电力系统英语课件

PowerSystemEnglishCourseware目录contentsIntroductiontoPowerSystemBasicconceptsofpowersystemPowersystemequipmentPowerSystemOperationandControlEnvironmentalProtectionandEnergyConservationinPowerSystemsFutureDevelopmentProspectsforPowerSystems01IntroductiontoPowerSystemSummaryPowersystemreferstothecompletesetofequipmentandfacilitiesthatgenerate,transmit,distribute,andutilizeelectricalenergyDetaileddescriptionPowersystemincludespowergeneration,transmission,distributionandutilization,aswellastherelevantequipmentandfacilitiesItisthemaininfrastructureforthedevelopmentandutilizationofelectricenergyDefinitionandCompositionTheImportanceofthePowerSystemThepowersystemisofgreatsignificancetothedevelopmentofnationaleconomy,socialprogress,andpeople'slivelihoodSummaryThepowersystemisthefoundationofmodernindustryandtransportation,aswellastheimportantguarantorforpeople'sproductionandlifeItprovidesstableandsafepowersupplyforallsectorsofthenationaleconomy,andisalsoanimportantsymbolofacountry'seconomicdevelopmentlevelDetaileddescriptionTheHistoryandDevelopmentofPowerSystemsSummary:Thehistoryofpowersystemscanbetracedbacktotheindustrialrevolutioninthe18thcentury,andhasgonethroughthreestages:thestageofcentralizedpowergeneration,thestageoflargescalepowergeneration,andthestageoflargescalepowergenerationandnuclearpowerDetaileddescription:Intheearlystageofindustrialization,powersystemsweremainlycoalfiredsteamengines,whichwerelaterreplacedbywaterturbinesandnuclearpowerplantsWiththecontinuousdevelopmentofscienceandtechnology,windturbines,solarcellsandothercleanenergysourceshavealsobeenwidelyusedinpowergenerationAtpresent,theworld'spowergenerationhasenteredanewstageofcleanenergydevelopment02BasicconceptsofpowersystemVoltageistheelectricalpressurethatcauseschargestomoveItismeasuredinvolts(V)VoltageCurrentistherateatwhichchargesmove,commonlymeasuredinexamples(A)CurrentVoltageandcurrentPoweristherateatwhichenergyisdistinctorused,measuredinwatts(W)Energyisthecapacityfordoingwork,measuredinjoules(J)orkilowatthours(kWh)PowerandEnergyEnergyPowerDescribethecurrentstatusofthepowersystem,suchasnormal,overload,orfaultmodeOperatingmodeDescribethetransitionperiodbetweendifferentoperatingmodes,duringwhichthesystemexperiencesvoltagesagsorsweetTransientstateTheoperatingstatusofthepowersystemShorttermstabilityReferstotheabilityofthepowersystemtomaintainstabilitywithinashortperiodoftimeafteradisturbanceLongtermstabilityReferstotheabilityofthepowersystemtomaintainstabilityoveralongerperiodoftimeafteradisturbance,soasduringrestorationofserviceafterafaultStabilityofthepowersystem03PowersystemequipmentDefinitionAlternativeisarotatingmachinethatconvertsmechanicalenergyintoelectricalenergyWorkingprincipleThealternativehasarotorandastatorTherotorismadeupofwirewindsthatarequotedbyacurrentfromanexternalsourceThestatorhaswirewindsthatgenerateanalternatingcurrentwhentherotorrotationsUsageThealternativeisusedinpowerplants,automobiles,aircraft,andotherapplicationswhereitisnecessarytoconvertmechanicalenergyintoelectricalenergyAlternatorAtransformerisadevicethatusestheprincipleofelectricalintroductiontotransferelectricalenergyfromonecircuittoanothercircuitThetransformerhastwowindingsoneprimarywindingandonesecondarywindingAvariantcurrentintheprimarywindingcreatesavariantmagneticfluxinthetransformer'score,whichincludesavariantvoltageinthesecondarywindingTransformersareusedinpowertransmissionanddistributionsystems,telephonesystems,andotherapplicationswhereitisnecessarytotransferelectricalenergybetweendifferentvoltagelevelsDefinitionWorkingprincipleUsageTransformerDefinitionAcircuitbreakerisanautomaticallyoperatedelectricalswitchdesignedtoprotectanelectricalcircuitfromdamagecausedbyoverloadorshortcircuitWorkingprincipleWhenthecurrentpassesthroughthecircuitexcessesapredeterminedvalue,thecircuitbreakertripsandopensthecircuitThisstopstheflowofelectricityandeventsdamagetothecircuitandanyconnectedequipmentUsageCircuitbreakersareusedinresidential,commercial,andindustrialapplicationstoprovideprotectionagainstcurrentconditionsintheelectricalsystemCircuitBreaker010