基于 plc 变频调速供水系统的设计摘要：随着社会主义市场经济的发展，人们对供水质量和供水系统可靠性的要求不断提高；再加上目前能源紧缺，利用先进的自动化技术、控制技术以及通讯技术，设计高性能高节能、能适应不同领域的恒压供水系统成为必然的趋势本论文分析变频恒压供水的原理及系统的组成结构，提出不同的控制方案，通过研究和比较，本论文采用变频器和 PLC 实现恒压供水和数据传输，然后用数字 PID 对系统中的恒压控制进行设计。最后对系统的软硬件设计进行了详细的介绍。本论文设计与实现通过 MCGS 进行数据传输的远程网络巡回监控系统。具体讲述了系统的总体设计与软件的实现，并对系统采取的可靠性措施进行了说明。本论文的变频恒压供水系统已在国内许多实际的供水控制系统中得到应用，并取得稳定可靠的运行效果和良好的节能效果。经实践证明该系统具有高度的可靠性和实时性极大地提高了供水的质量，并且节省了人力，具有明显的经济效益和社会效益。关键字：变频调速；恒压供水；PLC；MCGS；监控系统AbstractWith the rapid development of socialistic marketing economy,there is a growing demand for better quality of water supply and higher reliability of supply system. In addition ,considering the current common energy crisis, achieving the scheme of automatingthe water supply system. So it is an inevitable tendency to design and create an energy-savingconstant-pressure water supply system of excellent performance with the help of advancedtechniques of automation,monitor-control system; and communication. Meanwhile, the System can also adapt to various water Supply regions. This paper analyzes the structure of VF speed regulating constant-pressure water supply,and proposes several control methods.By careful study and comparison, PLC and inverter's method fits water supply system and datatransmission very well. Finally the paper shows the design of constant pressure supply water controller according to PID data and detailed introduction of its software and hardware.In this paper,the autho...
