畢業(yè)設(shè)計(jì)- 恒壓供水系統(tǒng)的plc控制與遠(yuǎn)程監(jiān)控

1、三 江 學(xué) 院本科畢業(yè)設(shè)計(jì)（論文）題 目 恒壓供水系統(tǒng)的 PLC 控制與遠(yuǎn)程監(jiān)控 電氣及自動(dòng)化工程學(xué) 院（系） 自動(dòng)化 專業(yè)學(xué) 號(hào) Z06072040 學(xué)生姓名 指導(dǎo)教師 起訖日期 2010.2.23-5.

2、28 設(shè)計(jì)地點(diǎn) L407 AbstractWith the rapid development of social economy, it demands the better of water supply' s quality and reliability of water supply system. Mean

3、while energy resources are seriously lack. So it is inevitable tendency to design water supply system which has high function and saves on energy well, with help of advanced technique of automation, contro

4、l and communication. At the same time this system can adapt different water supply fields.It is very important of the Water Supply System in Constant Pressure for the water supply in industrial and citizen existence. It

5、is consist of the variable frequency and speed regulation, PLC, PID control system for the control system. It controls the outcome of the pumps. The generator pumps are consist of parallel three pumps, and the power come

6、 from variable frequency and speed regulation or power grid. According to the water supply of constant pressure’s outcome water press and flux, the control system control the variable frequency and speed regulation, para

7、llel pumps’ speed and cut over, cause the system move in the best rational situation, assure according to wants supply water. This design has many merits such as save energy.In this paper, the control principle of VVVF p

8、roviding-water system is introduced. PLC is used to carry on logic control and inverter to modulate pressure．Through PID control principle. We realize Closed-loop control in VVVF Providing-water System. The result indica