The Computer Monitoring System Design For Lechangxia Water Control Project

The computer monitoring system of water control project for water control project automation monitoring features specifically designed,has a strong professional.collection,storage and processing of warning,real-time data through the operation of hydro mechanical and electrical equipment and hydraulic structures,and the like to monitor the regulation issued instructions,to ensure the normal operation in the range of parameters.In order to realize the monitoring object monitoring,protection and automatic control function.After the computer monitoring system is used in the water control project,the safety and reliability of the hub operation are enhanced,and the production efficiency is improved.In this paper,the monitoring system of Lechangxia water control project is taken as the research object,and the computer monitoring system of the hub is researched and designed according to the characteristics of the hub operation.(1)Discusses the significance of the computer monitoring system and the concept of water control monitoring the implementation of the system,analyzes the domestic and foreign research status of the monitoring system,put forward the hub "unattended unattended operation" of the design objectives and requirements.(2)Completed the overall scheme of the monitoring system,the local control layer,control layer and scheduling layer design and implementation.According to the actual situation of Lechangxia,the system adopts a distributed structure,divided into the local control layer,control layer and scheduling layer.The local control layer design including LCU function design,hardware configuration,software design and process design.The local control layer is arranged in a plurality of LCU underground powerhouse,the dam by 100/1000 Mbps,fiber redundant star Ethernet and fieldbus;the LCU with PLC controller as the core.The design of central control layer includes function design of data acquisition,analog processing,monitoring control and record report for central control layer.The central control layer adopts multi microcomputer structure,and the hardware configuration includes data server,power station,gate work station,GPS clock,network equipment and UPS uninterrupted power supply.Software configuration includes: operating system,monitoring system,database software and so on.The design of dispatching layer includes function design of remote communication,telemetry and remote control.The hardware configuration includes telecontrol workstation,automatic voltage control(AVC)and automatic generation control(AGC).(3)The unit power Lechangxia water control project in the operation process of mutation,unit regulating vane spindle unit failure and sealing water interruption stop fault examples,further explains the monitoring system in the hub of the safe and reliable operation and prediction play an important role in early warning and accident analysis.At the same time,it also finds that the system has improved space in the design of automatic control process.