Thesis
Rechazo de perturbaciones por técnicas de estructura al infinito y control geométrico
Autor
ING. LEYVA GILES., YTZEEN
Institución
Resumen
In this paper are showed two methods used in the theory of control systems for the
problem of disturbance rejection. The first of these methods is called the structure at
infinity, which works in the frequency domain, use the mathematical models of the
nominal system and the perturbed system, make analysis of the structure at infinity of
each model and if the structure at infinity of both systems are similar, the theory suggests
that the system supports disturbance rejection. To illustrate this method using examples
academics as well as physical problems. The second is the geometric approach, this
method works with states equations and invariant subspaces. This looking for reject the
disturbance in a subspace invariant by a suitable control function so that the disturbance
does not affect the system output. Like the first method also used academic and physical
examples for illustration. To compare the two methods working in a hydraulic press and a
thermal system.