Title :
Variable Universe Adaptive Fuzzy Control for Liquid Lever
Author :
Ni, Jianyun ; Luo, Jing ; Chen, Zaiping ; Chen, Jing
Author_Institution :
Tianjin Key Lab. for Control Theor. & Applic. in Complicated Syst., Tianjin Univ. of Technol., Tianjin
Abstract :
Variable universe adaptive fuzzy controller tunes automatically the contraction-expansion factor and universe varies with error of the system. By this approach, the accuracy and the adaptivity of the system can be improved. Aiming at the nonlinearity and time-delay of the plant, a variable universe adaptive fuzzy control for liquid lever system is proposed. First, the mathematical model of the plant is established. Then, a variable universe adaptive fuzzy controller (VUAFC) is designed to control the open degree of valve in the liquid lever system. Simulation results show that the approach improves performance in the transient and steady state of liquid lever.
Keywords :
adaptive control; control nonlinearities; control system synthesis; delays; fuzzy control; level control; process control; valves; contraction-expansion factor; control nonlinearity; industrial process control; liquid lever system; mathematical model; time delay; valve control; variable universe adaptive fuzzy control design; Adaptive control; Automatic control; Control systems; Error correction; Fuzzy control; Fuzzy systems; Mathematical model; Programmable control; Steady-state; Valves; adaptive fuzzy control; liquid lever; variable universe;
Conference_Titel :
Computational Intelligence and Design, 2008. ISCID '08. International Symposium on
Conference_Location :
Wuhan
Print_ISBN :
978-0-7695-3311-7
DOI :
10.1109/ISCID.2008.118
