In the era of Industry 4.0, intelligence has become an important factor in measuring the level of urban development. Building a smart city is a common goal of future urban development. With the rapid development of the world economy and science and technology, the demand for clean, efficient, economical and safe electric energy in cities is increasing. Therefore, in many construction projects in smart cities, smart grid has also become one of the key projects.
With the rapid advancement of China's strong smart grid construction, smart grids have played an important role in ensuring urban power security, promoting urban green development, improving urban network communication capabilities, stimulating urban-related industry development, and enriching urban service connotation. A huge boost. Smart grid has become an important foundation and driving force for the development of smart cities in China.
The smart grid is based on a stable grid framework. Through communication network technology and computer information technology, intelligent monitoring of power generation, transmission, substation, power distribution, power consumption and dispatching of power systems is realized to realize power and information. Highly integrated business. Smart grid not only means intelligent control, but also intelligent processing and management of grid operation information. Intelligent control can only be achieved if information management is truly implemented. In the construction and operation of the smart grid, the characteristics of observable, controllable, adaptive and self-healing are inseparable from the support and guarantee provided by information and communication technology. As one of the core technologies that smart grids should have in the new era, information and communication technology can be said to be the most critical factor in determining the operation and development speed of the entire smart grid.
In the process of building a smart grid, most substation equipment and generators, cables, lines, etc. have online monitoring projects. Online monitoring of electricity is an indispensable part of the smart grid. However, due to the distributed and real-time characteristics of the power system, various monitoring and control devices have certain delays, path uncertainties and loss of data packet information in terms of information acquisition.
With the development of industrial Ethernet technology, optical fiber technology, information processing technology, and penetration into the power field, under the background of current technical conditions, industrial Ethernet communication has shown high reliability during operation. A variety of application advantages, such as high flexibility, high maintenance and high scalability, have made important breakthroughs in optimizing the connection and information transmission of various equipment components of the entire power grid system.
As the most important grid communication equipment solution, IE switches enable the rapid development of online monitoring technology for power equipment and gradually move toward practical use.
At present, the standardization of industrial switch protocols has been completed, including the underlying protocols, network redundancy protocols, management protocols, network accurate clock transmission protocols, etc. The interoperability of products from different vendors is good, and hybrid networking can also be realized. Fanless, low-power industrial standard design, the working range of -40 ° C ~ 85 ° C can fully meet the needs of industrial sites, to meet the power system construction. At the same time, industrial Ethernet switches mainly adopt hybrid networking methods such as segmentation redundancy, intersecting ring and phase-cutting ring, which improves the reliability of networking, flexible configuration of multiple optical ports, high integration, and integrated system design. Construction has provided convenience. Industrial Ethernet switches play a huge role in data collection, production management, operation and maintenance, security monitoring, metering, and user interaction.
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