| 基于PLC的锅炉加药自动控制系统 |
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| 引用本文： | 武军.基于PLC的锅炉加药自动控制系统[J].国外电子元器件,2008,16(12). |
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| 作者姓名： | 武军 |
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| 作者单位： | 西安铁路职业技术学院,陕西,西安,710014 |
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| 摘 要： | 针对各电厂给水加药大多采用人工调节,难以实现全自动化管理的情况,提出一种采用变增益三区段非线性PID,积分模糊控制(IFC)算法及上位机软件WinCC S7-200 PLC的组合方案,通过ProfiBus通讯方式,将其与在线pH仪,联胺表,电导率仪和液位传感器相结合构成的二级监控系统,实现了锅炉给水配药,加药全自动控制过程.该系统具有鲁棒性强,响应速度快和控制精度高的特点,尤其能克服pH值中和过程的较大时滞.
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| 关 键 词： | 控制器 变频器 自动控制 锅炉加药 可编程控制器 加药系统 |
Auto-control system of chemical sadding for boiler based on PLC |
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| WU Jun.Auto-control system of chemical sadding for boiler based on PLC[J].International Electronic Elements,2008,16(12). |
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| Authors: | WU Jun |
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| Abstract: | Aiming at realizing the automated management with difficulty,using the manual regulation in view of various pow-er plants to drug adding,an auto-control system of chemical adding for boiler based on PLC is propesed.The system uses gain three-sector misalignment PID,the integral fuzzy control(IFC) algorithm,and superior machine software WinCC+S7-200 PLC combination plan.Through the ProfiBus communication way,the online pH meter,hydrazine table,conductivity me-ter and the fluid position sensor are composing o... |
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| Keywords: | controller converter automatic/boiler chemicals adding programmable logic controller chemicals adding system |
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