Model of Heating Fuzzy Intelligent Control System of Large-Scale Coke Oven

Abstract:

Coke oven production has the characteristics of nonlinear, large inertia, large disturbances, and highly-coup ling and so on. The control method of “intermittent heating control” is adopted in traditional heating control system of coke oven, and cannot satisfy the command of heating control on coke oven. The control principle of combining the “intermittent heating control” with the heating gas flow adjustment is adopted according to analysis the difficulty and strategy of heating control on coke oven. On the basis of studying deficiency of the existing control strategy, fuzzy compound control is proposed to establish heating intelligent control model of coke oven, which combines feedback control, feedforward control and fuzzy intelligent control. Carbonization index is used in the model to control coking management of coke oven. Then heating fuzzy intelligent control structure of coke oven is built. According to artificial experience and actual condition, fuzzy controller is designed. Fuzzy control can deal with fuzzy, inexact or uncertainty information and has great robust, which can realize intelligent control of heating process of coke oven. Better control result of temperature control is realized by fuzzy intelligent control model. The system has great practical value.

• Periodical: Applied Mechanics and Materials (Volumes 29-32)
• Pages: 979-984
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.29-32.979
• Online since: August 2010
• Authors: Gong Fa Li, Jian Yi Kong, Guo Zhang Jiang, Liang Xi Xie
• Keywords: Fuzzy Compound Control, Heating Intelligent Control, Intelligent Control System, Large-Scale Coke Oven

References

[1] Jukka Swanijung and Petri Palmu, Development of Coke-oven Battery Process Management System at Rautaruukki Steelworks, Iron and Steel Engineer, Vol. 73, 1996, pp.46-49.

[2] Jukka Swanijung and Petri Palmu, Experience and results of new heating control system of coke oven batteries at Rautaruukki OY Raahe Steel, Ironmaking Conference Proceedings, 1997, pp.79-83.

[3] E.T. Battel and K.L. Chen, Automatic coke oven heating control system at Burn Harbor Works for normal and repair operation, Ironmaking Conference Proceedings, 1997, pp.499-504.

[4] Jiang Guozhang, Kong Jianyi and Li Gongfa, Intelligent Control System for Coke Oven Heating, Chinese Journal of Iron and Steel, Vol. 41, 2006, pp.73-76.

DOI: 10.1109/ccdc.2010.5499083

[5] Li Gongfa, Kong Jianyi and Jiang Guozhang, Research and Application on Compound Intelligent Control System for Coke Oven Heating, Chinese Journal of Iron and Steel, Vol. 43, 2008, pp.89-92.

DOI: 10.1109/wcica.2008.4593622

[6] Euntai Kim, A new approach to numerical stability analysis of fuzzy control systems, IEEE Trans on Systems, Vol. 31, 2001, pp.107-133.

DOI: 10.1109/5326.923273

[7] Tanaka. H, Yasuno. M and OSHIMA. h, Application of Fuzzy Inference to Combustion Control for Coke Oven, Ironmaking Conference Proceedings (1992), pp.509-513.