基于动态数据交换的PH值参数自调整模糊控制系统  

PH Parameter Self-adjustment Fuzzy Control System Based on Dynamic Data Exchange

作　　者：徐玲[1] 徐保国[1] 肖应旺[1] 

机构地区：[1]江南大学通信与控制工程学院,无锡214036

出　　处：《计算机工程》2004年第16期179-181,184,共4页Computer Engineering

摘　　要：设计了一套发酵控制系统,其中上位机采用工业通用组态软件“组态王”进行设计,现场控制部分采用OMRON公司的C200HE系列PLC。由于实际被控对象要求PH参数的控制具有很高的精度,因此针对发酵过程中PH值滞后、非线性、时变的特点,对PH参数采用参数自调整模糊控制,参数自调整模糊控制程序用VB6.0编程,而“组态王”与VB之间的数据交换通过动态数据交换DDE来实现。该套系统投入到某制药厂多粘菌素生产后效果良好,PH值控制误差达到±0.05PH,控制精度提高100％,取得了良好的经济效益。This paper designs a series of ferment control system, Among them, the superstratum machine adopts configuration software-'King View' which is used in industry geneeally to design, the spot control part adopts C200HE PLC of OMRON company .Because the practical controlled object of PH asks for a high precision ,a parameter self-adjustment fuzzy system of PH is adopted,which aimed at the PH value in the process of ferment is lag, nonlinear, and time-variable, the parameter self-adjustment fuzzy control process adopts VB6.0, the data exchange between 'King View' and 'VB' adopts dynamic data exchange DDE to realize. This system is used by a pharmacy factory to produce mycetozoan , the result is good. The PH value control error margin attains the±0.05, control the accuracy increases 100%,and it obtaines good and economic benefit.

关 键 词：DDE 参数自调整模糊控制 PH PLC 

分 类 号：TP273.5[自动化与计算机技术—检测技术与自动化装置]