Adaptive Rule Based-Reasoning by Qualitative Analysis

Abstract

In some previous papers we presented a fuzzy-interpolative self-adaptive control architecture that is able to identify the current operating regime of the sys tem by means of a qualitative analysis of the phase tra jectory of the error. Here we are extending this tech nique in order to build a self-adjusting PID controller that can automatically set the input scaling factors. This way we can obtain simple interpola tive controllers embedding conventional knowledge on the PID controller adjusting, adapted from the Ziegler-Nichols method. © Springer-Verlag Berlin Heidelberg 2010.