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非线性系统的模糊变结构控制及应用
引用本文:吴忠强,赵海英. 非线性系统的模糊变结构控制及应用[J]. 系统工程与电子技术, 2002, 24(5): 38-40
作者姓名:吴忠强  赵海英
作者单位:1. 燕山大学电气工程学院,河北,秦皇岛,066004
2. 燕山大学理学院,河北,秦皇岛,066004
摘    要:采用T S模糊动态模型逼近非线性系统 ,将非线性系统模糊化为局部线性模型。用Lyapunov稳定性理论设计出确保T S模糊模型全局渐近稳定的变结构控制器。应用到Lorenz和Rossler两类混沌系统的稳定控制中 ,仿真验证了方案的有效性 ,不需要改变被控混沌系统的内部结构 ,且具有良好的稳定性。模糊控制器结构简单 ,规则少 ,有推广应用价值

关 键 词:非线性系统  模糊变结构  混沌
文章编号:1001-506(2002)05-0038-03
修稿时间:2001-04-30

Fuzzy Variable Structure Control for Nonlinear Systems and Its Applications
WU Zhong-qiang+,ZHAO Hai-ying+. Fuzzy Variable Structure Control for Nonlinear Systems and Its Applications[J]. System Engineering and Electronics, 2002, 24(5): 38-40
Authors:WU Zhong-qiang+  ZHAO Hai-ying+
Affiliation:WU Zhong-qiang+1,ZHAO Hai-ying+2
Abstract:Through approximation with a T-S fuzzy dynamical model, the nonlinear system is fuzzified into a local linear model. A variable structure controller is designed by using Lyapunov theory to assure the stability of the global T-S fuzzy model. It is used in stability controll of two chaotic systems, i.e. Lorenz chaotic system and Rossler chaotic system and the effectiveness of the scheme is proven through simulation. A good stability is achieved, without changing the inner structure of the system being controlled. The fuzzy controller is simple, practicable and involves fewer rules.
Keywords:Nonlinear system  Fuzzy variable structure  Chaos
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