Computer and Modernization ›› 2018, Vol. 0 ›› Issue (07): 39-.doi: 10.3969/j.issn.1006-2475.2018.07.008

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FractionalOrderControlBasedonImprovedPSOAlgorithmforHeatingSystem

  

  1. (CollegeofElectronic&ElectricalEngineering,BaojiUniversityofArtsandSciences,Baoji721013,China)
  • Received:2018-01-15 Online:2018-08-23 Published:2018-08-27

Abstract: Forfractionalorderheatingsystem,afractionalordercontrolmethodbasedonimprovedparticleswarmoptimizationalgorithmisproposed.First,thechemotaxismechanismofbacteriaisintroducedintotheparticleswarmoptimizationalgorithmwithconstrictionfactortosolvetheproblemofthePSOpopulationdiversitylost,whichiscausedbecausethereisonlyattractionoperationwithoutexclusionoperationinPSOalgorithm.
ThismethodcanpreventfallingintolocaloptimumbecauseofPSOprematureconvergence.ThentheimprovedPSOalgorithmisusedtooptimizetheparametersoffractionalordercontroller.Finally,takingtheheatingsystemasthecontrolledobject,theimprovedparticleswarmoptimizationalgorithm,thestandardparticleswarmoptimizationalgorithmandthegeneticalgorithmareusedrespectivelytooptimizetheparametersofthefractionalordercontroller.Thesimulationresultsshowthatbyusingtheimprovedalgorithmtosetthefractionalordercontrollerparameters,andthecontrollercaneffectivelyrestraintheperturbationofthemodelparameters,therobustnessofthesystemisbetter.

Key words: fractionalorder, particleswarmoptimization, robustness, geneticalgorithm

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