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1、自動(dòng)化專業(yè)學(xué)科前沿講座課程作業(yè)講座題目：魯棒控制理論講授教師：瞿福存學(xué)生姓名：學(xué)生班級(jí)：學(xué)號(hào)：完成日期：成績(jī)?cè)u(píng)定：翻譯：PrefaceStrikingdevelopmentshavetakenplacesince1980infeedbackcontroltheory.Thesubjecthasbecomebothmorerigorousandmoreapplicable.Therigorisnotforitsownsake,butratherthateveninanengineeringdisciplinerigorcanleadtoclarityandtomethodical
2、solutionstoproblems.Theapplicabilityisaconsequencebothofnewproblemformulationsandnewmathematicalsolutionstotheseproblems.Moreover,computersandsoftwarehavechangedthewayengineeringdesignisdone.Thesedevelopmentssuggestafreshpresentationofthesubject,onethatexploitsthesenewdevelopmentswhileemphas
3、izingtheirconnectionwithclassicalcontrol.Controlsystemsaredesignedsothatcertaindesignatedsignals,suchastrackingerrorsandactuatorinputs,donotexceedpre-specifiedlevels.Hinderingtheachievementofthisgoalareuncertaintyabouttheplanttobecontrolled(themathematicalmodelsthatweuseinrepresentingrealphy
4、sicalsystemsareidealizations)anderrorsinmeasuringsignals(sensorscanmeasuresignalsonlytoacertainaccuracy).Despitetheseeminglyobviousrequirementofbringingplantuncertaintyexplicitlyintocontrolproblems,itwasonlyintheearly1980sthatcontrolresearchersre-establishedthelinktotheclassicalworkofBodeand
5、othersbyformulatingatractablemathematicalnotionofuncertaintyinaninput-outputframeworkanddevelopingrigorousmathematicaltechniquestocopewithit.Thisbookformulatesapreciseproblem,calledtherobustperformanceproblem,withthegoalofachievingspecifiedsignallevelsinthefaceofplantuncertainty.翻譯：前言 自1980
6、年以來(lái)發(fā)生了引人注目的進(jìn)展反饋控制理論。這個(gè)話題變得更嚴(yán)格、更適用。嚴(yán)格不是為了自己使用,而是,即使在一個(gè)工程學(xué)科嚴(yán)謹(jǐn)會(huì)導(dǎo)致清晰和有條理的解決問(wèn)題。適用性是一種后果的新配方和新問(wèn)題的數(shù)學(xué)解決這些問(wèn)題。此外,計(jì)算機(jī)和軟件改變了工程設(shè)計(jì)完成的方式。這些進(jìn)展表明新鮮的話題,他們利用這些新發(fā)展,強(qiáng)調(diào)與經(jīng)典控制?！ 】刂葡到y(tǒng)是為了讓某些指定的信號(hào),如跟蹤錯(cuò)誤和致動(dòng)器的輸入,不超過(guò)預(yù)先設(shè)定的水平。阻礙這一目標(biāo)的實(shí)現(xiàn)是不確定性的控制(我們使用的數(shù)學(xué)模型,在代表實(shí)際物理系統(tǒng)理想化)和錯(cuò)誤測(cè)量信號(hào)(傳感器可以測(cè)量信號(hào)只有在一定精度)。盡管看似明顯的要求將工廠明確不確定性引入控制問(wèn)題,直到1980
7、年代初,控制人員重新鏈接到經(jīng)典波德和其他人的工作制定一個(gè)容易處理的數(shù)學(xué)概念的不確定性在一個(gè)投入產(chǎn)出框架和發(fā)展中嚴(yán)謹(jǐn)?shù)臄?shù)學(xué)技巧來(lái)應(yīng)對(duì)它。這本書制定精確的問(wèn)題,稱為魯棒性能問(wèn)題,實(shí)現(xiàn)指定的目標(biāo)信號(hào)水平的植物不確定性。
