Comparison between human supervisory control and hierarchical control system based on human´s knowledge in petroleum plant

Author

Kobayashi, Takahiro ; Tani, Tetsuji ; Abe, Nobuo ; Miyamoto, Sadaaki

Author_Institution

Dept. of Manuf., Idemitsu Kosan Co. Ltd., Chiba, Japan

Volume

1

fYear

1998

fDate

4-9 May 1998

Firstpage

200

Abstract

Presents a hierarchical control system which is designed based on a human´s knowledge, which is a supervisor of conventional PID controllers. The hierarchical control system consists of two control function blocks, where we use (1) a statistical model using multi-regression analysis for the function block to estimate parameters of plant operation and (2) fuzzy logic for the control function block to compensate operating conditions. The hierarchical control system has been applied to hydrogen purity controls in a large scale petroleum refining plant and verified that the control system has shown better performance than human supervisory control. The human supervisor is necessary only when the system structure changes in the hierarchical system

Keywords

fuzzy logic; hierarchical systems; oil refining; process control; statistical analysis; three-term control; control function blocks; conventional PID controllers; fuzzy logic; hierarchical control system; human supervisory control; human´s knowledge; hydrogen purity controls; multi-regression analysis; petroleum plant; statistical model; Control system synthesis; Control systems; Fuzzy logic; Humans; Hydrogen; Large-scale systems; Parameter estimation; Petroleum; Supervisory control; Three-term control;

fLanguage

English

Publisher

ieee

Conference_Titel

Fuzzy Systems Proceedings, 1998. IEEE World Congress on Computational Intelligence., The 1998 IEEE International Conference on

Conference_Location

Anchorage, AK

ISSN

1098-7584

Print_ISBN

0-7803-4863-X

Type

conf

DOI

10.1109/FUZZY.1998.687483

Filename

687483