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一类非线性不确定系统的模糊自适应控制
引用本文:王银河,戴冠中.一类非线性不确定系统的模糊自适应控制[J].控制理论与应用,2004,21(2):271-274.
作者姓名:王银河  戴冠中
作者单位:1. 汕头大学,理学院,广东,汕头,515063;内蒙古师范大学,数学系,内蒙古,呼和浩特,010022
2. 西北工业大学,自动控制系,陕西,西安,710072
基金项目:国家重点基础研究发展规划项目(G1998030471); 汕头大学科学研究专项经费项目; 广东省自然科学基金项目(032035); 内蒙古自然科学基金项目(200208020201).
摘    要:利用模糊逻辑系统具有逼近连续函数的性质,研究了一类非线性不确定系统的自适应模糊控制问题.控制器和自适应律的构成直接利用了系统的结构信息和模糊逻辑系统的输出信息,在较弱的假设条件下,这种控制器使被控系统的状态及参数估计误差一致终极有界.最后的仿真算例说明了本文所采用方法的有效性.

关 键 词:不确定性    模糊逻辑系统    自适应律    一致终极有界
文章编号:1000-8152(2004)02-0271-04
收稿时间:2001/6/20 0:00:00
修稿时间:2003/2/26 0:00:00

Adaptive fuzzy control for a class of nonlinear uncertain systems
WANG Yin-he,DAI Guan-zhong.Adaptive fuzzy control for a class of nonlinear uncertain systems[J].Control Theory & Applications,2004,21(2):271-274.
Authors:WANG Yin-he  DAI Guan-zhong
Affiliation:Science College, Shantou University, Guangdong Shantou 515063,China; Department of Mathematics, Inner Mongolia Normal University, Inner Mongolia Huhhot, 010022,China; Department of Automatic Control, Northwestern Polytechnic University, Shanxi Xi'an 710072,China
Abstract:By employing fuzzy logic system with the property of approximating any continuous function with arbitrary, the adaptive laws and controllers are synthesized for a class of nonlinear systems with uncertainties, the bounded functions of which are unknown. The architecture of laws and controllers depends directly on the information from the construction of the nominal systems of systems controlled and the fuzzy logic system. Under some simple conditions, the laws and controllers make the states of systems controlled and parameter estimate errors uniformly ultimately bounded (UUB). Finally, the simulation shows the validity of the method in this paper.
Keywords:uncertainty  fuzzy logic system  adaptive control  uniformly ultimately bounded (UUB)
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