The Discussion on Interval Type-2 Fuzzy Logic Controller with Stewart Platform

• Main Authors: Meng-Shiuan Shen, 沈孟軒
• Other Authors: Chin-I Huang
• Format: Others
• Language: zh-TW
• Published: 2011
• Online Access: http://ndltd.ncl.edu.tw/handle/91632404071182735611

碩士 === 國立高雄第一科技大學 === 系統資訊與控制研究所 === 99 === In this study, due to the Stewart Platform is high complexity system of uncertainty and imprecision information. It extends the traditional concept of fuzzy logic to discussion on interval type-2 fuzzy logic system (IT2FLS). The proposed IT2FLS could improve the performance of the traditional limitations of type-1 fuzzy logic system (T1FLS). Furthermore, the Karnik-Mendel (KM) algorithm is used to reduce order from interval type-2 fuzzy sets. In the same situation case, the performance of IT2FLC compare effectively with T1FLC through the command voltage signals and the experimental results such as the step and sinusoidal tracking responses. Hence, the proposed controller is feasibility and effectiveness. In thesis research, the most suitable interval and end-points of the membership functions of IT2FLC are designed. In the future, a novel hybrid fuzzy controller maybe be employed to online switching based on the target error and the user’s experiences.