摘要
以在线监测的DO(Dissolved Oxygen,溶解氧)值为控制变量,建立曝气过程的传递函数,设计模糊控制器,对CASS(CyclicActivated Sludge System,周期循环活性污泥法)工艺曝气控制进行了模糊控制和PID控制的MATLAB仿真对比。结果表明:在响应速度和超调量方面,模糊控制优于PID(Proportion Integration Differentiation)控制,两者的稳态误差均在3%以内。
To improve the auto-control of the aeration in CASS process, the online-monitoring DO value was chosen as the control variable, then a transfer function was established for the aeration process and a fuzzy controller was designed. The simulation of the fuzzy controller and a PID controller was run in MATLAB. The results show that the fuzzy control was superior than the PID control in response speed and overshoot. Both the steady-state error were within 3%.
出处
《水科学与工程技术》
2011年第5期26-28,共3页
Water Sciences and Engineering Technology
