%0 Journal Article
%T Symbol-type adaptive fuzzy controller<br>符号型自适应模糊控制器
%A GUO Hai-gang
%A YANG Wan-cai
%A <br>郭海刚
%A 杨万才
%J 控制理论与应用
%D 2012
%I 
%X The design of contraction-expansion factor is crucial in variable universe fuzzy control. Using Lyapunov synthetic analysis, we propose an adaptive fuzzy control with sign function to avoid the design of contraction-expansion factor. In this scheme, the stretch operator of control input employs the sign function instead of the exponential function or the scale function employed in variable universe fuzzy control design, and the consequence adjustment still uses an integral regulation. Compared with the variable universe fuzzy control, the proposed scheme is essentially a kind of fuzzy control with variable universe with less fuzzy rules, higher steady precision and higher robustness to external disturbance. Lyapunov stability theory guarantees the asymptotic convergence of tracking error. A simulation example shows the efficacy of the proposed scheme.
%K sign function
%K variable universe
%K contraction-expansion operation
%K Lyapunov synthetic design<br>符号函数
%K 变论域
%K 伸缩运算
%K Lyapunov
%K 综合设计
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=8240383F08CE46C8B05036380D75B607&jid=970898A57DFC021F93AB51667BAED7F7&aid=AB480754FB5F26FEFEA53DA49D38F627&yid=99E9153A83D4CB11&vid=771469D9D58C34FF&iid=94C357A881DFC066&sid=36C49E1242CC2C7A&eid=66D0A4667FE1A38D&journal_id=1000-8152&journal_name=控制理论与应用&referenced_num=0&reference_num=0