基于CMAC+PID并行控制的污水处理应用研究

Based on CMAC + PID Parallel Control of Sewage Treatment Applied Research

污水处理系统中的生化反应为严重非线性、滞后过程,其中溶解氧浓度的控制是污水处理中最重要的过程。采用手动操作或常规的PID控制很难达到良好的效果。本文通过对污水处理溶解氧浓度控制过程的分析,采用一种CMAC+PID并行控制的方法对溶解氧浓度进行控制。该方法简单易行且仿真表明该方法控制下系统的响应速度非常快,超调量小,过渡时间短,具有很好的动态性能和稳定性。

Wastewater treatment system of biochemical reaction for serious nonlinear, lag process, including the concentration of dissolved oxygen control is one of the most important process in wastewater treatment. By manual operation or conventional PID control is difficult to achieve good effect. In this paper, through the analysis of the control of dissolved oxygen concentration in the wastewater treatment process using a parallel control of CMAC ＋ PID method to control the dissolved oxygen concentration. This method is simple and the simulation show that the method control system response speed is very fast, less overshoot, short transition time, has a good dynamic performance and stability.