Description
What is scada system
- SCADA control system, namely Supervisory Control and Data Acquisition system, is a computer-centered automatic system. It features four remote functions: remote measuring, remote signaling, remote control and remote regulating, enabling real-time data acquisition, remote monitoring and intelligent control of field equipment in substations and power grids, and acting as the nerve center of power dispatching.
Overview of scada monitoring system
- Various types such as SCADA systems, SCADA control systems, RTU SCADA systems and SCADA system software constitute complete power monitoring solutions.
- They collect real-time key data including current, voltage and power through sensors and Remote Terminal Units installed on all kinds of power equipment, and send all data to the monitoring center.
- The professional SCADA software processes and analyzes the collected data, and displays results in graphs and reports, helping operation and maintenance staff quickly know the operating conditions of the power system.
Scada system diagram
Main Functions of scada control system
Real-time Data Collection
- The SCADA system collects operational data of power equipment in real time and accurately, providing reliable basis for subsequent monitoring and decision-making.
Monitoring and Alarm
- It boasts powerful monitoring performance to promptly detect equipment faults and abnormalities, and alerts operation and maintenance personnel via sound-light alarms, SMS notifications and other methods.
Remote Control and Operation
Data Analysis and Statistics
- Built-in powerful data analysis functions conduct in-depth data mining and generate various reports and charts, supporting power dispatching optimization and power supply quality improvement.
Scalability and Compatibility
- The SCADA power monitoring system features excellent scalability and compatibility, enabling seamless integration with other power automation systems for information sharing and coordinated operation.
Application Scenarios
- The SCADA power monitoring system is widely applied in power plants, substations, transmission networks, distribution networks and other power sectors.
- In power plants, it enables real-time monitoring of generators, boilers and other equipment.
- In substations, it monitors the operating status of transformers, circuit breakers and other devices.
- For transmission and distribution networks, it keeps track of core indicators such as line load and voltage quality.
Scada system solutions
SCADA System Solutions for Substations
| Hierarchy |
Composition |
Core Equipment |
Functions |
| Station Control Management Layer |
SCADA Master Station System |
Industrial server, operator workstation, engineer workstation, large display screen |
Data processing, graphic display, remote operation, report management |
| Network Communication Layer |
Communication Network |
Fiber Ethernet switch, protocol converter, vertical encryption device |
Data transmission up and down; support protocols including IEC 60870-5-104/101, IEC 61850, Modbus TCP/RTU, DNP3 |
| Field Equipment Layer |
Intelligent Terminals |
Microcomputer protection device, intelligent measurement & control unit, RTU/FTU, power meter, video monitoring device, temperature & humidity sensor |
On-site data collection, local control and data uploading |
Composition of Hydropower Station SCADA Background System
| Hierarchy |
Components |
| Station Control Management Layer |
Hydropower station SCADA master station system, data server, operator workstation, engineer workstation, dispatching communication workstation, monitoring large screen, audible and visual alarm device, report printing equipment |
| Network Communication Layer |
Industrial Ethernet switch, optical fiber communication equipment, communication management unit, protocol converter, vertical encryption device, network security isolation equipment, time synchronization device |
| Local Control Layer |
Unit LCU local control unit, common LCU, switch station LCU, gate control unit, microcomputer governor, excitation device, intelligent measurement and control device, power meter, water level/flow/pressure sensor, temperature and vibration monitoring equipment |
| Auxiliary Monitoring System |
Video security monitoring system, hydraulic environment monitoring system, station power monitoring system, DC panel & UPS power supply system, fire alarm monitoring system |
| Dispatching Connection Part |
Power dispatching data network interface, remote communication device, AGC/AVC automatic regulation module, superior dispatching data interaction terminal |
| Hierarchy |
Composition |
| Station Control Management Layer |
Waste heat power generation SCADA master station system, data server, operator workstation, engineer workstation, dispatching workstation, large monitoring screen, audible and visual alarm, report statistics and printing equipment |
| Network Communication Layer |
Industrial Ethernet switch, communication management unit, protocol converter, vertical encryption device, network isolation device, Beidou/GPS time synchronization equipment |
| Field Measurement & Control Layer |
Waste heat boiler measurement and control unit, turbine generator set LCU, waste heat flue gas acquisition terminal, temperature pressure flow sensor, electric quantity acquisition device, relay protection device, variable frequency speed controller |
| Auxiliary Control System |
Circulating water monitoring system, flue gas environmental protection monitoring system, plant power monitoring system, UPS uninterruptible power supply, fire alarm system |
| Dispatching Connection Layer |
Remote communication device, dispatching data network interface, AGC active power regulation module, data uploading interactive terminal |
| Hierarchy |
Components |
| Station Control Management Layer |
Pumping station SCADA master station system, data server, operator workstation, engineer workstation, dispatching workstation, large monitoring screen, audible and visual alarm device, report printing equipment |
| Network Communication Layer |
Industrial Ethernet switch, communication management unit, protocol converter, network security isolation device, Beidou/GPS time synchronization device |
| Field Measurement & Control Layer |
Pumping station LCU local control unit, water pump unit measurement and control device, gate opening and closing control unit, liquid level/pressure/flow sensor, current and voltage acquisition meter, motor protection device, frequency conversion control equipment |
| Auxiliary Monitoring System |
Pumping room environment monitoring system, drainage and sewage monitoring, auxiliary power monitoring, UPS power supply system, security and fire alarm system |
| Dispatching Connection Layer |
Remote communication device, dispatching data interface, water volume dispatching linkage module, data uploading terminal |
| Hierarchy |
Components |
| Station Control Management Layer |
PV station SCADA master station system, data server, operator workstation, engineer workstation, centralized monitoring screen, audible and visual alarm device, data report management equipment |
| Network Communication Layer |
Industrial Ethernet switch, communication gateway, protocol converter, network safety isolation device, Beidou/GPS timing device |
| Field Measurement & Control Layer |
Photovoltaic combiner box monitoring unit, inverter data acquisition terminal, box-type substation monitoring device, meteorological environment sensor, power quality monitoring instrument, relay protection device |
| Auxiliary Monitoring System |
Smart environmental monitoring system, station power monitoring system, UPS uninterruptible power supply, video monitoring and fire alarm system |
| Dispatching Connection Layer |
Remote communication terminal, power dispatching data network interface, AGC/AVC automatic power regulation module, grid-connected data interaction device |
| Hierarchy |
Components |
| Station Control Management Layer |
Distribution station SCADA master station system, data server, operator workstation, engineer workstation, monitoring large screen, sound and light alarm, report printing equipment |
| Network Communication Layer |
Industrial Ethernet switch, communication management machine, protocol converter, network isolation device, Beidou/GPS time synchronization equipment |
| Field Measurement & Control Layer |
Distribution network measurement and control unit, feeder terminal FTU, distribution terminal DTU, power parameter instrument, switch status collector, distribution relay protection device |
| Auxiliary Monitoring System |
Station environment monitoring system, auxiliary power monitoring system, UPS power supply, video monitoring and fire alarm system |
| Dispatching Connection Layer |
Remote communication device, power dispatching interface, distribution network data transmission terminal, power load monitoring module |
FAQ
Q：scada vs dcs system
A:SCADA focuses on long-distance remote monitoring and power grid dispatching, while DCS is dedicated to precise local process control of plant units.
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