地铁环控系统中应用变频技术的节能效果研究

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1、西南交通大学硕士学位论文地铁环控系统中应用变频技术的节能效果研究姓名：周吉日申请学位级别：硕士专业：供热、供燃气、通风及空调工程指导教师：邓志辉20070301西南交通大学硕士研究生学位论文第ll页AbstractIntheoperationofsubway，theelectricconsumptionoftheenviromentalcontrolsysteminthesubwayalwaysaccountsforaquitegreatproportion，speciallythosewithai

2、rconditioning．Althoughtheelectricinvestmentonlyaccountsfor8％～10％inthetotalinvestmentofastation，theconsumptionactuallyoccupied40％’50％oftheentiresubwaypower，whiletheenergyconsumptionofthefanshasachievedabout50％intheentireairconditioningenergyconsumptionp

3、roportion，thereforeitissignificanttofindouthowtooptimizethedesignandtheoperationoftheenviromentalcontrolsystemfurtherly，andthefeasibleenergyconservationmeasurespeciallywhichaimsattheenergysavingoffans．Inthesubwayenviromentalcontrolsystem，becausethecapa

4、cityoftheairconditioningventilationsystem(smallsystem)ofthestationinstallationsmanagementroomissmalletwhichmainlycontainstheequipmentandtheilluminationloadwhosevariationisextremelysmall，itisnotsignificanttousethefrequencyconversioncontr01．MoreovertheTV

5、Fsystemnaomallydoesnotmove，whenthefirehappensitmovesatthefullspeedtodischargefume，sotheenergyconservationpotentialissmaller，andtheTVFsystemisnottakenintoaccountaswell．(Watersystem)Atpresentthefreezerhastheabilitytoadjusttheloadautomaticallywithahigheff

6、iciency，sothereisnoneedtoadjustthewatersystem．Theenergyconsumptionofthebigsystemisextremelygreatwhichchangesalotalongwithpersonnelchange，outsideenvironmentalfluctuationandsoon，thereforethepotentialoffrequencyconversiontosaveenergyisveryhuge．Thefrequenc

7、yconversionvelocitymodulationcontrolsalreadyhasachievedasuccessfulexperienceinotherdomains．butitisstillinanexplorationinsubway．ThisarticletakesaChengdusubwaystationastheexampletostudyontheeffectofthefrequencyconversion西南交通大学硕士研究生学位论文第1

8、I页controlforVAVs

9、ystem．First．thebasicmodelisestablishedwhichcontainsadynamichotloadmodelofasubwaystationwithPSD，thefrequencychangerfuzzycontrolruleanditsmodel，outsideandthetunnelmeteorologymodel，thefansanditstheenergyconsumptionmodelandSOon．Thenthewinte