2013 China Power Grid Leaps Forward to Smart Grid

Electricity is an important driving force and guarantee for economic and social development. To realize the grand goal of building a well-to-do society in an all-round way, it is necessary to speed up the construction of a modern power grid system and provide high-quality clean, safe and reliable power.

In 2013, the “Two Conferences” of the State Grid Corporation of China proposed to build a strong smart grid by 2015, and build a strong smart grid and a “strong three-best” modern company by 2020. This is the company's objective in striving to accurately judge the level of economic and social development in China and comprehensively analyzing its own development capabilities. It is a concrete action to implement the spirit of the 18th Party Congress.

The key to transforming the development mode of the power grid is to build a strong smart grid and achieve coordinated development of power grids at all levels. From now until 2020, it is an important period of strategic opportunities that we must firmly grasp. Only by accelerating the pace of innovation and development can we build the State Grid into a modern, large-scale, safe, efficient, green, low-carbon, friendly and interactive power grid. Only by improving the security, economy, and adaptability of the national grid can we make greater contributions to building a well-to-do society in China.

The development of UHV is a top priority. This is a fundamental solution to the deep-rooted contradictions in the development of energy and power, and it is an urgent need to meet the large-scale development of various large-scale energy bases and new energy sources. The basic pattern of China's energy development center shifting to the west and the load center in the eastern and central regions will not change for a long time. The tense contradiction between coal and electricity transportation will continue to exist. The bottleneck problem of southwest hydropower, Inner Mongolia, and the northwest electricity will become increasingly prominent, and new energy will develop rapidly. Must rely on large power grids, large markets to optimize the allocation and consumption.

The establishment of a distribution network is an important foundation. Due to the long history of “re-emerging light-use for no use”, the construction of distribution grids lags behind, and the problems are accumulating. In particular, with the rapid development of distributed power supply, a large number of electric vehicles, energy storage devices and other access, distribution network from the passive network to the active network, the trend from one-way to multi-directional, and accelerate the upgrade is increasingly pressing. It is necessary to plan, build and manage distribution networks with new ideas and standards, adhere to unified planning and unified standards, coordinate the coordinated development of urban and rural distribution networks, and coordinate the development of distribution networks and the upper-level power grid to meet the rapid development of urbanization and customers. Diversified demand for electricity.

Intelligence is the direction of development. With the close integration of the Internet, the Internet of Things, communications networks and power systems, the rapid development of distributed power supplies, energy storage devices, and smart appliances, and the wide application of modern information technologies, the overall upgrade of traditional power grids to smart grids has become inevitable. We must comply with the latest trends in the development of the world's power grids, speed up R&D and construction of new-generation smart substations, promote intelligent line monitoring systems, intelligent dispatch control systems, and intelligent interactive power equipment, build high-capacity backbone optical communication transmission networks, and implement efficient information services across all areas. The network will speed up the smart upgrade and transformation of all links in the power grid and comprehensively increase the level of intelligence in the power grid.

Safety and quality are fundamental guarantees. It is necessary to correctly handle the relationship between speed, quality, safety and efficiency, implement the life cycle management of assets, and plan the entire process of planning, design, construction, operation and maintenance of the power grid. According to the development trend of new energy sources and distributed power sources, it is necessary to make overall plans to strengthen the construction of power grids and the construction of pumped-storage power stations to improve the ability of peak-shaving and frequency-regulation of power grids. It is necessary to strengthen the study of the internal laws, operational mechanisms and control measures of the large power grid, promote the integration of regulation and control and efficient coordination of all levels of dispatch, and comprehensively improve the ability of the large grid to control.

The "Strong Smart Grid Technology Standard System Plan" formulated by the State Grid clearly defines the road map for the strong smart grid technology standards and is the world's first programmatic standard for guiding the development of smart grid technology. The planning of the State Grid Corporation is to build a strong, smart grid with the characteristics of information, automation, and interaction by 2015, and to form three synchronized grids with North China, Central China, and East China as the receivers, and the northwest and northeastern grids as the sending end. The power grid's resource allocation capability, economic operating efficiency, safety level, scientific and technological level, and intelligence level have been comprehensively improved.

During the "12th Five-Year Plan" period, the State Grid will invest 500 billion yuan to build a "three horizontal and three vertical" UHV backbone backbone and 13 long-distance tributary transmission projects connecting large energy bases and major load centers. Build a core world-class strong smart grid.

And the three advanced stages of the country's strong smart grid made specific positioning:

From 2009 to 2010, it will be a pilot phase for planning, focusing on the development of smart grid development plans, formulating technical and management standards, conducting key technology research and development and equipment development, and conducting pilot work in all aspects;

From 2011 to 2015, it will be a comprehensive construction phase, accelerate the construction of UHV power grids and urban and rural power grids, initially form a smart grid operation control and interactive service system, and achieve major breakthroughs and widespread applications in key technologies and equipment;

From 2016 to 2020, the company will lead the upgrade phase and build a unified and strong smart grid. This will greatly increase the resource allocation capability, safety level, and operational efficiency of the grid, as well as the interaction between the grid and the power supply and users. By then, the power grid will play a more important role in serving the development of clean energy, ensuring energy supply and security, and promoting economic and social development.