Analysis on the requirements of private exchange in power industry
2020/2/1 17:50:41
Automation and industrial communication are widely used in the power industry. In the process of power generation, transmission, transformation and distribution in hydropower, thermal power, wind power, nuclear power and thermal power industries, all-round data collection and monitoring are needed, with large data flow. The power industry requires high reliability and real-time of automation and control communication. The working environment of the equipment in the power industry is very bad, sometimes it needs to be placed in the outdoor cabinet, and the electromagnetic interference is very serious. Real time, reliable and anti harsh industrial Ethernet has become a reliable solution for power industry networking and control communication.
Because of its unique characteristics, industrial switch has been widely used in modern communication industry, especially in the harsh industrial environment, which is in favor of industrial switch with excellent performance. Industrial switch is widely used in intelligent transportation, security monitoring, wind power photovoltaic, coal mine and other fields. Especially, electric power, transportation and metallurgy are called three potential industries of industrial switch application. Today we will talk about how to apply industrial switch to electric power industry.
When industrial switch is applied in power industry, it will be applied in three fields, including thermal power plant, wind power generation and power grid construction.
In large-scale thermal power plants, with the increase of power equipment and the complexity of automation process, the requirements for data acquisition and monitoring of auxiliary control equipment are increasingly strict. The auxiliary production workshops of large-scale thermal power plants are composed of water network, coal network and ash network, each network can be an independent system, and each control point is relatively scattered, such as the treatment of water, coal and ash in power plants 。 For these production networks, redundant network communication with multiple switches is required for the main control room, engineer station, protection system, excitation system, dispatching system and other parts.
In the wind power generation system, SCADA monitoring system, video security system and remote monitoring system of wind turbine generator set are in bad environment, and the communication guarantee is realized by industrial switch.
For example, the central centralized control part and the communication part are generally divided into the internal control communication part of the fan, the network communication part between the fan and the fan or between the fan and the control center according to different fan networks. The internal communication of the fan mainly refers to the communication between the fan cabin and the tower base. The fiber-optic ring network is used to form a 100m redundant ring network of nearby fans. Each redundant ring network is connected to the local control center, which is connected to the remote monitoring center. The fiber-optic connection is generally used for the wind power communication. Therefore, the wind power industry has a great demand for industrial switches, and each fan needs to be connected According to the known national plan, the market demand for industrial switches will double in the next few years.
What we know is that both thermal power plants and wind power generation are located in places with large temperature difference between day and night, windy sand and bad environment
(1) Good quality, excellent material, strong lightning resistance, moisture-proof and electromagnetic resistance; stable operation without fan in the environment temperature of - 40 ℃ ~ 85 ℃, suitable for the application in the harsh environment of the power industry
(2) HT ® self-healing ring network technology provides fast self-healing protection and high reliable communication guarantee
(3) With htpass ® optical path power-off protection function, meet the power networking application with high reliability requirements
(4) HT series industrial Ethernet switch supports non blocking switching, provides the most stable line speed transmission performance, and meets the requirements of high flow and real-time
(5) Dual power supply redundancy design, support wider power input range, ensure power supply safety
(6) Reliable optical fiber transmission, complex networking characteristics, meeting the needs of a wide range of communication coverage
(7) Interface friendly network management interface and powerful management function
Hotcom industrial switch is also called industrial Ethernet switch, that is, the Ethernet switch equipment applied in the field of industrial control. Because of the adopted network standard, which has good openness, wide application, low price and transparent and unified TCP / IP protocol, Ethernet has become the main communication standard in the field of industrial control. Industrial Ethernet solves the technical problems of real-time communication, network security, intrinsic safety and explosion-proof technology, and adopts some measures suitable for industrial environment, such as waterproof, anti vibration... Its core is no essential difference from commercial Ethernet, which is the same as the difference between PC and industrial computer.
With the continuous development of the power industry, more and more demanding demands will be put forward for the industrial switch. Therefore, technological innovation is very important. Based on the existing products, continuous optimization of their own products can meet the trend of the development of the times. Hongteng photoelectric has its own R & D and design and production team, constantly optimizing the quality of industrial switch, polishing its own technology, treating each product with a strict attitude, striving to be perfect, and making the quality of industrial switch to a higher level.
