摘要
针对溶解氧浓度控制存在响应速度低和工艺能耗高等问题,结合模糊PID算法,提出将溶解氧浓度控制转化为对鼓风机电机转速的控制,并采用模糊规则对鼓风机电机转速进行精确控制的方法。仿真结果表明,构建的模糊PID控制器达到系统设定的溶解氧浓度值仅需75 s,与传统的PID算法相比,缩短了45 s;在实际应用中,通过模糊PID控制的溶解氧浓度能保持稳定,维持在2.5 mg/L左右,具有一定的有效性。
Aiming at the problems of low response speed and high process energy consumption in dissolved oxygen concentration control,combined with fuzzy PID algorithm,a method is proposed to convert dissolved oxygen concentration control into blower motor speed control,and fuzzy rules are used to accurately control blower motor speed.The simulation results show that it takes only 75 s for the fuzzy PID controller to reach the dissolved oxygen concentration set by the system,which is 45 s shorter than the traditional PID algorithm;In practical application,the dissolved oxygen concentration controlled by fuzzy PID can remain stable at about 2.5 mg/L,which is effective.
作者
何昕雷
HE Xinlei(Jinshan College,Fujian Agriculture and Forestry University,Fuzhou 741020,China)
出处
《粘接》
CAS
2022年第3期177-181,共5页
Adhesion
关键词
模糊PID
污水处理
溶解氧浓度
自动控制
fuzzy PID
sewage treatment
dissolved oxygen concentration
automatic control
