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Application of Multi-Mode Fuzzy Control in Alkali Recovery System
Author(s): 
Pages: 76-79,85
Year: Issue:  9
Journal: Measurement & Control Technology

Keyword:  fuzzy controlPID controlmulti-mode controlfuzzy switching;
Abstract: According to the technological process and control requirements of papermaking factory alkali recovery and evaporation section,in order to overcome the shortcomings of the black liquor such as long time delay,nonlinear,difficult to control,and to realize the treatment of black liquor more efficiently up to standard emissions,a multi-mode control algorithm based on fuzzy switching is proposed.This control algorithm has both advantages of traditional PID control algorithm and fuzzy control algorithm.The fuzzy switching method is introduced in the control system to improve the control precision and stability of the whole system.After debugging operation,the results show that the control scheme has a good control effect,which can effectively stabilize the liquid level of black liquor in the paper mill,and reduce the consumption of steam.It lays a good foundation for the effective utilization of alkali recovery in paper mills.
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