Title :
Fuzzy sliding mode controller design with variable sliding surface
Author :
Lu, Hung-Ching ; Hung, Ta-Hsiung
Author_Institution :
Dept. of Electr. Eng., Tatung Univ., Taipei, Taiwan
Abstract :
In this paper, a fuzzy sliding mode controller (FSMC) with the variable sliding surface instead of the fixed sliding surface and adjustable membership functions are proposed. The Taguchi´s method and the Takagi-Sugeno (TS) fuzzy model are applied to regulate the membership functions and modify the parameter to time-varying, respectively. Through these modifications, a suitable membership function can be obtained without trial-and-error and can improve the oscillation phenomenon of control law during the reaching phase. Finally, an inverted pendulum system is proposed to simulate and the experiment verified that the proposed method has the satisfactory results.
Keywords :
Taguchi methods; control system synthesis; fuzzy control; fuzzy set theory; variable structure systems; Taguchi method; adjustable membership function; control law; fixed sliding surface; fuzzy model; fuzzy sliding mode controller design; inverted pendulum system; oscillation phenomenon; reaching phase; time-varying parameter; trial-and-error; variable sliding surface; Control theory; Design methodology; Electric variables control; Fuzzy control; Fuzzy logic; Fuzzy set theory; Fuzzy systems; Performance analysis; Region 1; Sliding mode control;
Conference_Titel :
Computational Cybernetics, 2005. ICCC 2005. IEEE 3rd International Conference on
Print_ISBN :
0-7803-9122-5
DOI :
10.1109/ICCCYB.2005.1511546