| PLC在变频恒压供水系统的应用 |
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| 引用本文： | 莫慧芳.PLC在变频恒压供水系统的应用[J].变频器世界,2007(5):80-82. |
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| 作者姓名： | 莫慧芳 |
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| 作者单位： | 广州科技贸易职业学院 |
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| 摘 要： | 本文介绍了采用PLC控制的变频调速供水系统，由PLC进行逻辑控制，由变频器进行压办凋节。变频器、可编程控制器作为系统控制的核心部件，经变频器内部PID运算，通过PLC控制变频与工频切换，实现闭环自动调节恒压变量供水。运行结果表明，该系统具有压力稳定，结构简单，工作可靠等特点。
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| 关 键 词： | PLC 变频器 供水系统 |
| 文章编号： | 1561-0330（2007）05-0080-03 |
The Application of PLC in Constant Pressure Water Supply System by Inverter |
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| Mo Huifang.The Application of PLC in Constant Pressure Water Supply System by Inverter[J].THE WORLD OF INVERTERS,2007(5):80-82. |
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| Authors: | Mo Huifang |
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| Abstract: | In this paper,the control principle of VVVF providing-water system is introduced,we use PLC to carry on logic control and use inverter to modulate pressure.Through PID control principle in inverter,we realize Closed-loop control in VVVF Providing-water System.The result indicates that the system has the stable pressure,simple structure,and reliable work. |
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| Keywords: | PLC Inverter Water Supply system |
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