Latin Abstract :
This paper focuses on the synthesis of well-conditioned rnultivariable robust controllers for a broad class
of multi-input multi-output two-time-scale nonlinear systems with time-varying uncertain variables,
modeled within the framework of singular perturbations. The proposed controller stabilizes the fast
dynamics, guarantees boundedness of trajectories, and ensures that the ultimate discrepancy between the
outputs and the external reference inputs in the closed-loop system can be made arbitrarily small by
an appropriate choice of controller parameters, provided that the singular perturbation parameter is
sufficiently small. The developed control method is tested, through simulations, on a fluidized catalytic
cracking reactor,
