全自动变频恒压供水控制系统设计

Total Automatic Water-supply System with Variable Frequency and Constant Pressure

设计一种全自动变频恒压供水自动控制系统,系统以PLC为控制核心,对当前水压信号与设定值比较后经PID运算,改变变频器输出频率来调节水泵机组供水量,最终达到管网压力恒定。仿真调试表明,该系统能对供水过程进行全自动控制并监测,供水系统工作在最佳运行状况,维护方便,稳定可靠。

A control system of automatic variable frequency constant pressure water supply is Designed,System with PLC as the control core,the current hydraulic signal after compared with the set value by the PID arithmetic,and to change water supply by the inverter control the frequency of water pump,eventually the pipe network pressure constant.Simulation debugging shows that the system can carry out automatic control and monitoring process of water supply.