The grid will also think

The grid will also think? The answer is yes, the smart grid will think about the grid.

Edited by the US Department of Energy's "Grid 2030": A fully automated power transmission network that can monitor and control each user and grid node to ensure the bidirectional information and power between all nodes in the power transmission and distribution process from the power plant to the end user. flow.

China Internet of Things School-Enterprise Alliance: The smart grid is composed of many parts and can be divided into: Smart Substations, Smart Distribution Networks, Smart Meters, Intelligent Interactive Terminals, Intelligent Dispatching, Smart Home Appliances, Smart Power Buildings, Smart City Grids , Intelligent power generation system, a new type of energy storage system. Now give a brief introduction to some of them.

European Technology Forum: A power transmission network that integrates all the behavior of all users connected to the grid to effectively provide continuous, economical, and safe power.

Institute of Electrical Engineering, Chinese Academy of Sciences: The smart grid is based on a physical grid that includes various power generation equipment, power transmission and distribution networks, electrical equipment, and energy storage equipment. Modern advanced sensing and measurement technologies, network technologies, communications technologies, and computing A new type of power grid that is highly integrated with the physical grid, such as technology, automation and intelligent control technology, can realize observability (be able to monitor the status of all equipment in the power grid), control (can control the status of all equipment in the power grid), and full automation (can Self-adaptive and self-healing) and system optimization balance (optimal balance between power generation, transmission and distribution, and power usage), making the power system cleaner, more efficient, safer, and more reliable.

American Electric Power Research Institute: IntelliGrid is a power system composed of many automated power transmission and distribution systems. It realizes all grid operations in a coordinated, efficient, and reliable manner: with self-healing capabilities; rapid response to electricity market and business needs With an intelligent communication architecture, real-time, secure and flexible information flow is provided to provide users with reliable and economical power services.

State Grid China Electric Power Research Institute: Based on the physical power grid (China's smart grid is based on the UHV power grid as the backbone of the network, the development of a strong grid of voltage level grid based on the coordination), the modern advanced sensor measurement technology, A new type of power grid formed by the highly integrated communication technology, information technology, computer technology, and control technology and physical grid. It is designed to fully meet the user's demand for electricity, optimize the allocation of resources, ensure the safety, reliability and economy of the power supply, meet the environmental constraints, ensure the power quality, and adapt to the development of the power market. , clean, interactive power supply and value-added services.

The establishment of a smart grid is a huge historic project. Many complex smart grid projects are currently in progress, but the gap is still huge. For smart grid technology providers, the challenges they face are development of distribution network systems, distribution station automation and power delivery, smart grid networks and smart meters. According to the latest report of Parker's investigation agency, the smart grid technology market will grow from 33 billion U.S. dollars in 2012 to 73 billion U.S. dollars in 2020, and the market will accumulate 494 billion U.S. dollars in eight years.

According to "China Smart Grid Industry Market Preview and Investment Strategic Planning Analysis and Preview", China will build a "three vertical and three horizontal and one ring network" UHV AC line during the "Twelfth Five Year Plan" period, and build 11 UHV DC transmission lines. In the project, the investment is as high as 300 billion yuan. Although the investment during the 13th Five-Year Plan period has slightly slowed down, the investment amount has also reached 250 billion yuan.

By 2015, the large-scale and long-distance transmission capacity of the national grid will reach 250 million kilowatts, and the annual transmission of electricity will be 1.15 trillion kilowatt-hours, which will support the addition of 145 million kilowatts of clean energy for power generation and delivery, and can meet more than 1 million The requirements for the use of electric vehicles, the power grid to optimize the allocation of resources, economic operating efficiency, safety and intelligence levels will be fully upgraded.

Advanced Editing Compared with the existing power grid, the smart grid shows the distinctive features of highly integrated power flow, information flow, and business flow. Its advanced nature and advantages are mainly reflected in:

(1) It has a strong grid infrastructure system and technical support system that can withstand various types of external interference and attacks, and can adapt to the access of large-scale clean energy and renewable energy sources. The firmness of the power grid is consolidated and improved.

(2) The organic integration of information technology, sensor technology, automatic control technology and power grid infrastructure can obtain panoramic information of the power grid and timely discover and anticipate possible failures. When a fault occurs, the grid can quickly isolate the fault and achieve self-recovery, thus avoiding the occurrence of large-scale power outages.

(3) The wide application of flexible AC/DC power transmission, network factory coordination, intelligent dispatch, power storage, and distribution automation technologies make the grid operation control more flexible and economical, and can adapt to a large number of distributed power supplies, microgrids and electric power Access to vehicle charging and discharging facilities.

(4) Comprehensive utilization of communications, information, and modern management technologies will greatly increase the efficiency of power equipment use, reduce power consumption, and make the power grid more economical and efficient.

(5) Realize high-level integration, sharing and utilization of real-time and non-real-time information, and provide a comprehensive, complete and detailed grid operating status map for operational management, and at the same time, it can provide corresponding support decision support, control implementation plans and response plans.

(6) To establish a two-way interactive service model, the user can understand the power supply capacity, power quality, price status and power outage information in real time, and reasonably arrange the use of electrical appliances; the power company can obtain detailed power consumption information from users and provide them with more value-added services. .

The role of smart grids in the promotion of world economic and social development, smart grid construction plays an important role in responding to global climate change and promoting sustainable economic and social development in the world. Mainly in:

(1) Promote the development and utilization of clean energy, reduce greenhouse gas emissions, and promote the development of a low-carbon economy.

(2) Optimize the energy structure, realize the complementarity of multiple energy forms, and ensure the security and stability of energy supply.

(3) Effectively increase the efficiency of energy transmission and use, and enhance the safety, reliability and flexibility of power grid operation.

(4) Promote technological innovation in related fields, promote technology upgrading in equipment manufacturing and information and communication industries, expand employment, and promote sustainable socio-economic development.

(5) Realizing two-way interaction between the power grid and users, innovating the traditional model of power services, providing users with more quality and convenient services, and improving the quality of life of the people.

The interactive power grid is not only the basic model of the next-generation global power grid, but also the core of China’s power grid modernization.

In fact, the essence of an interactive power grid is energy substitution, compatible use, and interactive economy. Technically speaking, the interactive grid should be the most advanced integration of industries such as communications, IT, energy, new materials, and sensors, as well as distribution network technologies, network technologies, communications technologies, sensor technologies, power electronics technologies, and energy storage technologies. Synthesis has a direct and comprehensive effect on the promotion of new technologies**. As a result, smart grids are characterized by reliability, self-healing, economy, compatibility, integration, and security. I believe that the essence of the interactive grid theory is to promote the innovation and upgrading of the most important property of the industry, the power grid system, and to establish interactions between consumers and grid administrators based on the standards and technical means of information generation. .

A little more intelligence and more savings.