PLC+变频器的自来水厂循环投切恒压供水控制系统设计  

Design of Circulating Water Supply Constant Pressure Water Supply Control System for PLC+ Inverter in Waterworks

作　　者：马莉[1] 王超[1] 宋莉莉[1] MA Li;WANG Chao;SONG Li-li(Department of Physics,Changji University,Changji Xinjiang 831100)

机构地区：[1]昌吉学院物理系,新疆昌吉831100

出　　处：《数字技术与应用》2018年第5期16-19,共4页Digital Technology & Application

摘　　要：设计基于PLC和变频器控制的多泵循环变频恒压供水方案,根据管网压力、流量信号自动调整泵运行数量及状态;泵运用变频调速控制管网水压;系统含自动及手动运行方式,运用PID调节原理,实现供水和用水的动态平衡。Design the multi pump circulating constant pressure water supply scheme based on PLC and frequency converter, automatically adjust the number and state of the pump according to the pressure and flow signal of the pipe network. The pump uses frequency conversion speed control to control the water pressure of the pipe network; the system contains automatic and manual operation mode, and uses PID to adjust the original principle to realize the dynamic balance of water supply and water use.

关 键 词：变频调速 恒压供水 循环投切 PLC PID 

分 类 号：TP2[自动化与计算机技术—检测技术与自动化装置]