How much does the SCADA system know?
The SCADA system is a computer-based production process control and dispatch automation system. It monitors and controls the operating equipment on site.
Due to the different requirements of SCADA in various application areas, the development of SCADA systems in different application areas is not exactly the same.
SCADA systems are the most widely used in power systems and the most technologically advanced. As one of the most important subsystems of the energy management system (EMS system), it has the advantages of complete information, improved efficiency, correct control of system operation status, accelerated decision-making, and can help to quickly diagnose system fault status. Missing tools. It plays an irreplaceable role in improving the reliability, safety and economic benefits of power grid operation, reducing the burden on dispatchers, realizing automation and modernization of power dispatching, and improving the efficiency and level of dispatching.
SCADA has been applied to the railway electrification telecontrol system earlier, which plays a great role in ensuring the safe and reliable power supply of the electrified railway and improving the dispatching management level of the railway transportation. In the development of railway electrified SCADA system, with the development of computer, there are different products in different periods. At the same time, China has also introduced a large number of SCADA products and equipment from abroad, which have driven the railway electrification telecontrol system to a higher level. Goal development.
The SCADA system is constantly improving and constantly developing, and its technological progress has not stopped for a moment. Nowadays, with the increasing demand for SCADA systems in power systems and railway electrification systems and the development of computer technology, new requirements are put forward for SCADA systems. In summary, there are the following points:
1. Wide integration of SCADA/EMS systems with other systems
The SCADA system is a real-time data source for power system automation, providing a large amount of real-time data for EMS systems. At the same time, in the simulation training system, MIS system and other systems need to use the real-time data of the grid, without the real-time data information of the grid, all other systems become "passive water." Therefore, how the SCADA system is connected with other non-real-time systems has become an important topic in SCADA research; the existing SCADA system has successfully realized the connection with DTS (Dispatcher Simulation Training System) and enterprise MIS system. The integration of SCADA system with electric energy metering system, geographic information system, water dispatching automation system, dispatching production automation system and office automation system has become a development direction of SCADA system.
2. Integrated automation of substation
Taking the RTU and the microcomputer protection device as the core, the control, signal, measurement, billing and other circuits of the substation are incorporated into the computer system, replacing the traditional control protection screen, which can reduce the floor space and equipment investment of the substation, and improve the second The reliability of the secondary system. The comprehensive automation of substations has become a research topic in related fields. Companies such as China Eastern Electronics have launched corresponding products, but they are still in the research stage in railway electrification.
3. Research and application of new technologies such as expert systems, fuzzy decision making, and neural networks.
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