模糊变结构控制及设计方法

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，首先探索了模型控制与变结构控制两种控制方法的关系，并利用模型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Lyapunov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。

Design of fuzzy variable structure control

Presents the demonstration of the similarities with conventional boundary method by analyzing all kinds of fuzzy variable structure control (P/SC) 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.