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Wintop’s industrial switches and optical transceiver product lines cover every stage from substations to distribution networks. Designed for wide-temperature operation, they deliver high reliability and stable performance. We tailor solutions to your needs to help you meet the toughest environmental challenges.

Thermal Power Generation Industrial Ethernet Switch Solution

Time：2025-06-19 Views：343

1. Industry Background Analysis

Thermal power generation uses the energy contained in fossil fuels such as coal, oil, and natural gas. According to the power generation method, thermal power generation is divided into coal-fired steam turbine power generation, oil-fired steam turbine power generation, gas-steam combined cycle power generation, and internal combustion engine power generation. Thermal power generation is currently the main force in power development. In thermal power plants, it is usually necessary to perform cluster monitoring of thermal power generators, requiring the construction of a stable, reliable, and fast real-time network system. Network equipment must be stable and reliable, with fast fault recovery capabilities. Moreover, they must adapt to the harsh environment of the power plant, withstand continuous severe vibrations inside the generator, and large temperature fluctuations in the plant. Although some nuclear power units already exist in China, thermal power still occupies the majority of the electricity market. In recent years, power development has lagged behind economic development, and many thermal power plants have been built nationwide. However, thermal power technology must be continuously improved and developed to meet the requirements of a harmonious society. Wintop from Shenzhen City provides you with a perfect solution.

2. System Requirements

Wintop Industrial Ethernet Switch meets the environmental conditions of thermal power plants:

Ø Harsh on-site environment

Severe temperature, high-density dust, strong electromagnetic interference

Ø Requires system stability, reliability, timeliness; smooth communication with zero packet loss and no delay

Ø Network architecture assurance

Fiber optic ring network, ring network coupling, self-healing time less than 20ms, graphical network management software

Ø Equipment self-assurance

Operating temperature -40 to 80℃, protection level IP40, electromagnetic compatibility level 4 testing

3. Requirements for Industrial Ethernet Switches in Thermal Power Plants

l Thermal power plant system equipment must withstand high temperatures, high voltage, large currents, lightning strikes, and other interferences. Designed according to industrial anti-corrosion standards, required operating temperature: -40 to 85℃, storage temperature: -40 to 85℃, storage humidity: 0% to 95%, non-condensing.

l Thermal power unit control systems have harsh electromagnetic environments, requiring industrial switches to have strong electromagnetic interference resistance, high-temperature tolerance, and long mean time between failures.

l To ensure communication reliability, a redundant ring network is required with a short self-healing time. When the communication network fails, it can seamlessly switch to the redundant backup path.

l To ensure the security of remote monitoring data, switches need comprehensive network security settings.

4. Thermal Power Plant Network Architecture Analysis

4.1 Plant-level Management Information System

MIS (Management Information System) is the plant-level management information system, mainly providing information services for enterprise management throughout the plant. Its main functions include office automation, file services, information publishing, financial management, material management, equipment management, ERP, etc. The main characteristic is a large amount of information flow, low real-time requirements for information, and low requirements for network device reliability and system availability. Network structures are mostly star or tree topology, usually without redundancy requirements. Network equipment typically uses commercial-grade devices. The information center uses core switching equipment, additionally equipped with dedicated routers and firewalls connecting to the wide area network. The lower-level nodes use desktop switches. Dedicated equipment rooms usually house the switches. The MIS system is managed by the plant information center, responsible for planning, implementation, operation, and maintenance.

4.2 Plant-level Real-time Information System

SIS (Supervisor Information System) is the plant-level real-time information system. Its main function is to organize and process real-time information in the production process to realize sharing of production real-time information and management information, providing support for production operation management decisions and improving the comprehensive economic benefits of the power plant. It mainly achieves real-time monitoring of production processes, unit performance and economic indicator analysis, and unit optimization operation functions. The SIS system is realized mainly through networks, real-time databases, and other technologies to collect and organize production site data. The main collected information includes production operation information from the main system (collected from DCS system), real-time information from auxiliary systems (mainly from auxiliary control systems), and other system information.

4.3 Distributed Control System

DCS (Distributed Control System) is the distributed control system. Its main function is to monitor and control the running conditions of the main equipment of the power plant (boiler, turbine, generator) in real time. Functions generally include DEH (Turbine Electro-Hydraulic Control System), DAS (Data Acquisition System), MEH (Feedwater Pump Control System), SCS (Sequential Control System), BMS (Boiler Burner Management System), MCS (Analog Control System), FSSS (Furnace Combustion Safety Monitoring System), etc.

4.4 Auxiliary Control System

The auxiliary control system mainly monitors and controls some auxiliary equipment in the production process of the power plant, such as water treatment equipment, ash removal equipment, electrostatic precipitators, coal conveying equipment, etc. Different plant leaders and technical staff have different understandings of control, resulting in large differences in auxiliary control systems. Some plants require high automation and fewer on-site operators, thus investing heavily in auxiliary control systems, and correspondingly, the network system is large; some plants have low automation requirements, and auxiliary control systems may only include some simple main systems (such as water treatment, coal conveying).

5. Wintop DCS System Solution

Solution Introduction:

This solution uses a multi-ring coupling network structure. On-site each boiler uses the RS608-2F6T industrial Ethernet switch to form a single ring, which is coupled with the monitoring center’s ring to create a multi-ring coupled topology. The network features real-time data collection, scalability, high reliability, high bandwidth, high-quality network signal transmission, and redundancy backup. This network topology not only provides redundancy at each boiler site but also establishes redundancy for communication with the monitoring center. Furthermore, since each boiler is separately linked to the monitoring center using a coupled ring, this ensures that monitoring between boilers does not interfere with each other. The on-site controllers achieve redundancy backup through single rings; the monitoring center also uses redundant dual backups; thus, the entire network has high redundancy, and the network stability is especially high.

Solution Features

1. Adopts multi-ring coupled topology to ensure high network reliability;

2. Constructs multiple sub-rings on-site to enhance system stability;

3. Line-speed switching and QoS technology ensure network real-time performance.

Switches use industrial grade-4 design, strong electromagnetic interference resistance, IP40 protection level, operating temperature -40 to 75℃, ring network self-healing time less than 20ms, five-year warranty, ensuring real-time, stable, reliable, and delay-free data transmission in thermal power plants.

6. Product Features: