事件触发机制下的网络控制系统主-被动混合鲁棒容错控制研究
Project Number61463030
王君
Abstract控制系统具有良好的容错能力是非常重要的。当前NCS容错控制研究主要集中在被动容错,主动容错因其复杂性而关注较少。然而被动容错固定的控制器是保守的,无法实现对预设之外故障的容错,也很难达到系统性能最优;虽然主动容错控制方法具有较少保守性,且性能优于被动容错,但故障诊断的可靠性与时延会直接影响容错的效果。因此,本项目拟从主-被动混合容错控制入手,针对不确定线性和非线性NCS,考虑执行器失效故障,采用状态反馈,在事件触发通信机制下,以建立事件触发闭环故障系统模型为基础,以为混合容错有效实现而进行的少保守性和低复杂度控制器设计、受控制器重组/重构需求信息驱动的完整主动容错集成设计、以及依故障诊断信息的不同控制器之间无扰切换等为主要研究内容,从而通过事件触发机制下不确定NCS的混合鲁棒容错控制系统设计,拓宽系统的安全工作段程,在尽可能少占用网络资源的前提下,保证NCS的安全性和最优的闭环性能。【英文摘要】Itisveryimportantforacontrolsystemtohavegoodfault-tolerancecapacity.Atpresent,researchonpassivefault-tolerantcontrolofNCSdoesmorethanitsactiveonesbecauseofitscomplexity.However,thesingle?xedcontrollerofpassivefault-tolerantisconservative.Itcan'trealizethefault-tolerancetothefailureswhichareoutsideofthepresumedset,anditishardtoachieveoptimalsystemperformance.Althoughtheactivefault-tolerantcontrolislessconservativeandbetterinitsperformancethanthepassiveones,thereliabilityandtime-delayoffaultdiagnosiswilldirectlyinfluencetheeffectoffault-tolerance.Therefore,thisprojectwillstartfromtheactive-passivehybridfault-tolerantcontrol,aimingattheuncertainlinearandnonlinearNCS.Itistheresearchbasisthattheevent-triggeredclosed-loopfaultsystemmodelisestablishedagainsttheactuatorfailureundertheevent-triggeredcommunicationmechanism,usingstatefeedbackcontrolstrategy.Theprojecthasthreeparts:todesignthecontrolleroflessconservativeandlowcomplexityforeffectiveimplementationofthehybridfault-tolerantcontrol;todesigntheintegratedactivefault-tolerantdrivenbyrecon?guration/reconstructiondemandinginformationofcontroller;andtorealizesmoothswitchingbetweenthedifferentcontrollersbasedonthefault-diagnosisinformation.Finally,throughthedesignofhybridrobustfault-tolerantcontrolsystem,thesafetyworkareaoftheNCSgetsbroaden,andensuretheoptimalclosed-loopperformanceundertheconditionoftheleasttakenupnetworkresources.
Subtype地区科学基金项目
Project Source国家自然科学基金
2015-01
End Date2018-12
MOST Discipline Catalogue12 - 信息科学 ; 1203 - 自动化
Host Institution兰州理工大学
Project Funding460000.0
CountryCN
Language中文
Document Type项目
Identifierhttp://ir.lut.edu.cn/handle/2XXMBERH/64706
Collection电气工程与信息工程学院
Recommended Citation
GB/T 7714
王君.事件触发机制下的网络控制系统主-被动混合鲁棒容错控制研究.2015.
Files in This Item:
There are no files associated with this item.
Related Services
Usage statistics
Google Scholar
Similar articles in Google Scholar
[王君]'s Articles
Baidu academic
Similar articles in Baidu academic
[王君]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[王君]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.