Fuzzy Optimization Control System and its Application in Ball Mill Pulverizing System

2006 ◽  
Author(s):  
Xiao-Feng Li ◽  
Yu-Xing Zeng ◽  
Jian Sun ◽  
Yong Li ◽  
Hui-Yan Wu
Keyword(s):  
Control System ◽  
Ball Mill ◽  
Fuzzy Optimization ◽  
Optimization Control

An intelligent optimization control method for the electrode current of submerged arc furnaces based on case reasoning

2020 ◽  
Vol 234 (10) ◽  
pp. 1088-1100
Author(s):  
Jianjun He ◽  
Chang Wang ◽  
Qi Zhu ◽  
Ling Shen ◽  
Mande Jing ◽  
...  
Keyword(s):  
Control System ◽  
Control Method ◽  
Arc Furnace ◽  
Intelligent Optimization ◽  
Electrode Current ◽  
Three Phase ◽  
Optimization Control ◽  
Submerged Arc Furnace ◽  
Case Reasoning ◽  
Submerged Arc

Due to the nonlinearity, strong coupling, and time-varying characteristics of three-phase electrode lift system of submerged arc furnace, the existing manual operation has the problems of electrode control hysteresis, poor balance of three-phase electrode current, and blindness of electrode current target setting. An intelligent optimization control method for the electrode current of submerged arc furnace based on case reasoning is proposed in this article, which is used to realize the automatic control of the electrode control system of the submerged arc furnace. First, the optimization model of electrode current setting value of the submerged arc furnace is established by the case-based reasoning method, and the corresponding electrode current value is calculated to maximize the yield in the safe power range of the furnace. Next, a three-phase electrode current decoupling controller is designed based on fuzzy rules. Finally, an intelligent optimization control system of three-phase electrode current of submerged arc furnace is designed and its superiority is verified by comparison with the proportional–integral–derivative controller. The designed control system has been applied to the smelting production of submerged arc furnace in a domestic smelter. The simulation and industrial operation results show that the system realizes automatic balance adjustment of electrode current of submerged arc furnace under normal working conditions, which greatly reduces the labor intensity of the operator, increases the smelting yield, reduces the unit energy consumption, and brings significant economic and social benefits to the enterprise.

Using DCS to Realize Ball Mill Fuzzy Control System

2014 ◽  
Vol 568-570 ◽  
pp. 1131-1134
Author(s):  
Yan Jun Wang
Keyword(s):  
Control System ◽  
Fuzzy Control ◽  
Ball Mill ◽  
Control Method ◽  
Good Control ◽  
Pi Controller ◽  
Decoupling Control ◽  
Control Effect ◽  
Hot Air ◽  
Look Up Table

By way of summarizes operation experience, using fuzzy control method to realize the decoupling control of coal mill cold air damper, hot air damper and coal feeder, by using cascade control of fuzzy control look up table and PI controller in DCS, it’s convenient to realized the automatic control of ball mill. Practice proves that this method is easy to achieve and good control effect could be achieved.

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