熱工自動控制系統(tǒng)PID參數(shù)的優(yōu)化整定及其應(yīng)用研究.pdf

1、南京理工大學(xué)碩士學(xué)位論文熱工自動控制系統(tǒng)PID參數(shù)的優(yōu)化整定及其應(yīng)用研究姓名：張岳榮申請學(xué)位級別：碩士專業(yè)：動力工程指導(dǎo)教師：吳軍基黃悅照20020401三堡塑主堂璧鎏苧釜三曼莖叁墅墨鑒!堡壘差竺垡垡篷塞莖整壁星墮壅AbstractWiththedevelopmentofthepowerindustrythesafetyandeconomyoftheboilerturbinegeneratorunitsbecomel是ofeandmor

2、eimportantTheperformanceofthecontrolsystemsofunitsdirectlyinflnencesthesafetyandeconomyofunitsForfixedstcactu終Controlsystem，迅perfommneedependson髓adjustmentofcontrollerparametersAtpresent，thePIDcontrolleriswidelyusedinthe

3、rmalprocessescontrolinpowerplants，Thisdissertation斂udiesontheproblemofthePIDparametersoptimaladjustmentaccordingtothecharacterofthermalprocessesThema／neotatentinclude：1Theidentificationmethodsoftransferfunctionarestudied

4、forthreekindsoftypicalthermalprocesses。TherdwedidentificationsoftisdevelopedSimulationsarecarriedouttoshowthatthedevelopedsoftlsvalid2ThePIDparametersadjustmentmethodsarestudied媯rsingleloopcoutmlsystems、casc鼠lecOtTttOjsy

5、stems、feedforwardbackforwardcentreIsystemsand22multivariablecontrolsystemsaccordingtothecharacterofthermalprocessescontr01TheoptimaladjustmentstrategyofusingsimpleshapealgorithmtOsearcht如optimalPIDparameterswiththeinitia

6、lPIDparametervaluesobtainedbyrelatedadjustmentmethodsisproposedTheoptimaladjustmentsoftisdevelopedalso。Simulationsfor22multivariablecontrolsystemsparameteradjustmem3recarriedoutneresultsshowthat氆eproposedoptimaladjustmen