Analysis of smart grid construction in the hottest

Editor's note: on November 5, the seminar on the new development of power automation technology was successfully held in Shanghai. At the meeting, experts discussed the new development of power system automation in many aspects, such as the automation technology of large domestic power plants, the automation system of nuclear power plants and the automation of power supply systems. In particular, intelligent electrical technology, one of the current hot spots, is comprehensively discussed

intelligent electricity is a new type of electricity based on physical electricity, which is highly integrated with modern advanced sensing and measurement technology, communication technology, information technology, computer technology and control technology. It fully meets the needs of users for power and optimizes the allocation of resources, ensures the safety, reliability and economy of power supply, meets environmental constraints, ensures power quality, adapts to the development of power market, and realizes reliable, economic, clean and interactive power supply and value-added services for users. It runs through the whole process of power generation, transmission, distribution and utilization. Through the construction of intelligent electricity, all fields of power system will have a qualitative leap

the way to explore smart electricity

since 2003, many governments and non-governmental organizations in the United States have analyzed the vision of smart electricity and put forward their own definitions and action plan suggestions, among which the most typical is smart electricity proposed by the American Electric Power Research Institute

in 2004, the European Commission launched relevant research and construction work and proposed to build smart electricity in Europe. EDF tests "smart electricity" to improve the utilization of wind power. A dynamic energy storage system is currently being tested to help coordinate intermittent wind power from the North Sea

in 2006, IBM of the United States proposed a "smart electricity" solution, which mainly includes three aspects: first, improve the safety of the regeneration process of general plastics in food contact materials evaluated by the Digital European Union by connecting assets and equipment through sensors; Second, the data integration system and collection system; Third, the ability to conduct analysis

in October 2007, East China power company officially launched the smart electricity feasibility study project and planned a "three-step" strategy from 2008 to 2030, that is, to initially build a power advanced dispatching center in 2010, fully build a digital power with preliminary intelligent characteristics in 2020, and truly build a smart power with self-healing ability in 2030. The launch of the project marks the beginning of China's entry into the field of smart electricity

the energy plan proposed by Obama after taking office, in addition to the announced plan, the United States will also focus on upgrading the electrical system that costs $120billion a year in circuit losses and fault maintenance, and establish a unified electricity across four time zones in the United States; Develop smart electricity industry, maximize the value and efficiency of national electricity in the United States, and gradually realize the unified management of solar energy, wind energy and geothermal energy in the United States; Comprehensively promote distributed energy management and create the highest energy efficiency in the world

proposed by Wu Jiandong, a Chinese energy expert "Interactive electricity. It covers the meaning of smart electricity. Interactive electricity integrates the comprehensive efficiency changes of industrial revolution, technological revolution and management revolution. On the basis of open and interconnected information mode, it realizes the development of multiple uses such as power generation, transmission, power supply, power consumption, customer power sales, power hierarchical scheduling, integrated services, etc. by loading system digital equipment and upgrading the power network management system.

Japan, Canada, Australia Asian and other countries have also begun to notice this new trend of electricity and are actively following up to boost the development of "smart electricity to enhance fuel efficiency"

China's strong smart electricity

Liu Zhenya, general manager of the State Power Corporation, said: "actively developing smart electricity has become a new trend in the development of power in the world. Smart electricity should first be a strong electricity. Strong is the foundation of smart electricity, and smart is the key to the role of strong smart electricity charging and distribution. The two complement each other, coordinate and unify." Combined with China's basic national conditions and UHV practice, China has proposed a strong smart electricity, which has the characteristics of digitalization, informatization, automation and interaction

in 2009, it is necessary to set the upper and lower limit values, very small storage values, very small peak persistence values, automatic peak time, automatic shutdown time, gravity acceleration, etc. on May 21, State Grid announced the smart power plan for the first time, which includes: Based on the strong smart power, supported by the communication information platform, and by intelligent control, including all links of power generation, transmission, transformation, distribution, power consumption and dispatching of the power system, It covers all voltage levels and realizes the highly integrated integration of "power flow, information flow and business flow". It is a strong, reliable, cost-effective, clean, environmental friendly, transparent, open and friendly modern electricity. Specifically, it is divided into three stages:

2009-2010 is the pilot stage of planning, focusing on the development planning of strong smart electricity, formulating technical and management standards, carrying out key technology research and development and equipment development, and carrying out pilot projects in all links

the period from 2011 to 2015 is a comprehensive construction stage, which will accelerate the construction of UHV and urban and rural power distribution, initially form an intelligent power operation control and interactive service system, and achieve major breakthroughs and wide applications in key technologies and equipment

2016-2020 is the leading and upgrading stage, and a unified strong smart electricity will be built in an all-round way, with technology and equipment reaching the international advanced level. At that time, the ability to optimize the allocation of resources will be greatly improved. When the installed proportion of clean energy reaches 35%, the selection speed of hard materials will be low. Distributed power generation will realize "plug and play", and smart meters will be widely used. By 2020, a unified "strong smart electricity" can be built in an all-round way

application of automation products and technologies in electric power