基于Smith预估的恒压供水系统模糊免疫PID控制研究  

Research on fuzzy immune PID control of constant pressure water supply system based on Smith prediction

作　　者：李广军[1] 武瑞杰 李文强 LI Guangjun;WU Ruijie;LI Wenqiang(School of Automobile and Traffic Engineering,Jiangsu University of Technology,Changzhou 213001,China)

机构地区：[1]江苏理工学院汽车与交通工程学院,江苏常州213001

出　　处：《江苏理工学院学报》2023年第4期1-8,共8页Journal of Jiangsu University of Technology

基　　金：教育部产学合作协同育人创新项目“轨道交通信号与控制课程资源建设”(201801205003);江苏理工学院研究生教改项目“香港高校硕士研究生教育范式的专业硕士研究生人才培养模式的优化研究”(20810911802)。

摘　　要：针对供水系统水压控制存在的时滞、干扰多等特性,设计了一种基于Smith预估的模糊免疫PID控制系统。该控制系统基于免疫原理,利用模糊方法在线调整PID控制参数;同时,利用Smith预估器消除时滞的影响。以西门子S7-200PLC为例,对该控制系统进行设计,并给出关键步骤程序。Matlab仿真结果表明:与模糊免疫PID控制器相比,该系统响应的上升时间更快,抗干扰能力更强。采用Smith预估的模糊免疫PID控制系统,可以实现对恒压供水系统快速、稳定、可靠的控制。Aiming at the characteristics of time delay and interference in water pressure control of water supply system,a fuzzy immune PID control system based on Smith prediction is designed.The control system is based on the immune principle,using fuzzy method to adjust PID control parameters online.At the same time,the Smith predictor is used to eliminate the influence of time delay.Taking SIMATIC S7-200 PLC as an example,the con-trol system is designed and the key steps are given.Matlab simulation results show that compared with the fuzzy immune PID controller,the rise time of the system response is faster and the anti-interference ability is stronger.The fuzzy immune PID control system based on Smith predictor can realize fast,stable and reliable control of constant pressure water supply system.

关 键 词：恒压供水系统 Smith预估 模糊免疫PID PLC 

分 类 号：TU991[建筑科学—市政工程]