Artículos de revistas
Galerkin Method and Weighting Functions Applied to Nonlinear H(infinity) Control with Output Feedback
JOURNAL OF VIBRATION AND CONTROL, v.16, n.12, p.1817-1843, 2010
FERREIRA, Henrique Cezar
SALES, Roberto Moura
ROCHA, Paulo Henrique Da
This paper considers two aspects of the nonlinear H(infinity) control problem: the use of weighting functions for performance and robustness improvement, as in the linear case, and the development of a successive Galerkin approximation method for the solution of the Hamilton-Jacobi-Isaacs equation that arises in the output-feedback case. Design of nonlinear H(infinity) controllers obtained by the well-established Taylor approximation and by the proposed Galerkin approximation method applied to a magnetic levitation system are presented for comparison purposes.