Application of SCADA software in large pump statio

2022-08-24
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Application of force control SCADA software in large pump station monitoring system

Abstract: the domestic advanced monitoring configuration software force control SCADA software eforcecon and real-time database pspace are used to establish a data platform, and the large pump station monitoring system is constructed by using information technologies such as automatic control, network communication, computer and GIS, so as to realize the intelligent operation of large pump station facilities and improve the timeliness and accuracy of pump gate scheduling

key words: Pump Station Monitoring GIS system force control eforcecon SCADA software real-time database pspace

1 Overview

the pump station is the main facility of the water conservancy project. The pump station facilities play a key role in urban flood control and drainage and rural water diversion and irrigation. With the rapid development of China's economic construction, higher requirements are put forward for water conservancy facilities and water environment. Urban flood control and drainage, urban water environment, deep-water well groups and drainage facilities are facing the requirements of using modern information technology to further improve the facilities. Realizing automatic monitoring and centralized dispatching management of pumping stations such as drainage, well groups, tide blocking, waterlogging drainage and water diversion, and collecting all kinds of hydrological and engineering data in real time are the basis of information construction. At present, most pump stations still adopt traditional management and operation methods, mainly manual, and urban drainage pump stations also need to further improve the level of automation facilities

the automatic monitoring system of pump station is mainly applied to the automatic monitoring of pump stations of various water conservancy facilities. Including water supply pump station, drainage pump station, river flood control and drainage pump station, deep-water well group water intake pump station, etc

2. System structure

the automation system of the pump station is composed of a computer monitoring system, a video system, and a large screen method (5). It is composed of a coaxial television system, a geographic information system, and a network communication system to detect the coaxiality under the stress state. It mainly realizes the monitoring of the pump unit, sluice, power distribution system, inlet and outlet water tank, DC system, fire protection system, technical water supply system, hydraulic system, and other important parts and key objects of the operation of the pump station Parameters shall be effectively monitored and monitored, and necessary data, images and instructions shall be uploaded and received

the system adopts the distributed computer network system environment of client/browser/server/architecture. Advanced GIS, database, computer network, software engineering, information engineering, multimedia, web technology will be used in the design and development process, so that the system platform has the outstanding characteristics of "practical, advanced, real-time, reliable, open, standardized, friendly interface and easy expansion"

the system can be divided into four levels. The first level is the field control level, which mainly includes field hardware PLC, instruments and other equipment; The second layer is SCADA monitoring layer, including SCADA engineer station and operator station in central control room; The third layer is the data storage layer, which mainly includes the industrial history database server; The fourth layer is the data application layer, which mainly includes scheduling analysis platform, web publishing server, large screen display system, etc

3. System function

3.1 function overview

realize high-performance data acquisition and monitoring of the huge field data of the pump station through SCADA software, with real-time water regime (based on the data of the hydrological water quality monitoring system of the hydrological master station), rain regime (the nearest rainfall observation station, loading the rainfall runoff model for calculation) Engineering conditions (gate, water pump, motor and power supply information provided by the automatic monitoring system of sluice and pump station) are the main basis for decision-making, and other system information (such as drainage information system, geographic information system of water resources census, geographic information system of inland river flood control wall and vertical and horizontal section of river course, etc.) is integrated with the latest or predicted meteorological information, Under the action of the expert system, the simulation results under different operation controls are generated to determine the best flood control and water diversion scheme, which is displayed in an intuitive web way; Combined with GIS and supplemented by three-dimensional spatial parameters such as water level, water quality, gate position, channel storage capacity, flow, diversion and drainage volume, height of flood control wall, depth of regional ponding, make full use of the data in the complete real-time database and alarm event database, and conveniently carry out analysis and statistics, accident analysis and recall based on the stored historical data, so as to realize the intelligent operation of large pump station facilities

Figure 2 system function architecture diagram

4 System features

progressiveness

high integration of the system: with the powerful graphic configuration function and system integration function of force control SCADA software, gorgeous and realistic dynamic real-time pictures, video images and GIS information can be highly integrated and displayed on the SCADA system, forming a monitoring mode of seamless integration of data simulation, video images and GIS system

powerful report function: various duty reports, operation reports, alarm reports and daily, monthly and annual reports can be easily generated through the stored historical data

convenient alarm output: support real-time alarm notification and output in multimedia voice, video, text voice conversion, email and SMS

historical recall (accident recall): by defining the conditions and variables of accident recall, as well as the settings of recall time, a recall indication is generated when the recall conditions are met, and the user can view the replay of the accident through the recall component. The playback process supports curves and tables, as well as printing and saving

security

strict permission management in operation. The system shall provide audit tracking function, record the first operation process of all users, and provide the basis and means for investigating the system security problems; The system shall have transaction log function. In order to ensure the safety and reliability of system acquisition and control, the scheme adopts double machine hot standby and double redundancy configuration of SCADA operator station

real time

collect water, engineering, rain and other information in real time, and store them in the business database. It has strong real-time and high processing efficiency, and the response time to access is short; The real-time performance of the acquisition interface is good, which can meet the needs of its application; The acquisition cycle of the acquisition interface is between 5 seconds and 5 minutes (which can be set as needed); The real-time performance of the acquisition interface cannot affect the performance of the production process control system

Figure 3 force control data acquisition system

Figure 4 force control real-time monitoring screen

practicality

the operation interface is simple and easy to understand; System maintenance is convenient and fast; The secondary development interface must be standardized; The recovery of catastrophic failure should be simple and reliable

fault tolerance, redundancy

acquisition interface realizes redundancy when conditions are met; The acquisition software should have a fault-tolerant processing mechanism; The real-time database system has fault-tolerant ability and realizes redundancy according to specific hardware conditions

scalability

establish an open, standard, expandable and easy to manage real-time database platform, organically combine all subsystems, and fully consider the growth space of future needs

5. It is concluded that the automatic monitoring system of

sluice is one of the important links to realize the informatization of water conservancy. The domestic advanced monitoring configuration software ForceControl software data platform is adopted, and the information technology such as automatic control, network communication, computer and GIS is used to build the informatization system of large-scale pump stations. The information basic platform and key informatization application system that can master the rain, engineering, water, soil moisture and disaster conditions are built, which realizes flood control The automatic centralized monitoring, operation and management of drought resistance, waterlogging drainage and tidal flushing of gully and river systems in the urban area, complete the local and remote control operation of all pump station equipment in the jurisdiction area The functions of "color acquisition real-time monitoring, fault alarm, operation process simulation display and local image monitoring" of main equipment parameters can effectively improve the reliability, safety, maintainability of pump station equipment and the automation level of control operation; it can monitor equipment parameters and operating conditions in real time, eliminate hidden dangers of equipment operation, ensure the intactness and adjustability of main equipment, reduce the labor intensity of operators, and achieve The operation pipe of "unattended and few people on duty" 6. The selection of excellent thickened steel plate for the fuselage is required to further improve the timeliness and accuracy of pump gate scheduling. Conform to the development trend of modernization of operation and management in China's water conservancy industry. (end)

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