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| Design the Constant Pressure Water Supply System by Frequency Control |
| HU Chi-bing, SANG Rui-peng |
| School of Electronic Engineer, Lanzhou University of Technology Lanzhou 730050, China |
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Abstract The structure and work principle of isobarically water supply system based on PC frequency control is introduced. This system can automatically adjust water pump motor’s rotation speed to keep water supply pressure constant and reduce power loss. In allusion to specific method of using MSComm6.0 function carries out between PC and SIMATIC S7-300 PLC serial communication at pumping station’s scout system and gives a method of communication program by VC++. It keeps water supply pipe network constant pressure and makes water supply system keep in a perfect state for energy saving.
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Received: 08 August 2013
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| [1] Victor Shtern.C++精髓[M].北京:机械工业出版社,2002[2] SIMATIC.S7-200中文说明[M].SIENENS,1999[3] 石东海,扈啸,等.单片机数据通信技术从入门到精通[M].西安:西安电子科技大学出版社,2002[4] 李现勇.Visual C++串口通信技术与工程实践[M].北京:人民邮电出版社,2002[5] 杨东海,翁新华,等.基于VC++和MFC的上位机与PLC的通讯系统[J].微计算机信息,2003(3)[6] 李东晓,李晓明.PC与PLC实时通信的Visual C++6.0实现[J].计算机应用研究,2002(1)[7] 赵勇,陈启卷.PLC及变频调速技术在泵站恒压供水中的应用[J].工业仪表与自动化装置,2004(4) |
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