摘要
曝气控制过程中的DO(溶解氧)值是影响污水处理水质的重要参数,DO值的高低直接影响鼓风机的曝气风量。由于活性污泥法是一个复杂的生物反应过程,难以用数学模型进行准确描述,采用常规PID控制能耗大,控制品质差,一直是困扰污水处理的难题。基于控制策略的比较研究,文章提出采用HSIC(仿人智能控制)策略来解决曝气控制过程中DO值波动的控制问题,文中给出了控制规则和控制系统结构。仿真试验表明该方法控制不仅系统动、静态品质好,节能效果也很显著,说明该控制策略是可行和有效的。
The dissolutive oxygen parameter value, which directly decides the amount of wind that the fan will give out and the great efficiency of energy saving, is one of the most important parameters effecting the quality of the treated wastewater. The activated-sludge process is a complicated biological process, which cannot be described precisely by a mathematical model. So a human-simulated intelligent control strategy is proposed to minish the fluctuation problem of DO parameter value, Both the control rules and the structure of control system are presented, and the simulation results shows that it is better not only in dynamic and steady quality of system, but also obvious in energy saving effect, feasible and effective in control strategy.
关键词
污水处理
溶解氧
仿人智能控制
Wastewater treatment Dissolutive oxygen（DO） Human-simulated intelligent control （HSIC）
