船用增压锅炉燃烧控制系统研究

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1、哈尔滨工程大学博士学位论文设计了非线性系统的y增量型阶梯式广义预测，很好的解决了主蒸汽压力大滞后的控制难点，且具有很好的鲁棒性。关键词：增压锅炉；燃烧控制系统；阶梯式广义预测控制；FUZZY-CMAC控制；遗传算法船用增压锅炉燃烧控制系统研究AbstractSuperchargedboilerisanewstageofmarinesteamboilerdevelopment．Ithasmanyadvantages，suchashighreliability,economy,lightweight，smallsizeand

2、bigpower．Superchargedboileristhedevelopmentdirectionofmarineboil乱Superchargedboilercombustioncontrolsystemisanimportantcontrolsystemforsteampowerequipment．Thissystemhaslargeinertiaandcomplex如盔b‘卫盔血矗model，andhasinvolutecorrelationbetweenparametersandstrongc0啦r．e．I

3、ationship．Becauseofthecomplexityofthecontrolsystem，itputsforward幻higherrequirementtocontrolsystem，butalsodeterminestheca卸翻卿ofthecontrolsystem．Usedsuperchargedboilerasthebasisandcombustioncontrolsystemasobject,thispapermainlyfocusesonthefollowingresearchwork：First

4、ofall，comprehensivelyanalysesuperchargerboileroveralls訇n】ctureandⅨ匿由皤幽nsystemconstitute，andestablishmathematicmodelforthreebigsIllH谬衄Establishflueflowsystemmodelmakinguseofflowcharacteristic锚口衄韪tablishtorquebalanceequationusingNewton’Ssecondlaw,andtheneh应mm圭unnat

5、icmodelforairflowsystem；establishdynamicphysicalⅡ坨≤b童遍modelformainsteampressuresystemusingsteamandwatertv，D唾妇盈ssbalanceequationandenergybalanceequationandsettleacertainof白衄函画mforcombustioncontrolsystemresearch．&盛旺觋amingattheairflowsystemcontroldifficultyofnonline

6、ar,thin-designFUZZY-CMACcontrollerforairflowsystemandoptimizeFUZZY-CMACcontrolparametersusingoftime—varyinggeneticalgorithm．Thiscorm-atsluaggyimprovesconvergencespeedofthealgorithmandachievesgoodcontrot缸Atthesametime，designaPIDcontrollerforfuelflowsystem,which豳sa

7、tisfiedcontrolresult．Ⅱ嗵putforwardstothecombustioncontrolsystemcharacterizedbvavariableoffsetanddual—crisscrossamplitudelimitbasedonFUZZYcontroller．IIIThevariableoffsetfunctionplaysanimportantroleinamplitudelimitprocess，theau_t_horoptimizesandmodifiestheoffsetfunc

8、tionmakinguseofFUZZYcontroller．nlismethodnot011lyadvanceseconomicalperformanceofcontrolsystem，butalsoconquersthedisadvantagesofflueandairflowfrequentchangeandm