"forward" conditioning techniques

Abstract

The conditioning technique has been conceived and must always be considered as an a posteriori anti-windup method (the a priori knowledge of the non-linearity acting on the desired control variable has not to be known, provided a post-measurement of the actual control variable is furnished). And in this sense this kind of "backward" anti-windup should always be used because it is never possible to prejudge of any non-linearity that could appear. However, when an a priori knowledge of some non-linearities are known, it is possible to include this knowledge either in the synthesis of the control or in the conception of a "forward" anti-windup. Two examples of forward anti-windups are given in the paper, namely the optimal conditioning and the predictive conditioning techniques.