高阶SISO非线性系统的分层模糊滑模控制  

Hierarchical fuzzy sliding-mode control for higher-order SISO nonlinear systems

作　　者：于娜[1] 张乃尧[1] 

机构地区：[1]清华大学自动化系,北京100084

出　　处：《清华大学学报（自然科学版）》2005年第4期529-532,共4页Journal of Tsinghua University(Science and Technology)

基　　金：国家自然科学基金资助项目(60174015)

摘　　要：为了解决高阶SISO(单输入单输出)非线性系统模糊控制中出现的"维数灾"问题,采用典型模糊控制单元,构造了"增一型"分层模糊控制器。提出了分层模糊滑模控制方法,并证明了分层模糊滑模控制系统的全局渐近稳定性。该方法设计参数少,设计步骤简单,并且控制器的设计参数只需要满足一定的比例关系即可使整个分层模糊滑模控制系统全局渐近稳定,从而减小了模糊控制器的设计工作量和难度。用一个仿真例子验证了该方法的有效性和优点。Large dimension higher-order SISO (Single-Input Single-Output) nonlinear fuzzy control systems can be more easily analyzed using a 'one-plus' hierarchical fuzzy controller based on a typical fuzzy control unit. The method uses a hierarchical fuzzy sliding-mode control method with proven global asymptotic stability. The method has few design parameters and a simple design procedure, so it can guarantee the global asymptotic stability of hierarchical fuzzy sliding-mode control systems, as long as the controller parameters satisfy the stability equation. The method reduces the design workload and difficulty of analyzing fuzzy controllers. A simulation example demonstrates the efficiency and advantages of the method.

关 键 词：分层模糊控制 非线性系统 滑模控制 稳定性 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]