循环流化床锅炉燃烧系统的控制优化

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1、-------华北电力大学硕士学位论文AbstractAsanewcombustionmode,combustiontechnologyofcirculatingfluidizedbedboilerhasbeenwidelyusedinthepowerindustyandotherindustries.However,thesurveyshowsthattherearealsosomedisadvantagesincirculatingfluidizedbedcombustiontechnology,suchastheinsufficientoutput,shortercontinue

2、runningperiod,higherburninglossandsmokeexhaustloss,andtheinsufficientofautomaticinput.Sotheoptimalcontrolforcirculatingfluidizedbedboilerisimminent.AccordingtothetechnicalcharacteristicsanddevelopmenttrendsofCFBboiler,thearticlecomprehensivelyanalyzeCFBboilerinallkindsofequipmentandstructures.On

3、thebasisofanalysis,theCFBboilercombustionsystemismodeledandresearchedbymeansofmechanismmodeling.Advancedcontrolmethodswereputforward,thatisthecontrollerareoptimizedbytheexternalapproachtooptimizetheexistingDCS.Thearticleinstructsthestructuresofexternaloptimizationcontrollerandtheconstructionofth

4、eexternaloptimizationcontrollerplatform.Onthebasiseachcircuitofcombustionsystemisoptimized.Byintroducingthestrategyoffeedforward–feedbackcontrolandsubsectioncontrol,thearticlegottheoptimalcontroleffectwhichiscomparedwiththecontroleffectbefore.Theresultissatisfying.Inthispaper,theoptimizationwasd

5、onebyPIDcontrolstrategy.Butinthefuture,wecanintroducemoreadvancedcontrolalgorithm,suchasthemodelpredictivecontrolwhichisusedtoimprovethecontrolquality.Asthefullusingofexternaloptimizationcontroller,theresultimprovestheautomaticdegreeoforiginalDCS.Thestrategynotonlysavesthemanpower,butalsobecondu

6、ctivetotheprotectionoftheenvironmentandbelessabouttheenergyconsumption.Thecirculatingfluidizedbedboilercombustiontechnologyisofgreatsignificance.Keywords:circulatingfluidizedbedboiler;model;controlstrategy;externaloptimizationcontrollerII-----------华北电力大学硕士学位论文目录摘要...............................

7、..............................................................................................I Abstract........................................................................................................................