Title :
Design of LQ-type nonlinear servo-systems
Author_Institution :
Dept. of Mech. Syst. Eng., Tokyo Univ. of Agric. & Technol., Japan
Abstract :
This paper presents a method for designing output feedback servo-controllers for nonlinear systems. First, the design method of state feedback regulators for nonlinear systems, which are called LQ-type nonlinear regulators, is derived based on the complete square method with a Hamilton-Jacobi-Bellman equation. Second, observers for nonlinear systems are designed, and the output feedback controller is designed by combining the regulator and the observer. Such systems are called “LQ-type nonlinear output feedback control systems”. Third, by using these results, LQ-type output feedback nonlinear servo-systems are designed to track reference signals for both cases with and without disturbances
Keywords :
control system synthesis; linear quadratic control; nonlinear control systems; observers; servomechanisms; stability; state feedback; Hamilton-Jacobi-Bellman equation; LQ-type nonlinear servo-systems; complete square method; nonlinear systems; observers; output feedback servo-controllers; reference signals tracking; state feedback regulators; Control systems; Cost function; Design methodology; Equations; Erbium; Nonlinear control systems; Nonlinear systems; Optimal control; Output feedback; Regulators;
Conference_Titel :
Control of Oscillations and Chaos, 1997. Proceedings., 1997 1st International Conference
Conference_Location :
St. Petersburg
Print_ISBN :
0-7803-4247-X
DOI :
10.1109/COC.1997.631343
