300MW再熱器調(diào)溫系統(tǒng)動態(tài)特性及H∞狀態(tài)變量控制策略在其溫控系統(tǒng)中應(yīng)用研究.pdf

1、大連理工大學碩士學位論文300MW再熱器調(diào)溫系統(tǒng)動態(tài)特性及H∞狀態(tài)變量控制策略在其溫控系統(tǒng)中應(yīng)用研究姓名：王新一申請學位級別：碩士專業(yè)：熱能工程指導教師：尹洪超20050601300MW再熱器調(diào)溫系絞動態(tài)特性及融狀態(tài)變量控制策略在其溫控系統(tǒng)孛殿用研究DynamicCharacteristicsof300MWReheaterTemperatureAdjustmentSystemandStudyonA搬StateSpaceVariableC

2、ontrolStrategyUsedinTheReheaterTemperatureControlSystemAbstractReheaterisoneofimportantheatexchangerinhighcapacitypowerplantboiler，andtheperformanceofreheatertemperaturecontrolisvitaltoeconomicoperationandsafeproductiono

3、felectricityindustry。EspeciallyMaenhighcapacityunitsalwaysparticipateinelectricitynetworkloadadjustmentreheatertemperaturecontrolsystemisrequiredtobeanimprovedperformancelevelThisthesis，basedOi“1theexistingmheatertanpcra

4、turecontrolexamplesofHuaNengPowerPlunt(HNPP)enlarged2X350MWreheatingunits，researchedandanalyzed，indetails，thedynamiccharacteristicsofthereheatertemperatureadjustmentsystemofourcountryp她sentmainpowergeneratingunitslike200

5、MW～300MWandaccordinglydiscussedtheinevitablecharacteristicsindudingnonlineartime—Iag，multivariablecouplingAndalso，thisthesisfirstproposeda擺南statespacevariablerobustcontrolstrategyfor300MWuvAtsreheatertemperaturecontrol，a

6、ndshowedarelevantSAMAconfigurationviaSpec200designblockanditsrealizationNowthemaincontentsofthisthesiscarlbesummarizedasfollows：(t)OnthebaseofpmviommathematicalmodeIforsinglephasezoneheatingsurface，thisthesis，throughLapl

7、aceTransformationofdifferenceequationsatgivenparameterpoints，individually＆d黼醴threedifferential趕翟簦c￡藏彘越基王transferfunctions，whiche懿describetheresponsesofoudettemperatureorenthalpyvalueofcontrolledobjectstoinletvariableslik

8、eflowflux，temperatureandenthaipy；(2)BasedOnar翻yzingthestepresponsesunderdifferentrelevantdisturbancesinglephasezonesuperheatingsurfacearea，thethesisshowedtransferfunctionsrespectivelyforsuperheaterandreheatertemperaturea

9、djustment犁瓴鋤；(3)ThroughthirdorderTaylorexpansionandpracticalengineeringsimplificationthethesisderivedthreetypicalexpressionsforthereheatertemperatureadjustmentsystemwhenitisdisturbedbythethreevariablessuchaSflowflux，temp