非线性变结构不确定连续系统的反馈控制  

Output feedback control of the nonlinear various structureunctertain system: its application to fuzzy adaption

作　　者：保宏[1] 段宝岩[1] 阎力[2] 

机构地区：[1]西安电子科技大学机电工程学院,陕西西安710071 [2]中电集团第39所,106室陕西西安710065

出　　处：《西安电子科技大学学报》2004年第1期39-42,共4页Journal of Xidian University

基　　金：国家自然科学基金资助项目(50075065);教育部高校博士基金资助项目

摘　　要：针对具有变结构且对象未知的单输入单输出的非线性系统模型的特点,基于自适应模糊,提出了一种具有投影功能的新型"扩张状态观测器".该方法能有效跟踪变结构非线性系统的各阶状态变量,拓宽了非线性状态误差反馈控制器和自抗扰控制器的应用范围,同时给予了稳定性证明.最后,通过数值仿真验证了方法的可行性和有效性.By considering the special characteristics of an unknown disturbance and an unknown plant of single-input/output nonlinear variable structure systems, based on the fuzzy adaptive controller, a new method with the projection function for controlling the variable structure is presented. Because the method can track satisfactorily all types of state of a class of uncertain variable structure systems, it can extend the nonlinear state error feedback control law (NLSEF) and auto disturbance rejection controller (ADRC) application field. Furthermore, the proof of the stability of the method is made mathematically. Finally, three examples are given to demonstrate the method.

关 键 词：非线性系统 模糊自适应控制 输出反馈 非线性变结构 不确定连续系统 反馈控制 

分 类 号：TP273.4[自动化与计算机技术—检测技术与自动化装置]