Artículos de revistas
Galerkin Method and Weighting Functions Applied to Nonlinear H(infinity) Control with Output Feedback
Fecha
2010Registro en:
JOURNAL OF VIBRATION AND CONTROL, v.16, n.12, p.1817-1843, 2010
1077-5463
10.1177/1077546309341140
Autor
FERREIRA, Henrique Cezar
SALES, Roberto Moura
ROCHA, Paulo Henrique Da
Institución
Resumen
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.