Simulating a fuzzy level controller for flotation columns

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• 作者：Yinfei Liao ; ^{ruiyin@126.com} ; Jiongtian Liu ; Yongtian Wang ; Yijun Cao
• 关键词：Flotation column ; Fuzzy control ; Level ; Simulation
• 刊名：Mining Science and Technology (China)
• 出版年：2011
• 出版时间：November 2011
• 年：2011
• 卷：21
• 期：6
• 页码：815-818
• 全文大小：657 K

文摘

Level control in flotation columns is an important factor that influences the recovery and the grade of concentrate from the column. A flotation column is a nonlinear, multi-variable problem with changeable parameters that traditional methods have difficulty controlling. We have applied fuzzy control methods to the flotation column and tested the performance of the design by Matlab/Simulink simulation. The simulations show that level control in the flotation column becomes smoother and more rapid with the fuzzy controller. Compared to PID control methods the overshoot in valve position, the adjustment time, and the robustness of the controller are all improved. This indicates that it is suitable to model fuzzy controllers in applications for the study of automatic control of flotation column.