一種基于魯棒界切換策略的線性時(shí)變系統(tǒng)控制算法.pdf

1、武漢科技大學(xué)碩士學(xué)位論文一種基于魯棒界切換策略的線性時(shí)變系統(tǒng)控制算法姓名：戴鳴力申請(qǐng)學(xué)位級(jí)別：碩士專業(yè)：控制理論與控制工程指導(dǎo)教師：趙明旺20040506第1I頁(yè)武漢科技大學(xué)碩士學(xué)位論文ABSTRACTThecontrolproblemsfortime—varyingsystemsareadifficultyallalongToatime—varyingsystem，aRiccatiequationoraLyapunovequation

2、willbeperformedwhenacontrollerdesignedAsitisdifficulttosolveanonlinearequationandcannotobtainananalyticresult，thecontrolproblemsfortimevaryingsystemareusuallyignoredButalargeofcontrolplantsistimevaryingsystemsincontrolen

3、gineering；thestudyoftimevaryingsystemsmustbeapromisingfutureItiswellknownthatswitchingsystemsusuallycontactwithMultimodelsystems，andthecontrolproblemsforMulti—modelismorecomplicatedthanforsinglemodelToacertainextent，thec

4、ombinationoftheswitchingcontroltheorieswithothercontroltechnologysolvedMulti—modelcontrolproblemshadalreadyachievedhighSuccessSuchasinthefieldoftheadaptivecontrol，theMulti—modelsystemswithlargeuncertaintieshavebeensolved

5、accordingtodefinitionofswitchingconditions、designofswitchingstrategiesButinasense，timevaryingsystemsareequaltoMulti—modelsystemsbecauseofMulti—modelintime—varyingsystemsThisgivesUSenlightenmentthatwhetherswitchingcontrol

6、theoriesmaysolvethecontrolproblemsfortime—varyingsystemsAccordingtoperturbationandrobustboundsintherobustcontroltheoriestheauthordesignsanewcontrolalgorithm，whichdividestime—varyingsystemsintosomesectionsIneverysection，t

7、ime—varyingmodeliscomposedofthenominalmodelandperturbation，andthecontrolleraccordingtothenominalmodelappliesintimevaryingsystemSocontrolalgorithmnotonlymakesthenominalmodelstableaSymptotically，butalsomakesthetime—varying

8、systemstableasymptoticallyIntheend，tookadvantageofswitchingbetweenmodelswithmodels，weachievetheobjectthatmakethetime—varyingsystemcontrolledSimulationsshowtheeffectivenessofthealgorithmandCanavoidthedifficultiesinaRiccat