In recent years, with the widespread use of the Internet and the rapid development of the Internet of Things, the global demand for IP addresses has increased significantly. In February 2011, after ICANN (International Internet Corporation for Assigned Names and Numbers) announced that 4.3 billion IPv4 addresses had been allocated worldwide, IPv6 with a huge address space has become the next generation Internet IP layer technology to meet demand. Let's take a look at the related content with the network communication Xiaobian.
IPv6 and smart gridIn recent years, with the widespread use of the Internet and the rapid development of the Internet of Things, the global demand for IP addresses has increased significantly. In February 2011, after ICANN (International Internet Corporation for Assigned Names and Numbers) announced that 4.3 billion IPv4 addresses had been allocated worldwide, IPv6 with a huge address space has become the next generation Internet IP layer technology to meet demand. In March 2012, the National Development and Reform Commission released the next generation Internet development and construction opinions, clarified the goals and plans for the development of the next generation Internet, officially launched the research and construction of the next generation Internet in China, and started IPv6 based in key industries such as oil and power. The scale demonstration application of the mobile internet.
State Grid Corporation actively responded to national policies and calls, and submitted to the National Development and Reform Commission the application for the next-generation Internet scale demonstration application project in key power industries, and actively carried out pilot network construction and multiple business application construction. This batch of projects is in line with the company's strong smart grid strategy, which will explore the road and provide experience for the deep integration of smart grids and next-generation Internet.
Supported by the information and communication platform, the smart grid seeks to build a sustainable and balanced development system that spans all aspects of power generation, transmission, substation, distribution, power and dispatch, and emphasizes power flow, information flow, and business flow. Highly integrated integration. The "informatization, automation, and interactive" characteristics of the smart grid have led to a growing demand for IPv6. First of all, with the continuous improvement of the degree of automation and informatization of the power grid, a huge demand for IP addresses has arisen. Secondly, the depth, fineness collection and analysis of information on the power generation and power consumption of the power grid and the data are widely interoperable, and information security and The quality of service puts forward extremely high requirements. Thirdly, the two-way interaction between power grid and power customers makes the power information communication network have to generate more and more information interaction with the public Internet. The IPv6 upgrade and transformation of the power information communication network is an inevitable choice.
Faced with the rapid development of the next generation Internet marked by IPv6 in China, the application of IPv6 technology in power grid operation has become the demand and trend of comprehensive construction of smart grid.
In the era of big data, smart grids require more extensive and detailed data collection and deeper data processing in the six major segments of power generation, transmission, substation, distribution, power and dispatch. Data collection will widely adopt IoT technology. The demand for IP addresses will increase rapidly with the use of a large number of RFID tags and sensors. Cloud computing will also play an important supporting role in the storage and processing of massive data. Due to the long distance and wide distribution of transmission lines owned and under construction in China, the intelligent construction of transmission lines will bring a large number of IP address requirements. With the widespread use of power clouds in systems such as grid production and marketing, the demand for IP addresses has also increased geometrically. The application of IPv6 in the smart grid can solve the problem of tight IP address resources, and ensure the transmission speed is faster and safer, and meet the demand for IP addresses of the Internet of Things "object interconnection" and cloud computing virtualization.
In the transmission link, through the deployment of various sensors, video equipment and other devices along the transmission line, online monitoring, fault location and automatic diagnosis of transmission lines are realized, providing informationized and digital shared data for line production management and operation and maintenance.
In the construction of intelligent substation, Ethernet technology will be widely used. With the continuous improvement of the intelligent level of substations, the demand for IP addresses of various types of equipment will also increase significantly. For example, in the substation, equipment conforming to IEC-61850 will have an IP address for maintenance and operation management. At the same time, in order to support the substation informationized inspection, it is necessary to configure IP addresses for various sensors and monitoring equipment to realize the substation environment. Real-time intelligent monitoring, intelligent alarm linkage and comprehensive visual display of power, equipment hotspots, etc.
In the distribution chain, in the intelligent power distribution automation construction, the proportion of IP-based service traffic is getting larger and larger, and the mixed transmission of video, voice and data has become a development trend. At present, the IP-based distribution network access network basically adopts IPv4 technology, and the IP address is unique only on the local network segment, not a global address, and cannot be accessed across network segments, which restricts the new service of distribution automation. development of.
In the electricity consumption, the Internet of Things and cloud computing technologies have been widely used in the fields of power information collection, intelligent power service, power demand side management and energy saving services, and electric vehicle charging and replacing services. Based on the new services and new applications of the smart grid power side, a large number of IP address requirements will also be generated. At present, the company's electricity information collection and construction requires a large number of IP address support; based on the use of electricity information collection and construction of intelligent electricity service, not only need to communicate with smart meters, but also need to go deep into the customer's home, to achieve communication with the customer's home appliances, the terminal The increase in the number will greatly increase the demand for IP addresses. In order to implement the national energy conservation and emission reduction strategy, the company's power demand side management public service platform construction needs to ensure the collection and monitoring of energy use information for residents, communities/buildings, industrial and commercial customers, and achieve various small solar and wind energy on the customer side. Distributed power and energy storage equipment such as renewable energy power generation are effectively managed, and a large number of collection equipment and network equipment are deployed. Only relying on a large number of IP address support can promote the implementation of the power demand side management public service platform project. In order to promote the utilization of clean energy, the electric vehicle charging and replacing service provided by the company not only needs to meet the communication access of various stations such as charging stations, power exchange stations and distribution stations, but also needs to meet the communication needs of electric vehicles.
Prospect of IPv6 in smart gridOn June 6, 2012, the Internet Society (ISOC) announced that IPv6 was officially launched on a global scale, and the exhaustion of IP addresses will be completely resolved. IPv6 can not only solve the problem of IP address bottleneck, but also help to promote the construction and operation level of private networks in large enterprises compared with IPv4.
The combination of IPv6-based information communication network and smart grid can meet the large demand for IP addresses in smart grid applications, such as IoT and cloud computing. On the other hand, it can also meet the grid and IPv4/IPv6 user information. The need for interaction drives the overall construction of the smart grid. However, since IPv6 is also in the trial stage in the carrier network, the related equipment has not been widely promoted and applied. How to realize the smooth transition of the power communication network from IPv4 to IPv6 is a key issue for the application of IPv6 in the smart grid.
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