王艷華,王志飛
?
王艷華,王志飛
(朝陽師范高等專科學(xué)校 數(shù)學(xué)計(jì)算機(jī)系,遼寧 朝陽 122000)
考慮由T-S模糊模型描述的一類不確定非線性系統(tǒng),定義規(guī)則如下:
給定一種理想的參考模型如下:
應(yīng)用假設(shè)1對(duì)模型(2)進(jìn)行變換,得
將狀態(tài)跟蹤誤差表示為:
假設(shè)2模糊控制器設(shè)計(jì)為
由上式和參考模型(4),可構(gòu)造如下的增廣系統(tǒng):
是二次穩(wěn)定的.
所以由式(13)得
根據(jù)schur補(bǔ)引理,得到
考慮全局模糊系統(tǒng)(2)由兩條規(guī)則描述
狀態(tài)輸出圖如下:
[1] TAKAGI T, SURGEON M. Fuzzy identification of systems and its applications to modeling and control[J]. IEEE Transactions on Systems, Man and Cybernetics, 1985, 15(1): 116-132.
[2] KHALIL H K. Nonlinear systems[M]. 3rd ed. Englewood Clifs: Prentice-Hall, 2002.
[3] SLOTINE J J E, LI WEIPING. Applied Nonlinear Control[M]. Englewood Clifs: Prentice-Hall, 1991.
[4] TSENG C S, CHEN B S, UANG H J. Fuzzy tracking control design for nonlinear dynamic systems via T-S fuzzy model[J]. IEEE Transactions on Fuzzy Systems, 2001, 9(3): 381-392.
[6] 俞 立. 魯棒控制――線性矩陣不等式處理方法[M]. 北京: 清華大學(xué)出版社, 2002.
[7] XIU ZHIHONG, REN GUANG. Stability analysis and systematic design of Takagi-Surgeon fuzzy control systems[J]. Fuzzy Sets and Systems, 2005, 151(1): 119-138.
WANG Yanhua, WANG Zhifei
(Department of Mathematics and Computer, Chaoyang Teachers College, Chaoyang 122000, China)
2014-03-14;
2014-04-16
王艷華(1980— ), 女, 遼寧朝陽人, 朝陽師范高等??茖W(xué)校數(shù)學(xué)計(jì)算機(jī)系講師.
O231.2
A
2095-4476(2014)08-0011-05
(責(zé)任編輯:饒 超)
湖北文理學(xué)院學(xué)報(bào)2014年8期