203DefinitionAtransmissionlineisafacilityusedtotransmithighvoltageelectricityfromonepointtoanotheroverlongdistancesWorkingprincipleThetransmissionlineconsistencyoftwoconductors(called"bundles")suspendedfromtowersorsupportedonpylonsTheelectricityistransmittedathighvoltagetoreducepowerlossesduringtransmissionUsageTransmissionlinesareusedtotransmitelectricityfrompowerplantstosubstations,whereitissteppeddowntolowervoltagelevelsfordistributiontoendusersTransmissionLineDistributionSystemDefinition:ThedistributionsystemisthenetworkofpowerlinesandequipmentthatdeliverselectricityfromthesubstationtoindividualcustomersWorkingprinciple:TheelectricityistransmittedathighvoltagethroughthetransmissionsystemandsteppeddowntolowervoltagelevelsatthesubstationFromthesubstation,distributionlinescarrytheelectricitytocustomersatvoltagesrangingfrom10kVto1kV,dependingonthelocalconditionsUsage:Thedistributionsystemensuresthatelectricityisdeliveredsafelyandeffectivelytocustomers,homes,businesses,andotherendusers04PowerSystemOperationandControlBasedontheoperationstatusofthepowergrid,marketdemand,andenergysupplysituation,reasonablyarrangethepowergenerationplantoensurethesafety,stability,andeconomicoperationofthepowersystem.DispatchingprincipleByutilizingadvancedcomputerandcommunicationtechnologies,real-timemonitoringandautomaticcontroloftheoperationstatusofthepowergridcanbeachieved,improvingschedulingefficiencyandaccuracy.SchedulingautomationDispatchingofpowersystemsControlobjectiveTomaintainsystemfrequency,voltage,andpowerbalance,ensurestablesystemoperation,andpreventequipmentoverloadandfailure.ControlmeasuresByadjustingtheoutputofthegenerator,switchingloads,andcompensatingreactivepower,effectivecontrolofthepowersystemcanbeachieved.ControlofpowersystemProtectiondeviceequippedwithvariousrelayprotectiondevicestoachievefastandaccurateprotectionofpowerequipment,preventfaultexpansionandequipmentdamage.ProtectionstrategyBasedonthestructureandoperationalcharacteristicsofthepowergrid,developreasonableprotectionstrategiestoensurethereliabilityandselectivityofprotectiondevices.ProtectionofthepowersystemDistributedEnergyandMicrogridsDistributedenergyUtilizingsmallanddispersedenergysystems,suchasphotovoltaics,windenergy,etc.,toachievedistributedproductionandconsumptionofenergy.MicrogridIntegratingdistributedenergywithenergystoragedevices,controldevices,etc.toformanindependentmicropowersystem.05EnvironmentalProtectionandEnergyConservationinPowerSystemsWindenergygenerationWindturbinesgenerateelectricityusingthepowerofwind,providingasustainablesourceofenergyHydropowergenerationDamshardnessofthepowerofmovingwatertogenerateelectricity,ofadvancingstableandrelatedpowerSolarenergygenerationSolarpanelsconvertsunlightintoelectricity,reducingtheneedforbasicfuelsCleanenergypowergeneration

EnergyefficiencymanagementEnergyauditsIdentifyingenergysavingopportunitiesandoptimizingenergyusageinpowersystemsEfficientequipmentUsinghighefficiencyequipmentandappliancesthatconsumelessenergySmartgridsUsingtechnologytomanageandoptimizepowerdistribution,reducinglossesandimprovingefficiencyEnergystorageUsingbatteriesorothertechnologiestostoreexcessenergyforlateruse,smoothingoutpeaksandvaleriesindemandDemandresponseManagingpowerdemandthroughpricingsignalsorincentivestoreducepeakdemandCogenerationGeneratingbothheatandelectricityfromasinglefuelsource,improvingoverallefficiencyEnergysavingtechnologiesforpowersystems03EmissiontradingschemesImplementingcapandtradesystemstolimitgreenhousegasemissionsfrompowerplants01CarbonemissionsreductiontargetsSettingtargetsforreducinggreenhousegasemissionsfrompowersystems02RenewableenergyquotasRequestingacertificatepromotionofpowertocomefromrenewablesourcesEnvironmentalpoliciesandregulationsforthepowersystem06FutureDevelopmentProspectsforPowerSystems单击此处添加正文，文字是您思想的提一一二三四五六七八九一二三四五六七八九一二三四五六七八九文，单击此处添加正文，文字是您思想的提炼，为了最终呈现发布的良好效果单击此4*25}Smartgridalsohasgoodscalabilityandflexibility,andcanbeflexiblyexpandedandappliedtodifferentscenariosSmartgridcanimprovepowersystemefficiency,reducepowerlosses,andprovidemorestableandreliablepowersupplyS