基于HDP的一類時滯離散時間非線性系統(tǒng)最優(yōu)跟蹤控制的研究.pdf

1、廣西大學碩士學位論文基于HDP的一類時滯離散時間非線性系統(tǒng)最優(yōu)跟蹤控制的研究姓名：胡洲申請學位級別：碩士專業(yè)：控制理論與控制工程指導教師：宋春寧20120628RESEARCHESoNoPTIMAITRACl(INGCoNTRoLFoRACLASSoFDISCRETETIM咂NONLINEARSYSTEMSWITHTIMEDELAYSBASEDONHEURISTICDYNAMICPRoGRAMMINGABSTRACTTunedelayi

2、sallubiquitousphenomenon，chemicalprocesssystems、transmissionsystems、powersystemsaletypicalofthetimedelaysystemTimedelayscouldresultintheeffectivenessofthecontroHerreduced，theworstcasemayleadtodeteriorationofsystemperform

3、ance，andevensysteminstabilitySothestudyofdelaysystemswithoutinterruption，especiallyinthefieldofcontrol，timedelayproblemhasbeenthefocusofattentioninthefieldAdaptiveDynamicProgramming(ADP)isanoptimizationalgorithm，whichbas

4、edondynamicprogramming、reinforcementlearningandbackpropagationThecoreideaoftheadaptivedynamicprogrammingistoapproximatetheperformancefunctionofthesystemtogettheoptimalcontrol，thealgorithmavoidsthe“curseofdimensionality’’

5、ofdynamicprogramming，itisveryappropriatelyusedinthenoisy、nonlinearandnonstationaryenvironments，andthealgorithmisalsoconsideredtobeaveryeffectivemethodtosolvetheoptimalcontrolproblemInrecentyears，thealgorithmgetscloseatte

6、ntionofmanyscholarsInthispaper，definitionofdelaysystemsandthebasicprinciplesoftheHeuristicDynamicProgramming(HDP)arefirstlydescribed，andthenfocusonthestudyoftheoptimaltrackingcontrolproblemoftimedelaysystembasedontheADPa

7、lgorithmOntheonehand，foraclassofnonlineardiscretetimesystemswithtimedelay，bydefiningtheerrorfunction，conversionofsystemandlls啦anewtypeofperformanceindexfunctionforthetrackingproblem，thentheoptimaltrackingcontrolproblemis

8、transformedtotheoptimalregulationproblem，andthenusetheHDPalgorithmtosolvetheoptimaltrackingcontrolproblem；Ontheotherhand，basedontheoptimaltrackingcontrolwithouttimedelay，byintroducingthetimedelayfunction，thetimevaryingop