污水曝气过程在线监控系统设计与仿真

Design and Simulation of On-line Monitoring System for Sewage Aeration Process

对于污水处理曝气环节,目前一些污水厂采用经验现场操作方法,即工作人员根据经验和现场仪表的数据对曝气过程进行调控,然而曝气环节存在间歇性、时滞性等影响,使得这种方法很难达到控制要求,且调试过程费时费力,不具有时效性。针对以上问题,设计了污水处理曝气过程在线监控系统,采用模糊PID控制策略改善曝气控制过程,由MCGS组态软件实现监控界面,但其脚本语言编译功能非常简单,难以编写复杂的控制策略,而MATLAB具有强大数据处理能力和复杂算法编译能力。文中基于OPC技术实现MATLAB和组态软件MCGS之间的数据交换,将两款软件优点相结合,设计出一个既拥有直观可视化界面,也能实现复杂控制策略的上位机,提高了监控系统的质量。

This paper designs sewage aeration process on-line monitoring system,using fuzzy PID control strategy to improve the aeration control process to solve above problems.MCGS configuration software to achieve the monitoring interface,because the script language compiler function is very simple.it is difficult to write a complex control strategy.However MATLAB with powerful data processing capabilities and sophisticated algorithms to compile.Based on OPC technology,it realizes data exchange between MATLAB and configuration software MCGS.