基于PID的变频恒压供水系统的设计  

Constant Pressure Water Supply System Design Based on PID Frequency

作　　者：黄以鹏[1] 郁琰[1] 

机构地区：[1]江阴职业技术学院,江苏江阴214405

出　　处：《机械制造与自动化》2011年第5期127-129,共3页Machine Building & Automation

摘　　要：为实现恒压供水,系统采用可编程序控制器(PLC)为主控器,变频器为执行机构,完成基于PID的变频恒压供水系统的硬件和软件的设计。实现管网压力的准确采集,自动调节某台水泵的转速和多台水泵的投入及退出,使管网主干管出口端的压力保持在一定的范围内。供水控制系统投入运行后,各项指标达到了设计要求。To realize constant pressure water supply,the programmable logic controller（PLC） and inverter are used as the main controller and as actuators in the system to complete the hardware and software design of frequency constant pressure water supply system.The pipe pressure accurate data of the system is acquired to regulate the pump speed select pumps which are in operation or out of operation,so that the pressure is made keep in the specified range.After the operation of the water supply eontrol system,all the indexes meet the design requirements.

关 键 词：恒压供水 可编程序控制器控制 变频器 

分 类 号：TH12[机械工程—机械设计及理论] TM921.51[电气工程—电力电子与电力传动]