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21概述General11環(huán)境條件Conditions環(huán)境溫度：0℃～45℃Ambienttemperature：0℃～45℃海拔：≤1000mAltitudeofsite：≤1000m濕度：0%～85%,無凝結，無腐蝕，無滴水Operatinghumidity：0%～85%,nocondensation,nocorrosion,nodripping其它安裝條件：所有的電氣設備適用于船用環(huán)境使用要求Others:allelectricalequipmentissuitableforuseinthemarineenvironment12船級規(guī)范Classrules所提供的設備滿足如下船級社最新規(guī)范要求：Theequipmentprovidedmeetstherequirementsofthelatestclassificationsocietyspecificationsasfollows:船級社:CCSClassificationSociety:CCS13系統描述Systemdescription本船動力來源為常規(guī)柴油推進主機，主機尾軸配置一臺軸帶永磁低速電機，通過軸帶變頻器及濾波設備輸出恒頻恒壓、質量穩(wěn)定的電源，可以單獨發(fā)電或與船舶輔助發(fā)電機組并聯發(fā)電。ThepowersourceoftheshipistheconventionaldieselpropulsionmainengineThepermanentmagnetlow-speedgeneratorisinstalledatthesternshaftofthemainengineTheconstantfrequencyandconstantvoltagepowersupplywithstablequalitycanbeoutputthroughtheshaftfrequencyconverterandfilteringequipment,whichcangenerateelectricityindependentlyorinparallelwiththeauxiliarygeneratorsetof3theship軸帶電機安裝在中間軸上，確保主機在正常使用轉速范圍內，系統能夠發(fā)出足夠的功率，供應全船用電負荷。Theshaftgeneratorisinstalledontheintermediateshafttoensurethatthemainengineiswithinthenormalspeedrangeandthesystemcansupplyenoughpowertomeetthewholeshipselectricloadrequirement系統結構圖如圖1所示：ThesystemstructurediagramisshowninFigure1:圖1軸帶發(fā)電系統結構圖Figure1Shaftgeneratorsystemstructurediagram在PTO模式下，軸發(fā)系統通過軸發(fā)變頻器以恒頻恒壓提供所需的功率。當主機轉速在80-110rpm間，軸發(fā)系統可以輸出500kW并供應全船負荷。InPTOmode,theshaftgeneratorsystemsuppliestherequiredpowerwithconstantvoltageandconstantfrequencybythe$GconverterThesystemisdesignedtoprovideaconstantpowerof500kWforhotelloadwhenM/Eoperated4between80-110rpm該500kW（網側輸出）軸帶發(fā)電系統包括一臺軸帶發(fā)電機、一套變頻器和一套隔離變壓器。該變頻器配備有AFE模塊，并配備濾波器。其中AFE模塊使用IGBT開關器件并采用PWM調制技術。The500kW(gridsideoutput)shaftgeneratorsystemconsistsofashaftgenerator、afrequencyconverterandatransformerTheconverterisequippedwithanAFEmoduleandisequippedwithafilteronthegeneratorsideTheAFEmoduleusesIGBTswitchingdeviceandPWMmodulationtechnology電機側的整流模塊將發(fā)電機輸出的交流電能轉換成變頻器直流側直流電能，所配置的濾波器可有效降低發(fā)電機側的諧波水平。電網側的AFE逆變模塊配置相應卡件和軸帶電機軟件應用宏，可將變頻器直流側電能轉換成交流電能并供給船舶電網，軟件控制程序可實現軸帶發(fā)電系統的單獨發(fā)電運行或與其他發(fā)電機組并網運行。TherectifiermoduleofthegeneratorsideconvertstheACpoweroutputofthegeneratorintotheDCpoweroftheinverterandthefiltercaneffectivelyreducetheharmoniclevelofthegeneratorsideTheAFEinvertermoduleonthepowergridsideisequippedwithcorrespondingpartsandthesoftwareapplicationmacroofshaftgenerator,whichcanconverttheelectricenergyontheDCsideoftheinverterintoACelectricenergyandsupplyittotheshippowergridThesoftwarecontrolprogramcanrealizetheoperationoftheshaftpowergenerationsystemaloneorparalleledwithothergeneratorsets主機參數Mainengineparameters主機型號/Mainenginetype：瓦錫蘭：6RT-flex50-B軸發(fā)運行的最大的主機轉速/Maximumspeedofnormaloperation：110r/min軸發(fā)額定功率運行的最小的主機轉速/Minimumspeedofnormalatratedpoweroperation：80r/min要求主機轉速在80-110rpm間軸帶發(fā)電系統能夠達到額定功率500kW。Theshaftgeneratorsystemcanoutput500kWratedpowerwithinthespeedof80-110r/min