哈尔滨工业大学学报
哈爾濱工業大學學報
합이빈공업대학학보
JOURNAL OF HARBIN INSTITUTE OF TECHNOLOGY
2001年
2期
217-210
,共-6页
模糊控制%变结构控制%模糊滑动面%模糊Lyapunov函数
模糊控製%變結構控製%模糊滑動麵%模糊Lyapunov函數
모호공제%변결구공제%모호활동면%모호Lyapunov함수
通过对各种模糊变结构控制设计方法的深入分析,揭示了其与常规边界层法的相似性.首先探索了模糊控制与变结构控制两种控制方法的关系,并利用模糊逻辑调节变结构控制器的不连续增益来平滑系统的抖振,从而产生了一种混合控制器-模糊变结构控制.进而将其归结为两类不同的算法-模糊滑动面法和模糊Lya-punov函数法,前者仅利用系统状态距离滑动面的远近,后者同时又引入了该距离变化的大小.利用Matlab的模糊控制工具箱分析了各自的本质,结果表明模糊变结构控制仅仅是常规变结构控制中边界层法的进一步延伸,而不是更广意义上的变结构控制.
通過對各種模糊變結構控製設計方法的深入分析,揭示瞭其與常規邊界層法的相似性.首先探索瞭模糊控製與變結構控製兩種控製方法的關繫,併利用模糊邏輯調節變結構控製器的不連續增益來平滑繫統的抖振,從而產生瞭一種混閤控製器-模糊變結構控製.進而將其歸結為兩類不同的算法-模糊滑動麵法和模糊Lya-punov函數法,前者僅利用繫統狀態距離滑動麵的遠近,後者同時又引入瞭該距離變化的大小.利用Matlab的模糊控製工具箱分析瞭各自的本質,結果錶明模糊變結構控製僅僅是常規變結構控製中邊界層法的進一步延伸,而不是更廣意義上的變結構控製.
통과대각충모호변결구공제설계방법적심입분석,게시료기여상규변계층법적상사성.수선탐색료모호공제여변결구공제량충공제방법적관계,병이용모호라집조절변결구공제기적불련속증익래평활계통적두진,종이산생료일충혼합공제기-모호변결구공제.진이장기귀결위량류불동적산법-모호활동면법화모호Lya-punov함수법,전자부이용계통상태거리활동면적원근,후자동시우인입료해거리변화적대소.이용Matlab적모호공제공구상분석료각자적본질,결과표명모호변결구공제부부시상규변결구공제중변계층법적진일보연신,이불시경엄의의상적변결구공제.
Presents the demonstration of the similarities with conventional boundary method by analyzing all kinds of fuzzy variable structure control (FVSC) design methods, the exploration of the relations between fuzzy control and variable structure control, and the use of fuzzy logic to adjust the discontinuous gain of variable structure controller for smoothing the system chattering phenomenon,and then a kind of hybrid controller-fuzzy variable structure control, and the two different algorithms-fuzzy sliding surface method and fuzzy Lyapunov function method, of which, the former only utilizes the distance from system to sliding surface, while the latter introduces the change of the distance at the same time,and the analysis of respective essence by Matlab's Fuzzy Systems Toolbox,and concludes from the results of analysis that FVSC is a further extension of the boundary layer in conventional VSC, and not a broader structure of VSC.