Title :
Adaptive fuzzy control for SISO nonlinear time-delay systems
Author :
Zifang, Qu ; Zhenbin, Du ; Zhaowei, Liu
Author_Institution :
Shandong Inst. of Bus. & Technol., Yantai
Abstract :
This paper presents an adaptive fuzzy tracking control scheme for SISO nonlinear time-delay systems. The scheme organically synthesizes adaptive control and Hinfin control. A kind of adaptive time-delay fuzzy logic systems is constructed and used to approximate the unknown time-delay functions. A Hinfin compensator is designed to eliminate fuzzy approximation errors and external disturbances. The adjusting laws for parameters are derived by the tracking error. The Lyapunov function with time delays is constructed, and then it is proved that the error closed loop system satisfies the anticipant Hinfin tracking performance. The simulation results demonstrate that the control scheme is feasible.
Keywords :
Lyapunov methods; adaptive control; closed loop systems; delays; fuzzy control; nonlinear control systems; Hinfin control; Lyapunov function; SISO nonlinear time-delay systems; adaptive fuzzy tracking control; adaptive time-delay fuzzy logic systems; error closed loop system; fuzzy approximation errors; Adaptive control; Approximation error; Control system synthesis; Control systems; Fuzzy control; Fuzzy logic; Fuzzy systems; Lyapunov method; Nonlinear control systems; Programmable control; SISO; fuzzy logic systems; nonlinear systems; time delays; tracking control;
Conference_Titel :
Control Conference, 2007. CCC 2007. Chinese
Conference_Location :
Hunan
Print_ISBN :
978-7-81124-055-9
Electronic_ISBN :
978-7-900719-22-5
DOI :
10.1109/CHICC.2006.4346780
