毕业设计论文 外文文献翻译 中英文对照 电气工程及其自动化专业 电力系统通信蓄电池电源的检测与维护解决方案

英文原文POWERSYSTEMCOMMUNICATIONPOWERSUPPLYTESTANDMAINTENANCEOFTHEBATTERYSOLUTIONABSTRACTINALARGENUMBEROFDATAEXPERIMENTSANDFIELDAPPLICATION,ANDONTHEBASISOFTHETELECOMROOMINTHEPOWERTHEPOWEROFCOMMONCOMMONPROBLEMSAREANALYZEDANDDISCUSSED,FROM,TESTINGANDMAINTENANCEOFREALTIMEMONITORINGSYSTEMSAFETY,ANDPUTFORWARDASETOFCOMPLETESOLUTIONSKEYWORDSBATTERYGROUPPOWERSOURCEDETECTIONMAINTENANCEINTRODUCTIONTHEELECTRICPOWERCOMMUNICATIONSYSTEMCENTERROOMEQUIPPEDWITHALARGEAMOUNTOFSTORAGEBATTERYINSTALLATION,ONTHECOMMUNICATIONSDEPARTMENTTHEOPERATIONOFTHEELECTRICPOWERSYSTEMSANDSUPPORT,SPAREPLAYANIMPORTANTROLEBUTINTHEMAINTENANCEPROCESS,ORWILLOFTENMEETMANYPROBLEMS,ADETAILEDANALYSISOFTHEBELOW1THEBATTERYPOWERSUPPLYCONDITIONANDANALYZESTHEREASONSWEFORLARGECOMMUNICATIONMACHINEROOMONTHEACTUALTEST,TOTHEBATTERYPOWERSUPPLYSYSTEMFORTHECOMPREHENSIVESTUDY,FOUNDTHATMANYROOMS,COMMUNICATIONSEQUIPMENTHAVELOWLOADCAPACITYBATTERY,SYSTEMRELIABILITYOFTHEPOOR,INHEREARETWOGROUPSOFDATAABOUTBATTERYPROBLEMSABATTERYSERVICELIFEFORTHEDESIGNOFTHEGENERAL81OYEARS,ANDSTATISTICALDATASHOWTHATTHEBATTERYLIFEIDEALCIRCUMSTANCESCANACHIEVE46YEARS,GENERALLYCANNOTMEETTHEDESIGNDEMAND,ALARGENUMBEROFTELECOMMUNICATIONROOMUSEDLESSTHAN3YEARSSOMETWOYEARSAPPEARBEHINDBATTERY,PARTOFTHEBATTERYEVENSCRAPPEDB2010YEARSURUMQIPOWERBUREAUTELECOMMUNICATIONROOMDATASHOWTHATBECAUSETHEBATTERYELECTRICPOWERCOMMUNICATIONPOWERSUPPLYFAULTFROMACCIDENTSACCOUNTEDFOR35,INRECENTYEARSTHEDATAINTERFACERAPIDLY,THERATIOHASRISENTO7TWOSETSOFDATATOSHOWTHATTHEPROBLEMISMORESERIOUSBATTERY,THEBATTERYPOWERSUPPLYOFSECURITYANDRELIABILITYHAVEASERIOUSTHREAT,INVESTIGATEITSREASON,MAINLYINTHEFOLLOWINGNINEASPECTS11BATTERYDESIGNPROCESSQUALITYTHEBATTERYDESIGNPROCESSEXISTSPLATETECHNOLOGYDESIGN,MATERIALDESIGN,OXYGENCOMPOSITEDESIGN,THEPRESSURESETACOMPREHENSIVEPLANDEFECT,MAKEABATTERYPERFORMANCEANDLIFEHAVEBEENAFFECTED,MAINPERFORMANCEFORBATTERYFAILURE,EARLYLEAKAGEWATERLOSS,DEFORMATIONCRACKS,ETCFORSIMPLEASCENDINGBATTERYCAPACITY,WILLTHEBATTERYPLATETHIN,ANDINCREASETHENUMBERPLATE,MAKESTHESAMEVOLUMEOFTHECASINGELECTROLYTEREACTIONAREAGREATLYINCREASED,CAPACITYIMPROVESOON,BUTBECAUSETHINPLATE,PLATEEASILYCORROSION,SOFTENINGBATTERY,SERVICELIFEANDTHEREFOREGREATLYSHORTEN,EASYTOPRODUCETHEEARLYFAILUREPROBLEMSBECAUSEOFTHELOWPRESSURESETTING,CHARGEONCETOACERTAINPRESSURE,CONTROLVALVESWILLBEOPENREV,GASISTHROUGHTHEVALVEWERELEAKED,CAUSETHEBATTERYFLUIDLOSSUSUALLYINAHOLEORACOLUMNVALVEWILLFINDASLIGHTLYDAMPNEARTHELIQUID,THISKINDOFBATTERYALSOEASYTOPRODUCETHEEARLYFAILURE,VALVEPRESSUREDESIGNANDMATERIALALSOHASADIRECTRELATIONSHIPBETWEENTHESHELLDUETOSHELLMATERIAL,OXYGENCOMPOSITEEFFICIENCY,VALVEDESIGNPRESSURE,ANDOTHERCOMPREHENSIVETECHNOLOGYLACK,SOMEBATTERIESINTHEPROCESSOFCHARGINGANDDISCHARGINGPOOL,EASYTOPRODUCETHESHELLDEFORMATION,BEATEVENCRACK12THEINFLUENCEOFTHEOPERATIONENVIRONMENTRUNNINGENVIRONMENTISTHEMAINROOMTEMPERATUREONBATTERYLIFEINFLUENCEISBIGGER,IN25ENVIRONMENTCONDITIONS,THEENVIRONMENTALAVERAGETEMPERATUREINCREASEEVERY10,BATTERYLIFEISREDUCEDBYHALFNORTHWESTTEMPERATURECHANGESGREATLYA30A55C,THESUBSTATIONTELECOMMUNICATIONROOMLESSEQUIPPEDWITHAIRCONDITIONER,THERMALPERFORMANCEISPOOR,TEMPERATUREONBATTERYLIFEFORMDIRECTLYINFLUENCE13OPERATIONMODEANDINSTALLATIONMETHODBATTERYPACKSAREGENERALLYMOREBATTERYSERIESINTOAGROUP,TWOGROUPSOFPARALLELOPERATIONSITEOFTENFOUNDINTHEINTERNALBATTERY,ARTICLECONNECTIONBOARDCORNEROFBATTERYPERFORMANCEGENERALLYHAVESLIGHTLYWORSE,THEMAINREASONISTHEARTICLECONNECTIONTOOLONGOTHERCONNECTIONISTHEARTICLE5AL0TIMESANDTHEMATERIALSOFTHECONTACTRESISTANCECAUSEDTOOLARGE,LEADTOTHECONNECTIONOFPRESSUREDROPARTICLEISTOOBIG,INTHEPROCESSOFCHARGINGANDDISCHARGING,WILLSERIOUSLYAFFECTPERIPHERALBATTERYCHARGINGANDDISCHARGINGEFFECT,THISKINDOFPROBLEMSHOULDBEAVOIDED14THEQUALITYOFPOWERSUPPLYANDLOADDESIGNPROBLEMTHETELECOMROOMISLOCATEDINREMOTEGENERALTRANSFORMERSUBSTATION,OFTENWITHOUTPOWERANDTHEBATTERYINFREQUENTCHARGED,ANDDISCHARGESTATUS,THESERIOUSINFLUENCEBATTERYLIFECOMPUTERROOMLOADRELATIVETOTHEBATTERYCAPACITYARESLANTSSMALL,SUCHASTHEACTUALLOADFOR30A,COMMUNICATIONSEQUIPMENTCONFIGURATIONOFBATTERYCAPACITYISCOMMONLYTWOGROUPSOF300AH,THEUTILITYAFTERINTERRUPTING,STORAGEBATTERYWILLTOTINYCURRENTBEGANTODISCHARGE,ANDSMALLDISCHARGECURRENTGENERATIONOFSULFURICACIDLEADPARTICLESISEASYTOCRYSTALLIZATIONINTOPIECESANDETELECOMMUNICATIONROOMAREGENERALLYRURALPOWERSUPPLY,THEQUALITYOFPOWERSUPPLYISNOTSTABLE,POWEROVERALONGPERIODOFTIME,POWEROUTAGESFREQUENT,SULFURICACIDLEADPARTICLESGENERATEDMOREEASILYIRREVERSIBLESULFATE15PROFESSIONALTESTINGMETHODSANDLACKOFEQUIPMENTINTHEDISCHARGEDETECTION,DUETOLACKOFMONOMERDETECTIONEQUIPMENTPROTECTIONFUNCTIONS,THEREFORE,INDISCHARGEONLYBYTHEGROUPWHENVOLTAGEOBSERVATION,COMBINEDWITHMANUALMEASURINGFORINSPECTIONFINDA18VBATTERY,IMMEDIATELYSUSPENDTESTTHISWAYLOWEFFICIENCY,SAFETYALLTHESEXDIFFERENCES,TOTHEBATTERYCANTFORMANEFFECTIVEPROTECTIONTHEBATTERYCHARACTERISTICPARAMETERSAREMAINLYEMBODIEDINTHEVOLTAGE,RESISTANCEANDCAPACITY,THECONVENTIONALDETECTIONMETHODMAINLYMEASURINGVOLTAGE,OBSERVETHESHELLSIGNS,CHECKTHEBOLTTIGHTNESSETCSOTHATONLYSOMEREPRESENTATIONSTOTHEPARAMETER,ANDCANNOTMASTERSIMPORTANTPARAM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启，气体也就通过阀门外泄，造成电池失水一般在阀门孔或者极柱附近会发现有轻微潮湿的液体，这类电池也容易产生早期失效，阀压设计与壳体材料也有着直接关系。由于壳体材料、氧复合效率、阀压设计等综合技术欠缺，有些电池池在充放电过程中，容易产生壳体变形、鼓包甚至裂缝。12运行环境的影响运行环境主要是机房温度对电池寿命影响较大，在25环境条件下，环境平均温度每增加10，电池寿命就将减少一半。西北地区温度变化较大一30一55C，变电站通信机房较少配备空调，散热性能较差，环境温度对电池寿命形成直接影响。13运行方式及安装方法电池组一般都是多节电池串联而成一组，两组并联运行。现场经常发现在电池组内部，连接条板拐弯处的电池性能一般都要稍差些，主要原因是连接条过长是其他连接条的5一L0倍以及由于材料引起的接触电阻过大，导致该连接条上的压降太大，在充放电过程中，就会严重影响周边电池充放电效果，这类问题应避免。14供电质量及负载设计问题变电站通信机房一般地处偏远，经常停电，电池处于频繁充电、放电状态，严重影响电池寿命。机房负载相对于电池容量都偏小，例如实际负载为30A，通信机房配置的电池容量一般为两组300AH，市电中断后，蓄电池便会以极小电流开始放电，而小电流放电生成的硫酸铅颗粒很容易结晶成块加E通信机房一般都是农网供电，供电质量不稳定，停电时间较长，停电频繁，硫酸铅颗粒更容易生成不可逆硫酸盐。15专业检测手段及设备缺乏在现场进行放电检测时，由于检测设备缺乏单体保护设置功能，因此，在放电时只能通过整组电压观察，结合手工测量进行检查。发现有电池达到18V时，立即中止测试。这种方式效率低，安全全性差，对电池不能形成有效保护。蓄电池的特征参数主要体现在电压、内阻和容量上，常规的检测方法主要测量电压、观察外壳体征、检查螺栓紧固性等，这样只能掌握一些表象参数，而不能掌握重要特参数如内阻、容量等。16充、放电管理制度不完善充电问题主要涉及到均充电周期、均充电压、均充电流、均充时间、均浮充转换