外文文献原文和翻译蓄电池.docx
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外文文献原文和翻译蓄电池
Description
TechnicalField
Thepresentinventionrelatestoapowersourcesystemhavingapoweraccumulatorforsupplyingwhenacommercialpowersourceoeotherinterruptiblepowersourcebreaksdown,apowersupplycontrolmethodOfthepowersourcesystem,apowersupplycontrolprogramOfthepowersourcesystem,acomputerreadablerecodingmediumhavingpowersupplycontrolprogramOfthepowersourcesystemrecodedthereon.
BackgroundArt
Inrecentyears,apoweraccumulatorhasdrawnwideattentionandbeenusedasbackuppowersource.Abackuppowersourceischangedwhenacommercialpowersourceoperatednormally,andcontinuessupplypowertoequipmentinplaceofthecommercialpowersourcewhencommercialpowersourcehasadefect.ExamplesofsuchabackuppowersourceincludeaUPS(UninterruptivePowerSource).Byinstantaneouslyswitchingthecommercialpowersourcetoanoutputofthebackuppowersourceincaseofpoweroutage,acomputerorastorageunitinuse,aswellasnetworkequipmentsuchasaserverarepreventedfrombeingstopped.
Suchabackuppowersourcecombinedwiththepoweraccumulatoriscontrolledtomaintainresidualcapacityrepresentingthestateofchargeatahighlevel.Inthissystem,generallybecausesurpluspowerischargedinpoweraccumulatorefficientlybyapowergenerationactionofanelectricmotor,charge|dischargecontrolisperformedsothattheSOCdoesnotexceed100%.Inordertosupplypowertotheelectricmotorwhennecessary,charge|dischargecontrolisperformedsothattheSOCdoesnotdecreaseto0(zero).Specially,normallyinpoweraccumulator,thecontrolisperformedsothattheSOCfluctuateswithinarangeof20%to80%.
Withregardtoelevators,ontheotherhand,ahybridelevatorthathasacageandacounterweighttoinhibitunnecessarypowerconsumptionduringtheoperationofhybridelevatorhasbeendeveloped.Suchahybridelevatorutilizesthepowerofitsbatteryatthetimeofpoweroutage,sothatincaseofpoweroutageorotherabnormalstateduringofoperationofthehybridelevator,thepowerfordrivingtheelevatorissuppliedfromapowersourcetocarrytheelevatortothenearestfloororanyfloorandsafelyretrievethepassagefromthestage.
Thefollowingmethodisproposedasamethodforcontrollinganautomaticlandingdeviceoftheelevator.PatentDocument1,forexample,disclosesamethodfordetectingtheoutputvoltage,outputcurrent,andatemperatureofabatterypowersourcetoperformarescueoperationinresponsetothepowersupplycapacityofthebatterypowersource.
Here,asamethodforcalculatingthepowersupplycapacity,amethodforcalculatingthepowersupplycapacityfromtheopenvoltage,internalresistance,andminimumvoltage(operablevoltage)ofthebatterypowersourceisgenerallyknown,asshownisequation
(1)below.Theminimumvoltageusedforcalculatingthepowersupplycapacityissetwithacertaindegreeofmargin,inviewofthelifeofthebatterypowersource.
PowerSupplyCapacity=minimumvoltage*(openvoltage-minimumvoltage)\internalresistance.............
(1)
Moreover,thehybridelevatorhastoalwayssecureenergyamountforcarryingtheelevatortoanecessaryfloorincaseofemergencyduringthenormaloperationofcommercialpowersource,andthereonalargepoweraccumulatorwithalargecapacityrequired.
InthemethoddisclosedinPatentDocument1,theoutputvoltageandthevoltagesetvaluearecomparedwitheachotherbyadischargetimeanddischargestateofthebatteryisdetectedbythemagnituderelationtherebetweentocontroltheoperationoftheelevator.Therefore,whenthepowersupplycapacityofthebatterypowersourceislow,thepowersupplycapacitywillbelost,therebystoppingthepowersupplyfromthebattery.Inthiscase,becausechargingofthebatterypowersourceisstartedaftertheinterruptiblepowersourcereturns,andtherescueoperationisconducteduponcompletionofthecharging,theelevatorcannotbecarriedtothenearestfloortoperformrescueoperationinthecaseofanabnormalsituationoftheinterruptiblepowersource.Asaresult,thepassengersremaintrappedintheelevator.
Moreover,whentheinterruptiblepowersourceisstoppedduetodisasterlikeasinthehybridelevator,itisnecessaryforthebackuppowersourcetoensuretheminimumpowersupplycapacityforenablingminimumoperation.Consequently,becauseamarginbecomesnecessaryinthecapacityofthebackuppowersource,alargepoweraccumulatorisnecessary.
Inaddition,theminimumvoltageusedforcalculatingthepowersupplycapacityhasamargin,inviewofthelifeproperty.Therefore,thevalueoftheactualpowersupplycapacityissmallerthanthethatoftheprimarypowersupplycapacityofthepoweraccumulator.
Disclosureofinvention
Anobjectofthepresentinventionistoprovideapowersourcesystemcapableofrealizingatleasttheminimumbackupfunction,increasingthelifedurationofapoweraccumulator,andreducingthesizeofthepoweraccumulatorbytemporarilyimprovingthepowersupplycapacityofapoweraccumulatorwhenaninterruptiblepowersourceisstoppedbydisasterorthelike.Thepresentinventionalsoprovideapowersupplycontrolmethodofthepowersourcesystem,apowersupplycontrolprogramOfthepowersourcesystemandacomputerreadablerecodingmediumhavingpowersupplycontrolprogramOfthepowersourcesystemrecodedthereon.
Apowersourcesystemaccordingtoanaspectofthepresentinventionhas:
apowerunitforsupplyingpowertoaloadservice;apoweraccumulatorforsupplyingthepowertoaloadserviceinplaceofthepowerunitwhenthepowerunitisstopped,andacontrollerforcontrollingpowersupplyfromthepoweraccumulatortoaloadservice;whereinthecontrollersetsanoperablevoltage,whichisdeterminedasanoutputvoltagefoeendingdischargeofthepoweraccumulator,atafirstvoltagewhenthepowerunitisoperated,andsetstheoperablevoltageatasecondvoltagelowerthanthefirstvoltagewhenthepowerunitisstopped,therebyincreasingthepowersuppliedtotheloaddevicebythepoweraccumulator.
Accordingtothepowersourcesystemdescribedabove,thepowersupplycapacityofthepoweraccumulatorcanbeimprovedbyreducingtheoperablevoltageofthepoweraccumulatorwhenthepowerunitisstopped,theoperablevoltagebeingsetduringthenormaloperationofthepowerunit.Furthermore,becausetheoperablevoltageofthepoweraccumulatorisreducedafterthepowerunitisstopped,andthenumberofthetimesthatthepoweraccumulatorisover-dischargedduotothedecreaseintheoperablevoltagecanbepreventedfromincreasing.,thelifedurationofthepoweraccumulatorcanbeincreased.Inaddition,thesizeofthepoweraccumulatorcanbereducedbecauseitisnotnecessarytoincreasethecapacityofthepoweraccumulatorbeforehandinthelightofanincreaseinpowersupplywhenthepowerunitisstopped.
Briefdescriptionpfthedrawings:
[Fig.1]Fig.1isablockdiagramshowingaconfigurationofapowersourcesystemaccordingtoEmbodiment1ofthepresentinvention.
BestModeForCarryingtheinvention.
(Embodiment1)
Fig.1isablockdiagramshowingaconfigurationofapowersourcesystemaccordingtoEmbodiment1ofthepresentinvention.AsshowninFig.1,apowersourcesystem10accordingtothepresentinventionhasaninterruptiblepowersource100,aloaddevice200,apoweraccumulator300,acharge|dischargecontroldevice400,apowersupplycontroldevice500,andanelectriccontrolunit600.
Theinterruptiblepowersource100is,forexample,acommercialpowersource,suchasageneratorhavinganengineasasourceofpower.
Thepoweraccumulator300storessurpluspowerfromtheinterruptiblepowersource100andregenerativeelectricpowergeneratedbytheloaddevice200,andsuppliesthestoredelectricpowertotheloaddevice200accordingtoneed.Thepoweraccumulator300isconfiguredbyconnectingNnumberofelectricpoweraccumulationelementblocksB1,B2,......BNinseries.EachoftheelectricpoweraccumulationelementblocksB1,B2,......BNisconfiguredelectricallyconnectingapluralityofelectricalstorageelements301series.Analkalinestoragebatterysuchasanickelhydridebattery,anorganicbatterysuchasalithium-ionbattery,andanelectricaldoublelayercapacitorcanbeusedaseachoftheelectricalstorageelements301.NotethatthenumberNofelectricpoweraccumulationelementblocksandthethenumberoftheelectricalstorageelements301arenotparticularlylimited.
Thepoweraccumulator300hasapredeterminedrangeofoperatingvoltagedeterminedbeforehand,sothatthebatterycharacteristics,lifedurationandreliabilityofthepoweraccumulator300arenotdegraded.Operablevoltage,whichistheminimumvoltage(finalvoltage)ofthisoperatingvoltagerangeisthevoltageforendingdischargeofthepoweraccumulator300.Duringthenormaloperation,whentheoutputvoltageofthepoweraccumulator300fallsbelowtheoperablevoltage,dischargeofthepoweraccumulator300;namely,powersupplyfromhepoweraccumulator300,isstopped.However,powersupplyfromthepoweraccumulator300ispossibleuntiltheoutputvoltageofthepoweraccumulator300fallsbelowtheoperablevoltage;namely,byreducingtheoperablevoltage.Inthiscase,thepoweraccumulator300isover-dischargedtemporarily,butthethebatterycharacteristicsandthelikeofthepoweraccumulator300arenotimpingedsolongasthedischargeofthepoweraccumulator300isexecutedwithoutdegradingthethebatterycharacteristics,lifedurationandreliabilityofthepoweraccumulator300.
Thecharge|dischargecontroldevice400controlscharge|dischargeofthepoweraccumulator300.Thecharge|discharg