變頻調(diào)速的應用研究.pdf

1、華北電力大學（保定）碩士學位論文變頻調(diào)速的應用研究姓名：于娣申請學位級別：碩士專業(yè)：控制科學與工程；控制理論與控制工程指導教師：梁偉平201103華北電力大學碩士學位論文IIAbstractThepurposeofthisthesisistopopularizefrequencycontroltechnology.Thethesismainlyresearchedspeedcontroltechnologyonthepumpfan.In

2、practicethemotsofpumpfanhadgreaterpowerconsumptionloweroperatingefficiencyholdingavastspaceofenergyconservation.Itnotonlygainedconsiderableeconomicbenefitsbutalsoimprovedsafetyreliabilityoftheoperationalequipment.Inthefa

3、ceoftheshtagesituationofwldsenergyresearchapplicationonfrequencyconversiontechnologywasfullofgreatpracticalsignificancegreatsocialeconomicbenefits.Thethesisreviewedthedevelopmentcurrentstatusoffrequencycontroltechnologyd

4、etailedthebasictheyoffrequencyconversionenergysavingonmechanicalpropertyofthepumpfan.Inconnectionwithspeedtechnologyaboutinternalfeedbackwaterresistancepermanentmaghydrauliccouplingthethesispresentedtheirprinciplesperfma

5、nce.Accdingtosurveyingresearchingthespeedcontrolmethodswhichthefirmusedthewkincludedcollectionasfoperatingconditionofdifferentspeedcontrolmethodsofmotgatheringthedataabouttransfmationofspeedtechnology.Byingexperimentalda

6、tageneralizedtheadvantagesdisadvantagesscopeofapplicationpracticaleffect.Ultimatelyweobtainedtheresultsthatfrequencycontroltechnologyholdaconsiderableadvantageincomprehensiveindicatsonsafetyreliabilityeconomy.Frequencyco

7、ntroltechnologyisthemostprominentintermsofsecurityeconomiceffects.Frequencytechnologywasrelativelymaturetheproblemsintheapplicationprocessbeeneasytosolvetherateofsavingenergybeen10%50%recoveryperiodofinvestmentbeenshtitu

8、suallyrecoveredtheinvestmentcostintwoyearsthecostsofmaintenancebeenlowitbeenpossiblethatreducedthehighinitialinvestmentwithrapidtechnologicaldevelopment.Thereliabilityoffrequencycontrolwascrediblerelatively.Inadditionthe

9、frequencycontrolhadthewidestrangethemotofsquirrelcagewoundbeingavailablethesizeofthemotcapacitythevoltagelevelbeingnolimitwhichisveryconducivetothepromotionoffrequencycontrol.Finallytheharmonicgeneratedbyfrequencyconvers