Source: National Energy AdministrationIn recent years, countries around the world have increasingly attached importance to developing clean energy and improving energy utilization efficiency in response to climate change and ensuring energy security. The world's energy development has shown a trend of cleanliness, low-carbon, and high-efficiency. The report of the 19th National Congress of the Communist Party of China proposed "promoting the revolution in energy production and consumption, building a clean, low-carbon, safe and efficient energy system", depicting the development blueprint of China's energy industry. The new round of energy revolution, marked by the large-scale development and utilization of new energy, and with re electrification as the fundamental path, is deepening. As the centralized unit for power grid planning and engineering design technology of State Grid Corporation of China, State Grid Economic and Technological Research Institute Co., Ltd. (referred to as "State Grid Economic and Technological Research Institute") actively plays the role of technical and intellectual support from the company headquarters, conducts in-depth research on the development strategy and application practice of smart grids, establishes a complete top-level design system for smart grid planning, and outlines the formation of the company's medium to long-term smart grid development blueprint, Become a pioneering force for the company to advance towards world-class energy internet enterprises.Develop the "Smart Grid 2030" development strategyThe power grid connects energy production and consumption, serving as a network hub for energy transmission and conversion, and is at the center of the energy revolution. Supported by advanced new energy technology, distributed generation technology, large-scale energy storage technology, information network technology, and intelligent control technology, it is an inevitable trend for the development of the power grid to build a smart grid system that is "advanced, efficient, clean, environmentally friendly, ubiquitous, flexible, transparent, open, and friendly.Based on the "China Smart Grid 2030" technology project of the National Energy Administration, the State Grid Economic Research Institute has comprehensively elaborated on the guiding ideology and development ideas for the future development of China's smart grid at the national level. It has formed a medium and long-term development strategy for China's smart grid with "one platform, two stages, four types of integration, six major features, and nine tasks", and proposed that the positioning of the future smart grid is the core configuration platform of the energy internet, It is the core of the modern energy system and points out that the smart grid will go through two stages of development, transformation, and deepening reform, with a focus on achieving breakthroughs in nine areas such as promoting the optimization and complementarity of multiple energy sources, and building an active and flexible future distribution network. Gradually, it will achieve the integration and development with thermal, transportation, and information networks, and then build an energy internet characterized by "advanced, green, coordinated, reliable, flexible, and shared". The research results provide strong support for the National Development and Reform Commission and the National Energy Administration to formulate the "Implementation Plan for Promoting the Construction of China's Smart Grid" major policy, and play an important role in the innovation driven development of smart grids. Draw a roadmap for the medium and long-term development of smart grid technologyGuided by the development strategy of China's smart grid, the State Grid Economic Research Institute has conducted in-depth research on the connotation and characteristics of the energy internet and the new generation power system, in line with the nine key tasks of China's smart grid. From the perspectives of source, network, load, foundation, and common fields, it has proposed "four major categories, eighteen subcategories, and fifty key technologies", forming a technology roadmap for the medium and long-term development of China's smart grid, Provide comprehensive technical support for the planning and construction of smart grids.In terms of power supply access, State Grid Economic Research Institute focuses on conducting technical research on large-scale renewable energy operation control, multi energy complementary optimization scheduling, etc., to achieve "widespread interconnection" of the power grid and promote clean substitution; In terms of power grid, we will focus on breakthroughs in flexible DC, flexible AC, large grid control, and flexible distribution network technology, and create a modern transmission and distribution grid that is "flexible, safe, and controllable"; In terms of users, we will promote the integration and interaction of car and Internet, "Internet plus" marketing services, and demand side response management technology progress, and build a "smart interaction" user service system; In terms of basic and common fields, the focus is on research on coordinated control of source network load storage, large-scale energy storage, new materials for power electronics and electrical engineering, and deepening application technologies for cloud computing and intelligent transfer, in order to achieve "open sharing" of the power grid. The formulation of a technology roadmap for the development of smart grids helps the company firmly grasp the "bull nose" of independent innovation in core technologies, and seize the opportunity to break through the cutting-edge technologies and key core technologies with international competitiveness in the development of power grids, achieving the company's sustained innovation leadership in the field of smart grids.Assist in the planning of a first-class smart grid comprehensive demonstration areaIn April 2017, State Grid Corporation of China established a leadership group to serve the development of Xiong'an New Area and made a strategic deployment to comprehensively carry out the power grid planning of Xiong'an New Area. The State Grid Economic Research Institute quickly took action, organized professional and capable forces, and fully drew on the achievements accumulated in the development of smart grids. It proposed a "1+4+1" (one display platform, four major professional fields, and one support system) intelligent planning framework for the power grid in Xiong'an New Area, which is in line with the development positioning of the new green and smart city in the new area and aims to create an international first-class green smart grid.The Xiong'an New Area Power Grid relies on advanced information and communication systems to comprehensively create a safe and reliable control and command system, a smart and efficient construction and operation and maintenance system, a friendly and convenient user service system, an interactive and flexible clean energy system, and a panoramic information platform for smart cities. All power facilities in Xiong'an New Area have achieved full fiber optic coverage, creating a super large capacity all optical backbone communication network and ubiquitous power Internet of Things. The coverage rate of online monitoring and intelligent inspection reaches 100%, and the coverage rate of smart meters and "multi meter integration" devices reaches 100%. The three-dimensional and grid charging facilities are 100% connected to the smart vehicle network, creating a mobile and all-round virtual online business hall, achieving panoramic perception and intelligent control of power grid status, High quality and efficient user service, friendly and convenient, comprehensively improving the level of power supply service and customer satisfaction. The establishment of the intelligent planning framework for the power grid in Xiong'an New Area will strongly support the new area's power grid to meet international first-class power grid standards, and achieve world leading levels of power grid informatization, automation, and interactivity.State Grid Economic Research Institute always remembers the mission and tasks assigned by State Grid Corporation of China, adheres to the economic research concept of "leading technology and providing high-quality services", adheres to innovative development, strives to occupy the technological commanding heights, and embeds the top-level design work of smart grids into the company's strategic development chain of "building a world-class energy internet enterprise with excellent competitiveness", making positive contributions to the high-quality development of the new era company and the power grid.
