1. System overview

Water conservancy is the pillar industry of China’s national economy, and pumping stations are an important part of water conservancy projects. They play an irreplaceable role in solving the current three major water resources problems of floods, droughts, water shortages, and deterioration of the water environment. The important tasks of natural flood control, flood control, irrigation, water transfer and water supply play a very important role in the sustainable development of our national economy and the construction of a well-off society in an all-round way. The pumping station is also the only artificial power source for water to provide potential energy for water to solve the problems of irrigation, water supply and water resource allocation under the condition of no gravity flow. It is to solve flood disasters, drought and water shortage, industrial and agricultural production water and urban and rural residents' domestic water. Important engineering measures are concrete manifestations of "ecological water conservancy", "environmental water conservancy", "resource water conservancy", "modern water conservancy" and "sustainable water conservancy".

Construction of the monitoring system of the pump station centralized control center:

2. Key points of the plan

Three, system architecture

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

Four, system function

1. High-performance data acquisition and high-reliability equipment control provide guarantee for the safe and stable operation of the pumping station

In the SCADA system of large-scale water conservancy pumping stations, there are extremely high requirements for the accuracy of real-time data and alarm information collection and the reliability of remote operation, because whether it is real-time data interruption or operation commands cannot be accurately issued, there are It may affect the work of the entire system, and may cause serious accidents. The lighter may cause equipment damage, and the severer may cause personal safety accidents. In order to ensure the reliability of system acquisition and control, the SCADA operator station dual-computer hot standby and dual-network redundant configuration are adopted.

In the SCADA operator station configured with dual-computer redundancy, the data acquisition software KingIOServer and the monitoring software KingSCADA operate independently of each other. The industrial database and the upper management unit directly obtain data from the KingIOServer without interference with the monitoring system. At the same time, KingIOServer has a data cache function. When the communication with the industrial library or the upper network is abnormal, KingIOServer will cache the historical data, and then send the data after the communication is restored to ensure the integrity of the data.

2. The system provides vivid images and simulated animations, combined with video images and GIS systems, the equipment is easy to operate, and the alarm curve query is flexible and convenient.

a) The system has powerful graphic development tools to produce three-dimensional display effects and restore the on-site environment.

b) Support online and offline maps, and can embed video surveillance information.

c) The system monitors system abnormalities in real time, automatically records alarms and event data, and reminds them through sound and light alarms and email alarms. When configured for voice broadcast, the alarm content, alarm object, current real-time status, etc., are broadcast in standard Mandarin.

d) View the trend of data changes in real time, superimpose and compare the data.

3. Data analysis and application based on industrial database to realize pump station automation and informatization The system realizes the recording and storage of information such as water conservancy and water regime information, pumps of the whole station, electrical systems, public oil, water, and gas systems, gate control systems, excitation systems and DC system equipment operation.

Automatically generate various duty reports, operation logs, and day, month and year production reports through report templates or free-style reports.

Through the analysis and statistics of a large number of historical data in the industrial database, combined with past experience and analysis results, the optimized scheduling plan for the operation and management of the pumping station is summarized, and an accident warning mechanism is provided to prevent problems before they occur. Provide guarantee for more reliable and economic operation of pumping station.