受扰线性系统的最优跟踪控制方法分析

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1、哈尔滨工业大学工学硕士学位论文关键词：扰动抑制；最优跟踪；状态反馈；复合控制；动态补偿-II-万方数据哈尔滨工业大学工学硕士学位论文AbstractTheoptimaltrackingcontrolproblemisthecombinationoftheoptimalcontroltheoryandthetrackingcontroltheory.Theresearchonoptimaloutputtrackinganddisturbancesuppressionofcontrolsystemplaysonimportantroleinthefi

2、eldofoceanexploration,aerospacedevelopment,industrialcontrol.Currently,theoptimaloutputtrackingproblemshasachievedrelativelyabundantaccomplishment.However,theactualcontrolsystemstendtobeaffectedbyvariousexternaldisturbancesignals,resultinginthedeteriorationoftheperformance,an

3、devenunderminethestabilityofthesystem.Nowadays,theresearchonoutputtrackinganddisturbancerejectionismainlybasedonthestatefeedbackcontrolandstaticoutputfeedbackcontrol.However,theresearchbasedonthecompoundcontrolanddynamiccompensationcontrolisrelativelyrare,whichhasveryimportan

4、ttheoreticalandpracticalresearchvalue.Therefore,thisthesisdesignstheoptimalcompoundfeedbackcontrollawandtheoptimaloutputtrackingcontrollawofthedisturbedlinearcontrolsystem,andcomparestheircontroleffects.Themaincontentsofthisthesisaresummarizedasfollows:1.Theapplicationbackgro

5、undandresearchsignificanceofthesubjectaredescribed.Thedevelopmentoftheoptimalcontroltheoryisreviewed.Theresearchstatusoftheoutputtrackingcontrolisintroduced.Thebasictheoryofthelinearquadraticoptimalcontrol,theoptimaloutputtrackingcontrolandtheoptimaldisturbancerejectionisdesc

6、ribed.2.Theoptimaloutputtrackingproblemofthedisturbedlinearcontrolsystembasedoncompoundcontrollawisdiscussed.Weobtaintheoptimaloutputtrackingcontrollawbasedoncompoundcontrolwhichminimizesthefinitetimedomainandinfinitetimedomainperformanceindexbyapplyingtheprincipleofminimalva

7、lueandcanonicalequation.Thenweconstructtheorder-reducedobserveroftheexternaldisturbanceanddesiredoutputsignalswhichmakestheoptimaloutputtrackingcontrollawbasedoncompoundcontroleasytoimplementphysically.3.Theoptimaloutputtrackingproblemofthedisturbedlinearcontrolsystembasedond

8、ynamiccompensationcontrollawisdiscussed.Wecantransformtheoptimaloutp