Power Internet of Things - New Products of IoT Technology Applied in Smart Grid

Characteristics of the power internet of things

The application of the Internet of Things to the smart grid is the result of the development of information and communication technology to a certain stage. It will effectively integrate the communication infrastructure resources and power system infrastructure resources, improve the information level of the power system, and improve the utilization efficiency of the existing infrastructure of the power system. The power grid provides important technical support for the transmission, transmission, transformation, distribution and use of electricity.

The Power Internet of Things integrates technologies such as communication, information, sensing, and automation. It deploys a variety of intelligent sensing devices with certain sensing, computing, and execution capabilities in power production, transportation, consumption, and management. The standard protocol, through the power information communication network, realizes information security and reliable transmission, collaborative processing, unified service and application integration, thereby realizing panoramic holographic sensing, interconnection and seamless integration of power grid operation and enterprise management. According to the characteristics of Internet of Things technology and the development requirements of smart grids, the power Internet of Things should have the following five basic characteristics:

Comprehensive perception: comprehensive intelligent identification of information in all aspects of power production, transportation, consumption, and management. On the basis of information collection and aggregation processing, the whole process, asset life, and customers' all-round perception are realized.

IP interconnection: Standardize communication protocols and communication networks between sensors and between sensors and application systems through power Internet of Things to achieve effective information transmission and interaction.

Reliable transmission: The use of power fiber, carrier, wireless private network, Internet, etc., to achieve reliable information transmission between the sensing layer and the application layer.

Intelligent processing: comprehensively use high-performance computing, artificial intelligence, distributed database and other technologies to perform data storage, data mining, intelligent analysis, and support business functions such as application services, information presentation, and customer interaction.

IT Convergence: Become an extension of the enterprise IT architecture, improve the complementary enterprise IT architecture, and at the same time, as one of the most important components of the enterprise IT architecture, it is highly integrated with the enterprise IT architecture.

Smart grid

Smart Grid and Internet of Things

The smart grid and the Internet of Things are two research hotspots in the academic community and the industry. The two have very close links in terms of connotation, characteristics, and means of implementation:

First, the smart grid, as an important application area of ​​the Internet of Things, can achieve different levels of application of the Internet of Things technology. The existing systems of dispatching automation, regulation and integration, and electricity information data collection are all different forms of Internet of Things applications. Second, the Internet of Things technology is an important supporting technology for smart grids. It can bring multiple values ​​to the smart grid, improve the depth and breadth of information perception in all aspects of the smart grid, and improve power system analysis, early warning, self-healing and prevention. The ability of disasters to improve the safe operation level of the power grid, realize the high integration of the power grid “power flow, information flow, business flow”, and the refined management of power from production to consumption, to achieve energy saving, economical and efficient. Third, the deep integration of the smart grid and the Internet of Things can drive the development of smart terminals, smart sensors, information and communication equipment, power chips, software, and the operation and maintenance industry.

Although the Internet of Things technology has been applied to different degrees in the smart grid, the power Internet of Things is still in the early stage of development, and there are many shortcomings, mainly reflected in three aspects:

First, some scene monitoring data is less, and there is no comprehensive perception of the device and system status and environment. The standardization and practical level of sensors need to be improved. Second, existing application systems communication methods and protocols are not uniform, it is difficult to achieve standardized collection and transmission of data, and the construction mode is not economical. The terminal access communication network does not meet the requirements of communication capability and reliability of the power Internet of Things. Third, the existing application systems are built independently according to their respective professions, supporting data dispersion, and have not yet formed a unified data service and application platform.

Power internet of things

Progress and prospects of power Internet of Things construction

Based on the principle of “unified planning, unified standards, unified organization, unified implementation” and the overall structure of SG-ERP, the State Grid Corporation's power IoT construction concentrates on the core research team and superior resources of the power IoT within the company's system, and conducts planning research and standards. Formulation, product development, product verification, and through the establishment of application demonstrations, gradually promote IoT applications to achieve synchronous construction with the smart grid.

The company's power IoT construction aims to further study the connotation of power Internet of Things and the characteristics of power grid application, develop a development plan and research framework for power Internet of Things, and realize a panoramic holographic power Internet of Things that is synchronized with the smart grid and covers the company's power supply range. The construction of the "three episodes and five majors" system provides support.

The Power Internet of Things can provide all-round support for the basic operation of the power grid and the modern operation mode of the enterprise. The focus is on the power layer of the Internet of Things, the network layer and the application layer: the perception layer focuses on the unified information model, including unified identification and unified Semantics, unified data expression format, security protection, etc., form relevant standards and specifications, research and development of series of sensors, sensor chips, standardized communication modules and information format conversion devices. The network layer focuses on research and development of unified communication protocols, research and development of standardized communication chips, wireless communication devices, backbone communication devices, standardized access gateways, network management systems, etc., introducing a variety of converged communication technologies, enriching communication means, and solving reliable transmission of information over long distances. problem. The application layer focuses on the unified data model of the Internet of Things based on the SG-ERP architecture, realizes data storage management and unified services, and develops a comprehensive application platform for power and Internet of things to provide support for existing business systems and application services.

Recently, the Internet of Things Technology Center of the State Grid Electric Power Research Institute took the lead in declaring the 2013 National Science and Technology Major Project “Multi-service Environment IoT Massive Information Capability Platform Architecture, Key Technology Research and Experimental Verification”, 2012 National Development and Reform Commission Internet of Things Technology R&D and industrialization special project “Rural IoT, Sensor Communication Device, Chip and Processing System R&D and Industrialization”, and National Development and Reform Commission National Smart Grid IoT Application Demonstration Project, which lays the foundation for the company's key technology research and development and industrialization of power and Internet of things The foundation will help promote the simultaneous construction and deep integration of the Internet of Things and the smart grid.

According to the plan, by 2015, the research and development and industrialization of core technologies of power and Internet of things, the research and formulation of key standards, the establishment and improvement of industrial chains, and the demonstration and promotion of major applications will achieve remarkable results, initially forming an innovation drive, application traction, and coordinated development. The development pattern of the power Internet of Things industry with multiple win-win results. Specifically include:

The ability to innovate in technology has increased significantly. To overcome a number of core technologies of power IoT, and to obtain important research results in the fields of sensing, transmission, processing, and application; to study and formulate national, industry, and enterprise standards; to promote innovative carriers such as the company's power IoT R&D operation and maintenance center and industrial base. Construction lays the foundation for the formation of continuous innovation.

Initially completed the construction of the industrial system. Form a relatively complete power IoT industry chain, cultivate and develop power IoT R&D, production, engineering services and operation and maintenance backbone enterprises, and initially form a power IoT industry system with complete categories, reasonable layout and optimized structure.

The scale and level of application have increased significantly. It is widely used in all aspects of smart grids to form a relatively mature, sustainable and unified power IoT construction and operation mode to realize the simultaneous construction of power Internet of Things and smart grid. Comprehensively develop the comprehensive application of power and physical Internet and the construction of public service platform to realize the comprehensive integration of smart grid and Internet of Things.

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