摘要
通过对现有供水系统的调研和分析,设计了一种基于Modbus通信的变频恒压供水系统。该系统能够根据管网压力信号自动调整泵的运行状态,实现无级流量调整。同时由于设计了PID控制程序,水泵可以自动启停,自动控制运行频率,真正做到了用水和供水的动态平衡,有效地节约了能源。此外,在系统中还引入了组态软件对供水系统进行远程监控与管理,具有良好人机界面。现场运行的结果表明,本系统具有很好的可扩展性、灵活性和可靠性。
After survey and analysis of recent water supply system,the frequency conversion constant pressure water supply system with Modbus communication was designed.The system adopts frequency conversion speed regulating measure to adjust rotating speed of the motors of water pumps,and to keep continuous flow adjustment.Moreover,PID algorithm is introduced to realize variable speed control and ensure dynamic balance between water supply and water consumption,which has saved energy effectively.Furthermore,configuration software is applied for remote surveillance and remote control.The result of practical operation on site shows that the system features have excellent expandability,flexibility and dependability.
出处
《电气传动》
北大核心
2010年第12期57-60,共4页
Electric Drive
关键词
MODBUS
组态软件
变频供水
污水处理
Modbus
configuration software
frequency-conversion water supply
sewage disposal
