%0 Journal Article
%T Study on Qualitative Stability for a Class of Qualitative Control System<br>一类定性控制系统的稳定性分析
%A LIU Lin-yun
%A WAN Bai-wu
%A T P Leung
%A <br>刘林运
%A 万百五
%A 梁天培
%J 控制理论与应用
%D 2000
%I 
%X This paper defines qualitative stability for a class of nonlinear plant,and offers a sufficient criterion for qualitative stability of its close loop autonomous system,then the step of constructing the Lyapunov function using variable gradient method is obtained. Finally,for a two order nonlinear plant, a qualitative control which uses all qualitative status as feedback is proposed,and the qualitative stability of close loop control system is discussed.
%K qualitative stability
%K qualitative control
%K qualitative value<br>定性量
%K 定性控制系统
%K 稳定性分析
%K 定性控制器
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=8240383F08CE46C8B05036380D75B607&jid=970898A57DFC021F93AB51667BAED7F7&aid=E49DAE86CEFB5B9C&yid=9806D0D4EAA9BED3&vid=BCA2697F357F2001&iid=0B39A22176CE99FB&sid=A58CF3BAE79427D0&eid=E114CF9BB47B65BE&journal_id=1000-8152&journal_name=控制理论与应用&referenced_num=2&reference_num=3