模糊变结构控制及设计方法  

Design of fuzzy variable structure control

作　　者：于双和[1] 傅佩琛[1] 强文义[1] 

机构地区：[1]哈尔滨工业大学控制科学与工程系,黑龙江哈尔滨150001

出　　处：《哈尔滨工业大学学报》2001年第2期217-220,共4页Journal of Harbin Institute of Technology

摘　　要：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。The demonstration of the similarities with conventional boundary method by analyzing all kinds of fuzzy variable structure control design methods was presented. The relation 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 were described. The hybrid controller-fuzzy variable structure control containing fuzzy sliding surface method and fuzzy Lyapunov function method was given, of which the former only utilizes the distance from system to sliding surface while the latter introduces the change of the distance simultaneously.

关 键 词：模糊控制 变结构控制 模糊滑动面 模糊LYAPUNOV函数 设计方法 

分 类 号：TP273.4[自动化与计算机技术—检测技术与自动化装置]