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《基于微粒群算法的智能滑??刂品椒ㄑ芯俊酚蓵?huì)員上傳分享,免費(fèi)在線(xiàn)閱讀,更多相關(guān)內(nèi)容在學(xué)術(shù)論文-天天文庫(kù)。
1、中文摘要本論文概述了智能滑模變結(jié)構(gòu)控制的研究現(xiàn)狀,并在此基礎(chǔ)上研究了滑模控制與自適應(yīng)控制、模糊控制以及微粒群算法(PSO)相結(jié)合的控制策略。首先,針對(duì)一類(lèi)線(xiàn)性控制系統(tǒng),提出了一種基于微粒群算法的自適應(yīng)滑??刂品椒?,應(yīng)用一個(gè)簡(jiǎn)單的自適應(yīng)算法來(lái)估計(jì)系統(tǒng)中總不確定量的上確界,并且利用微粒群算法(PSO)來(lái)優(yōu)化調(diào)節(jié)控制器的自適應(yīng)參數(shù)及切換參數(shù),來(lái)改善控制器的性能,在保持系統(tǒng)原有魯棒性的基礎(chǔ)上削弱了抖振。其次,針對(duì)一類(lèi)典型的伺服驅(qū)動(dòng)系統(tǒng),提出了基于微粒群算法的模糊滑??刂品椒ǎ瑢⒒?刂品椒ㄅc模糊控制方法相結(jié)合,利用模糊推理來(lái)估計(jì)系統(tǒng)中總不確定量的上確界,而用微粒群算法(P
2、SO)來(lái)優(yōu)化調(diào)整模糊控制中隸屬度函數(shù)的中心值,該方法結(jié)合了滑??刂?、模糊控制與微粒群算法優(yōu)點(diǎn),不僅保持了滑??刂品椒ǖ聂敯粜裕窒魅趿硕墩?。最后,針對(duì)感應(yīng)電機(jī)伺服驅(qū)動(dòng)系統(tǒng),采用了一種多段滑模控制方法,在動(dòng)態(tài)響應(yīng)過(guò)程中采用了不同的滑模控制器,并且利用微粒群算法(PSO)來(lái)調(diào)整各個(gè)控制器的控制增益,使系統(tǒng)得到最優(yōu)的動(dòng)態(tài)特性。對(duì)上述各種控制方法都進(jìn)行了仿真研究,結(jié)果證明了方法的正確性和有效性。關(guān)鍵詞:滑??刂?SMC);微粒群算法(PSO);模糊控制;抖振;多段滑模控制(MSSMC):ABS丁RACTStudyonIntelligentSliding—ModeContr
3、olBasedonParticleSwarmOptimizationGraduateStudent:YuanhaoShiDirectedby:JinggangZhangZhimeiChenABSTRACTThi:paper’theofth,intellig,SlidinghisPerreviewsthepresentstatusofthentelliaentSdinaModeControl(SMC),anddevelopsthecontrolstrategyoftheSlidingModeControl(SMC)combinedwithadaptivecontro
4、l,fuzzycontrolandParticleswarmoptimization(PSO).?一一‘oFirstly,Ibraclassoflinearcontrolsystem,anadaptiveSMCbasedonPSOisproposed.Inordertoimprovetheperformanceofthecontrollerandreducechatteringonthebasisofkeepingtheoriginalrobustnessofthesystem,asimpleself-adaptivealgorithmisutilizedtoes
5、timatetheboundofuncertainties,andaPS0iSdevelopedtosearchthefavorableadaptiveparametersandswitchingparameters.111echatteringphenomenaaremuchreducewhilerobustofsystemcanbemaintained.Next,foraclassoftypicalservodrivesystem,aPSO.basedfuzzySMCsystemisproposed.Inthismethod,thefuzzyinference
6、mechanismisutilizedtoestimatetheboundofuncertainties,andtheparametersoffuzzyinferencemechanismviaPS0.Themethod,whichcombinesthemeritsoftheSMC.thefuzzyinferencemechanismandthePSO,callkeeptherobustnessoftheSMCandreducethechattering.Moreovegamulti—segmentsliding—modecontrol(MSSMC)ispropo
7、sedtocontroltheIMservosystem.Inthismethod,differentSMCcontrollersareusedintheprocessofdynamicresponse,andaPSOisdevelopedtosearchthefavorablecontrolgainofeachcontroller.Finally,theeriectivenessandthecorrectnessofthemethodsaredemonstratedbysomesimulatedresults.111基于微粒群算法的智能滑??刂品椒ㄑ芯縆eywo
8、rds:S