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1、中文摘要本文主要研究帶有外部擾動的廣義線性時滯系統(tǒng)有限時間穩(wěn)定及鎮(zhèn)定問題.首先,在外部擾動范數(shù)有界情況下,給出了廣義線性時滯系統(tǒng)有限時間穩(wěn)定的兩種定義.根據(jù)兩種定義,通過構(gòu)造Lyapunovi函數(shù)的方法,應(yīng)用線性矩陣不等式,相應(yīng)地給出了使得帶有外部擾動的廣義線性時滯系統(tǒng)有限時間穩(wěn)定的兩個判據(jù).然后,在給出的帶有外部擾動的廣義線性時滯系統(tǒng)有限時間穩(wěn)定的定義以及穩(wěn)定性判據(jù)的基礎(chǔ)上,給出了使得帶有外部擾動的閉環(huán)廣義線性時滯系統(tǒng)有限時間穩(wěn)定的充分條件,設(shè)計了相應(yīng)的狀態(tài)反饋控制器.然而,在使用線性矩陣不等式方法時,不
2、等式中存在的非線性約束阻礙了狀態(tài)反饋增益矩陣的求解.因此,本文采用最大特征值與最小特征值的方法對相應(yīng)矩陣進(jìn)行估計,同時應(yīng)用錐補(bǔ)線性化方法將非線性約束條件轉(zhuǎn)化成可解的線性矩陣不等式,從而設(shè)計出使得閉環(huán)系統(tǒng)有限時間穩(wěn)定的狀態(tài)反饋控制器.?dāng)?shù)值例子與仿真結(jié)果表明了本文所提出的設(shè)計方法的有效性.關(guān)鍵詞:廣義線性時滯系統(tǒng);有限時間穩(wěn)定;有限時間鎮(zhèn)定;狀態(tài)反饋;外部擾動;線性矩陣不等式:錐補(bǔ)線性化黑龍江大學(xué)碩士學(xué)位論文AbstractInthispaperfinite-timestabilityandfinite-tim
3、estabilizationproblemsforaclassofsingularlineartime-delaysystemswithtime-varyingexogenousdisturbancesarestu出ed.Firstofall,twodifferentdefinitionsoffinite-timestabilityforsingularlineartime-delaysystemsalegivenwhentheexogenousdisturbancesarenorn'lbounded.Ac
4、cordingtothesetwodefinitions,twosufficientconditionsofthefinite-timesta.bilityforthiskindofsystemsarepresentedbycombiningLyapunovapproachandlinearmatrixinequalitytechnique.Then,basedonthedefinitionsandsufficientconditionsofthefinite-timesta-bilityforthiski
5、ndofsystems,onefinite-timestabilizationconditionforthisl【indofsystemsispresentedandthecorrespondingstatefeedbackcontrollerisdesigned.However,thenonlinearproblemswhichpreventUStogetthestatefeedbackgaininthelinearmatrixinequalitiesaxesolvedbymaximum-eigenval
6、ueand.m......i...n....i...m.——u.....m.—.-eigenvalueapproachaswellasanalgorithmso-calledconecomplementaritylin-eaxization.Thereby,theconsideredfinite-timestabilizationproblemviastatefeed-backcontrollerissolved.Theeffectivenessoftheapproachesproposedinthispa
7、perarepresentedbynumericalexamples.Keywords:singularlineartime-delaysystems;finite-timestability;fmite-timestabilization;statefeedback;exogenousdisturbance;linearmatrixinequality;conecomplementaritylinearizationII—目錄中文摘要..............。.....................
8、IAbstract.....................................II目錄.......................................III符號說明....................................V第1章緒論...................................1i.I有限時間穩(wěn)定及鎮(zhèn)定問題的研究現(xiàn)狀..............1