废水处理中pH值计算机模糊控制系统的设计

酸碱中和是化工废水处理中的一个重要环节。本ｐＨ值控制系统采用ＰＩＤ控制和模糊控制并列转换形式，当系统的偏差较小时，采用ＰＩＤ法进行流程控制；而当系统的偏差较大时，采用计算机模糊控制。介绍ｐＨ值计算机模糊控制系统设计原理与模糊控制器的实现，包括模糊化处理、模糊规则库的建立、模糊计算和反模糊化处理。在废水处理工艺流程中采用该控制方法可获得高效、稳定的控制效果。

Designing of Computer Fuzzy Control System for Controlling of pH Value in Wastewater Treatment.

Acidbase neutralization is an important process in treatment of chemical industrial wastewater. The pH value control system introduced here adopted a parallel transforming approach with both PID control method and fuzzy control method. When the deviate of the system is low, PID control method is usually used for processing control. While the deviate of the system is high, computer fuzzy control method is usually used. The principles for designing of pH value computer fuzzy control system are described. The operation of fuzzy controller including fuzzy treatment,fuzzy regulating database setting,fuzzy calculating and counterfuzzy treatment are also introduced. To apply this control system in wastewater treatment processes could result in high treatment efficient and stable control of the treatment.