基于自适应模糊PID算法的污水除磷控制系统研究  

Research on the Control System of Phosphorus Removal from Wastewater Based on Adaptive Fuzzy PID Algorithm

作　　者：李家春[1] 陈波 阳启航 王永涛[2] LI Jia-chun;CHEN Bo;YANG Qi-hang;WANG Yong-tao(School of Mechanical Engineering,Guizhou University,Guiyang 550025,China;Guizhou Provincial Institute of Water Resources Sciences,Guiyang 550002,China)

机构地区：[1]贵州大学机械工程学院,贵阳550025 [2]贵州省水利科学研究院,贵阳550002

出　　处：《中国农村水利水电》2022年第5期7-12,共6页China Rural Water and Hydropower

基　　金：贵州省科技厅项目黔科合重大专项[2019]3014号-2;贵州省科技厅项目黔科合服企[2021]4号。

摘　　要：针对磷矿污水除磷工艺的非线性、时变性及延迟性大等特点和使用单一的PID控制易出现超调现象等问题,提出将模糊控制技术与PID控制相结合的研究方法,设计出一套基于自适应模糊PID算法的磷矿污水除磷自动控制系统。通过对以往数据分析,设定模糊PID控制器中的隶属函数,并对模糊规则中的参数进行实时修正,从而达到自适应优化控制性能的效果。通过MATLAB仿真分析和试验测试,表明该控制系统具备良好的稳定性和自适应能力,并可达到对除磷药剂的高效利用和实现经济性的效果。Aiming at the non-linear,time-varying and large delay characteristics of the phosphorus removal process from phosphate rock and the problems that the single PID control is prone to overshoot,this paper proposes a research method that combines fuzzy control technology with PID control,and designs a set of automatic control system for phosphorus removal from phosphate mine wastewater based on the adaptive fuzzy PID algorithm.Through an analysis of the past data,the membership function in the fuzzy PID controller is set,and the parameters in the fuzzy rules are modified in the real time so as to achieve the effect of self-adaptive optimization of control performance.MATLAB simulation analysis and experimental testing show that the control system has good stability and self-adaptability,and can achieve the effect of efficient use of phosphorus removal agents and economic efficiency.

关 键 词：污水除磷 自适应模糊PID 自动控制系统 仿真分析 

分 类 号：TH-39[机械工程]