文章基本信息

标题：A Simplified Structure of the Simplest Interval Type-2 Fuzzy Two-Term Controller
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作者：Ritu Raj ; B.M. Mohan ; Jung–Min Yang 等
期刊名称：IFAC PapersOnLine
印刷版ISSN：2405-8963
出版年度：2020
卷号：53
期号：1
页码：661-666
DOI：10.1016/j.ifacol.2020.06.110
语种：English
出版社：Elsevier
摘要：AbstractInterval Type-2 (IT2) fuzzy controllers are quite efficient in handling disturbances and uncertainties. This is mainly due to the Footprint of Uncertainty (FoU) in type-2 fuzzy sets. However the computational complexity also increases with FoU. Therefore we propose a simplified structure of IT2 Takagi-Sugeno (TS) fuzzy two-term controller in this paper. A novel TS rule base is introduced which incorporates uncertainty in the input type-2 fuzzy sets and also in the rule consequent parameters. The rule base consists of two rules which are logically connected with ‘Algebraic Product (AP)’ AND operator and ‘Bounded Sum (BS)’ OR operator. AP and BS operators enable the simplification of the input plane which in turn reduces the complexity of the controller structure. Further, the performance of the controller structure is evaluated through simulation study on a nonlinear (coupled-tank) system.
关键词：KeywordsMathematical modelTakagi-Sugeno (TS) controllerPI/PD controllerInterval Type-2 (IT2) fuzzy controlFootprint of uncertainty (FoU)