基于蚁群算法的群智能理论在系统优化中的应用分析

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1、-------华北电力大学硕士学位论文AbstractElectricpowerisoneofthemainformsandessentialpartofenergyutilizationinourcountryandeventheworld'senergy,thedemandoftheelectricpowerisalsoincreaseswiththesteadydevelopmentofoureconomyincreasingly.AtpresentinChina,themainwayofc

2、oal-firedpowerisstillinpowerproduction,sohowtoimprovetheutilizationofcoalresourcesandreducethecostofcoal-firedpowergeneration,becometheimportantproblemsofcurrentcoalresourceshortage.Modernindustrialprocesscontrolsystem,especiallymostoftheuseofPIDcontr

3、olforthermalprocesscontrolsysteminthermalpowerplant,thestabilityandparametersofitsreasonableornotdirectlyrelatedtothesafeandstableoperationandeconomicbenefitofthermalpowerunits.MoreandhigherrequirementshavebeenputforwardtoThermalcontroltechnologywitht

4、heincreasingcapabilityoftheThermalpowergeneratingunits.Howtogetreasonablecontrolparametersafterobtainingthemodelofthermalcontrolobjectsbecamenecessaryconditionsandkeytechnologyofthermalcontrolsystemdesign.Areasonablemodelstructurewiththeimprecisecontr

5、olparameterscouldinfluencetheeffectandefficiencyofcontrolsystem,andcauseinstabilityofthewholesystem,eventhreatenthesecurityofsystem.Antcolonyoptimizationisanewkindofsimulatedevolutionaryalgorithmthatsuitableforsolvingallkindsofcomplexcombinatorialopti

6、mizationproblem.Notonlyhastheabilitytosolvecombinatorialoptimizationproblemsindiscretedomain,butalsomadearichfruitsinsolvingthecontinuousspacefunctionoptimizationproblembothontheresearchandapplication.Basedonthebasictheoryofantcolonyalgorithmintheorig

7、inofthought,basicprinciple,algorithmmodelandimplementationmethods,thispapermainlyfocusontheapplicationofantcolonyalgorithminthePIDcontrollerparametersoptimization,how-toimprovethebasicantcolonyalgorithmtoworkbetterfordifferentcontrolobject,finallyappl

8、ytheantcolonyoptimizationandtheimprovementcalculationtoPIDparameteroptimizationofboilersteamlevelcontrolsystemandSteamtemperaturecontrolsystem.AntcolonyoptimizationprovidesanewmethodandthoughttoPIDparameteroptimization.Thisarticleisresearchthe