渦軸發(fā)動機最優(yōu)加速控制研究.pdf

1、西北工業(yè)大學碩士學位論文渦軸發(fā)動機最優(yōu)加速控制研究姓名：郭臘梅申請學位級別：碩士專業(yè)：控制理論與控制工程指導教師：樊丁20030301西北工業(yè)犬學碩士論文ABSTRACTInthispaperthemathematicalmodelofcertainturboshaftengineisresearchedandtheengineperformancesimulationiscarriedout.Basedontheenginemathe

2、maticalmodelandenginecontrollawtheoptimalcontrolforturboshaftengineaccelerationisinvestigated.TheoptimalmethodusedinthispaperisnamedSequentialQuadraticProgramming(SQP)whichisoneofthemostsuccessfulmethodsforsolvingnonline

3、arconstrainedproblem.Intheprocessofoptimalcontrolmostofperformanceconstraintsandcomponentconstraintswhicharepresentintheactualengineaccelerationareconsideredincludingcompressorsurgemarginthelimitofovertemperatureoverspee

4、dlimitofgasgeneratorandpowerturbinethemaximumtorquelimitandrichextinctionincombustoretc.Besidestheconstraintssuchasthechangerateofcontrolvariablearealsoconsidered.Theoptimalcontrolmethodandthesimulatingmainprogramareprog

5、rammedbyFORTRANlanguagebasedonthePowerStation4.0software.Ourprogramisusedtostudyturboshaftengineaccelerationcontrol.TheresultsofsimulationshowthatitsfeasibletoapplySQPmethodtoturboshaftengineaccelerationcontrol.Itisprove

6、dthattheoptimalcontrollawiscorrectwhichshortenstheaccelerationtimeandimprovestheenginedynamicperformancegreatlycomparedwiththetraditionalPIDcontrolresults.Keywords:TurboshaftengineControllawNonlinearprogrammingOptimalcon