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Robust nonlinear control for nuclear reactors using sliding mode observer to estimate the xenon concentration

【摘要】Thispaperpresentsfindingsontheslidingmodecontrollerforanuclearreactor.Oneoftheimportantoperationsinnuclearpowerplantsisloadfollowing.Inthispaper,aslidingmodecontrolsystem,whichisarobustnonlinearcontroller,isdesignedtocontrolthepressurizedwaterreactorpower.Thereactorcoreissimulatedbasedonthepointkineticsequationsandsixdelayedneutrongroups.Consideringneutronabsorberpoisonsandregardingthelimitationsofthexenonconcentrationmeasurement,aslidingmodeobserverisdesignedtoestimateitsvalue,andfinally,aslidingmodecontrolbasedontheslidingmodeobserverispresentedtocontrolthecorepowerofreactor.ThestabilityanalysisisgivenbymeansLyapunovapproach;thus,thecontrolsystemisguaranteedtobestablewithinalargerange.Theemployedmethodiseasytoimplementinpracticalapplications,andmoreover,theslidingmodecontrolexhibitsthedesireddynamicpropertiesduringtheentireoutput-trackingprocessindependentofperturbations.Simulationresultsarepresentedtodemonstratetheeffectivenessoftheproposedobserverbasedcontrollerintermsofperformance,robustnessandstability.

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957 共9页 核技术:英文版 2016年2期 免费 中文科技期刊数据库

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