A fuzzy operator model for process control.
Yoshiteru Nakamori, Mina Ryoke, Kazuyuki Suzuki · Journal of Advanced Science · 1994
The fuzzy sets theory has provided a new direction to design process controls by multi-model approach.This paper proposes a new method to build operator models for process controls by means of the hyperellipsoidal clustering method that becomes the focal point of fuzzy modeling.The clustering algorithm combines hierarchical and non-hierarchical procedures, and does not require a priori assumption on the number, centroids, and volumes of clusters.An application study under consideration is the stable incineration control of a rotary kiln process treating excess sludge from a municipal wastewater treatment plant.