基于Modbus污水处理变频供水控制系统的设计  

Design of Frequency Conversion Water Supply Control System of Sewage Disposal Based on Modbus

作　　者：张辉[1] 李树君[1] 温琦[1] 王志[1] 刘艳阳[1] 

机构地区：[1]中国农业机械化科学研究院,北京100083

出　　处：《电气传动》2010年第12期57-60,共4页Electric Drive

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.

关 键 词：MODBUS 组态软件 变频供水 污水处理 

分 类 号：TH137.51[机械工程—机械制造及自动化]