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Study on Local Control Unit of Hydropower Station Based on PLC

Author: LiuYanMei
Tutor: OuYangBinLin
School: Northeast Agricultural University
Course: Agricultural Electrification and Automation
Keywords: Local Control Unit PLC MB Monitoring system
CLC: TV736
Type: Master's thesis
Year: 2008
Downloads: 333
Quote: 3
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Abstract


Hydroelectric power system Station integrated automation , a prerequisite for achieving hydropower station unmanned ( less duty) . With the rapid development of computer technology and electronic technology , and become more sophisticated, state-of-the-art performance , reliable operation of the power station monitoring system has been widely used. Local Control Unit is the foundation and core of the hydropower station computer monitoring system , and its performance has a direct impact on the working conditions of the entire computer monitoring system . Lianhua Hydropower Station , the subject for the study, made ??a presentation to the local control unit of hydropower . The paper analyzes the process of the development of China 's hydropower automation technology . Summary describes the overall design of the system , described in detail to the control unit of the temperature measurement unit , speed control unit, communication unit , UNITYPRO and use the programming software for the program design . System uses mature technology Schneider series PLC as controller , 8-channel temperature acquisition module temperature amount collected through remote communication sent to the unit PLC , this method 1s temperature acquisition is completed , the temperature acquisition time is shortened . The unit uses a 100Mbps Fast Ethernet to communicate with the host computer , and connected by MB network with existing ground unit PLC , the network transfer speed has been improved . The system uses touch screen as now control unit man-machine interface , and a variety of screen configuration is done according to the function you want to achieve , including the crew off on the control interface , temperature monitoring interface , fault light plate screen . The current transformation of the control system has been successfully put into operation , the actual run results show that the system can meet the actual requirements of the application , to achieve the desired goal . The superior performance of the system and bring great economic benefits to the power station , laid a solid foundation for Lotus hydropower station unattended , in the true sense of the few people on duty .

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CLC: > Industrial Technology > Hydraulic Engineering > Hydropower utilization of hydropower project > Hydropower station construction and equipment > Automation, and much automation
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