Redundant Fuzzy Sets of the Easy-T Type Fuzzy Controllers

簡易－T型式模糊控制器之法則庫的簡化

陶金旺(C. W. Tao)

《宜蘭技術學報》 6期 (2001/06) Pp. 57-67

https://doi.org/10.6179/nit.2001.06.17

摘要

在此文中，我們將提出一方式來簡化簡易－T型式模糊控制器之法則庫。主要的作法是將簡易－T型式模糊控制器輸入變數之模糊集合的歸屬函數加以修改，以定出所謂的多餘（redundant）模糊集合。將這多餘模糊集合法去除，可產生具有較少數目之法則的等效模糊控制器。我們亦將證明此等模糊控制器與原模糊控制器具有相同的輸入－輸出對應，來顯示此簡化方式之正確性。

關鍵字

模糊控制器 ； 多餘模糊集合

並列摘要

In this paper, and approach to indicate the redundant input fuzzy sets of the fuzzy rule base of the single input single output Easy-T type fuzzy controllers is proposed. The main idea is to modify the membership functions of fuzzy sets of input variables of the Easy-T type fuzzy controllers to point out the redundant fuzzy sets. The equivalent fuzzy controllers of the Easy-T type fuzzy controllers are constructed to have the redundant fuzzy sets been taken off. Thus, less number of fuzzy if-then rules are needed for the fuzzy rule base of the equivalent fuzzy controllers. The justification of this modification approach is provided to show that the equivalent fuzzy controllers and original Easy-T type fuzzy controllers have the same input-output mappings.

並列關鍵字

Fuzzy controller ； Redundant fuzzy sets