Title :
Modified nonlinear H∞ controller formulas and the H∞ I/O linearization problem
Author :
Hu, Shr-Shiung ; Yang, Pao-Hwa ; Chang, B.C.
Author_Institution :
Combined Service Forces, 202nd Arsenal, Nankang, Taiwan
Abstract :
A numerical difficulty arises when the existing nonlinear H∞ control formulas are employed to solve the H∞ I/O (input-output) linearization problem, which is formulated as an output feedback nonlinear H∞ control problem. We propose a modified nonlinear H∞ controller and successfully remove the numerical difficulty. A successive algorithm is also given to solve the Hamilton-Jacobi equation which is essential in the solution of the nonlinear H∞ control problem
Keywords :
H∞ control; approximation theory; closed loop systems; feedback; linearisation techniques; nonlinear control systems; robust control; step response; H∞ control; Hamilton-Jacobi equation; closed loop systems; linearization; nonlinear control systems; optimal control; output feedback; robust control; step response; Approximation algorithms; Control systems; Helium; Linear approximation; Linear feedback control systems; Nonlinear control systems; Nonlinear systems; Riccati equations; Robust control; State feedback;
Conference_Titel :
Decision and Control, 1998. Proceedings of the 37th IEEE Conference on
Conference_Location :
Tampa, FL
Print_ISBN :
0-7803-4394-8
DOI :
10.1109/CDC.1998.758249
