摘要随着社会的进展,恒压供水越来越重要
本系统以 PLC 与变频器控制水泵工作,根据压力给定的理想值信号及管网水压的反馈信号进行比较,变频器根据比较结果调节水泵的转速,达到控制管网水压的目的
文中重点叙述了变频节能原理,恒压供水原理及 PID控制方式
并提供控制系统硬件和控制软件,经现场模拟调试成功,实现运行可靠、节能、低噪,维护简单等效果
关键词: 恒压供水;PLC 控制;闭环 PIDAbstractWith the development of society, more and more important in the constant pressure water supply
This system uses PLC and inverter control pump working pressure, according to the given ideal value signal and pressure of the pipe network compares the feedback signal, frequency converter according to the compared result, adjust the pump speed, to control the pressure of the pipe network for the purpose of
This paper mainly describes the energy saving principle of variable frequency, constant pressure water supply theory and PID control
And provides the control system hardware and control sof