwarmOptimization(AMPSO)andsceneanalysisareproposedandappliedtosolvethestaticreactivepoweroptimizationindistributionnetworkwithWPGs．Firstly,AMPSOwithmutationoperationisintroduced，whichcaneffectivelyenhancetheabilityoftheparticlestoescapefromthelocaloptimalsolution．Subsequentlytheappr

6、oachofthepowerflowcalculationwithWPGsandits’randomoutputsdescriptionarepresentedindetail．Thepaperbasedonsceneanalysisusing3deterministicscenarioseffectivelyanalyzesreactivepoweroptimizationproblemindistributionnetworkwithWPGs．ExampletestsareconductedonstaticreactivepoweroptimizationintheUnitedSta

7、tesPG&E69nodesystemwithWPGsinMatlab7．10．TheresultsindicatethatoptimizationprogramsbasedonscenarioanalysishaveeffectiveapplicationinrandomoutputofWPGs，anditiseasytosolvetheproblembychangingtheuncertainoutputinto3determi