研究生學(xué)位課-動態(tài)電力系統(tǒng)

動態(tài)電力系統(tǒng)

張毅威

ywzhang@

西主樓III-210電話62794698Ftp：0研究生學(xué)位課-動態(tài)電力系統(tǒng)共17頁，您現(xiàn)在瀏覽的是第1頁!11.1.5FundamentalsofAutomaticGenerationControlAGCinisolatedpowersystem:AGCininterconnectedpowersystem研究生學(xué)位課-動態(tài)電力系統(tǒng)共17頁，您現(xiàn)在瀏覽的是第2頁!11.2Reactivepowerandvoltagecontrol Objectivesofvoltagecontrolandreactivepowercontrol:Foreachequipment,|V|<EnhancestabilityReduceRI2andXI2foractivepowertransfer.Problem: Whatarethemaindifferenceoffrequencycontrolandvoltagecontrol?研究生學(xué)位課-動態(tài)電力系統(tǒng)共17頁，您現(xiàn)在瀏覽的是第3頁!11.2.1ProductionandAbsorptionofReactivePowerSynchronousgenerators Problem:Whatlimitstheproductionandabsorptionofgenerator’sreactivepower?Overheadlines Problem:Whentheyproduceorabsorbreactivepower?研究生學(xué)位課-動態(tài)電力系統(tǒng)共17頁，您現(xiàn)在瀏覽的是第4頁!11.2.2MethodsofvoltagecontrolAtalllevel11.2.3ShuntReactors11.2.4ShuntCapacitors11.2.5SeriesCapacitors11.2.6SynchronousCondensers11.2.7StaticVarSystem研究生學(xué)位課-動態(tài)電力系統(tǒng)共17頁，您現(xiàn)在瀏覽的是第5頁!11.2.9ModelingofReactiveCompensatingDevicesModelingforloadflowanddynamicsimulation11.2.10ApplicationofTap-ChangingTransformerstoTransmissionSystems Problem: Whatisthepolicyofvoltagecontrolforhigh/lightsystemload?UsingOPFtodecideLTCsetting研究生學(xué)位課-動態(tài)電力系統(tǒng)共17頁，您現(xiàn)在瀏覽的是第6頁!11.3Power-FlowAnalysisProceduresPower-flow: Planningofreactivepowerresources(alsoOPF) Baseofstabilityanalysis TransmissionLoadflow(loadatsubstation) DistributionLoadflow(loadatindividuallocations)Problem:Whatisthemainpurposeofpower-flowanalysis?研究生學(xué)位課-動態(tài)電力系統(tǒng)共17頁，您現(xiàn)在瀏覽的是第7頁!11.3.2Post-faultPowerFlows Theyaresnapshotsofthesystemconditionsatvarioustimeframesfollowingadisturbance. ModelingconsiderationsTransmissionLTCLoadCharacteristicsincludingdistributionLTCReactivepowerpensationGeneratorreactivepowerlimitsOperatoractions研究生學(xué)位課-動態(tài)電力系統(tǒng)共17頁，您現(xiàn)在瀏覽的是第8頁!BeforeoperatorsactionAutoLTCLoadrecoverTielineflowbyAGC研究生學(xué)位課-動態(tài)電力系統(tǒng)共17頁，您現(xiàn)在瀏覽的是第9頁!Analysisofcontingenciesresultingingeneration-loadmismatchStage1DuringdisturbanceGeneratoroutputsaccordingtoelectricaldistanceStage2Followingdisturbance GeneratorAcceleratinganddecelerating Smallsystem(inertialoadflow) Largesystem(bydynamicsimulation)Stage32.0-20.0sfollowingthedisturbanceGovernorresponseloadflowStage4tensofsecondstoseveralminutesAGCresponseloadflow研究生學(xué)位課-動態(tài)電力系統(tǒng)共17頁，您現(xiàn)在瀏覽的是第10頁!Undergroundcables Problem: Whyitalwaysproducereactivepower?Transformers Problem: Whyitalwaysabsorbreactivepower?Loads Problem: Whatiscalledloads?Compensationdevices Problem:研究生學(xué)位課-動態(tài)電力系統(tǒng)共17頁，您現(xiàn)在瀏覽的是第11頁!11.2.8PrincipleoftransmissionSystemCompensationThecharacteristicsoflonglineThecharacteristicsoflinepensation研究生學(xué)位課-動態(tài)電力系統(tǒng)共17頁，您現(xiàn)在瀏覽的是第12頁!11.2.11DistributionSystemVoltageRegulation Problem: Whatarethemajormethods?11.2.12ModelingofTransformerULTCcontrolsystems研究生學(xué)位課-動態(tài)電力系統(tǒng)共17頁，您現(xiàn)在瀏覽的是第13頁!11.3.1Pre-faultPowerFlowsNormalsystemconditionsModelingconsiderationsLoad:constantP/QGeneratoroutputwithinlimitsAllcontrolareaccountedforLTC,PhaseshifterAGC研究生學(xué)位課-動態(tài)電力系統(tǒng)共17頁，您現(xiàn)在瀏覽的是第14頁!Analysisofcontingenciesnotinvolvinglossofgeneration/load beforeLTCandAGCactionsAVRwithcapabilitylimiterLoadvariationwithvoltageCapacitor/reactorautomaticallyswitched研究生學(xué)位課-動態(tài)電力系統(tǒng)共17頁，您現(xiàn)在瀏覽的是第15頁!Afteroperatoract