Development trend of power system automation

In recent years, the country's requirements for automation and intelligent construction of power system have been continuously improved, and enterprises have responded by actively making smart grid construction plans and investing heavily. Among them, the automation construction of power transformation and distribution is the top priority of smart grid construction, especially the automation level of distribution network in China is still very backward, and there is still huge room for development in the future.

Smart grid runs through the whole process of power system, which will have great demand for automation.

Power automation is an industry that uses modern computer technology, communication technology, information processing technology and automatic control technology to monitor, control, protect and manage power generation, transmission, substation, distribution, electricity consumption and dispatching, and is called the "brain and nerve" of power system.

Smart grid is a new generation of power system based on traditional power system, which integrates new energy, new materials, new equipment and advanced sensing technology, information technology, control technology, energy storage technology and other new technologies. It has the characteristics of high informatization, automation and interactivity, and can better realize the safe, reliable, economical and efficient operation of the power grid, so that the power grid can partially heal itself in the event of an accident, with strong compression resistance and adaptive random access of various energy sources. In all aspects of smart grid construction, automation will be the foundation, especially in power distribution and electricity consumption, which will have a huge demand for automation technology and equipment and is expected to promote the rapid development of power automation industry.

State Grid has gradually increased its investment in intelligence, and the automation of power transformation and distribution is the key point of construction.

Finally, from the development planning of the largest power company in China, the importance of smart grid construction is increasing day by day. In terms of smart grid investment, according to the General Report on Intelligent Planning of State Grid, the total investment of State Grid in 2009-2020 was 3.45 trillion yuan, of which intelligent investment was 384 1 billion yuan, accounting for1.1%of the total investment. At the same time, according to different stages, the proportion of smart investment is rising. It can be seen that smart grid is the key direction of power grid construction of State Grid Corporation of China.

In addition, during the Thirteenth Five-Year Plan period, electricity consumption accounted for the highest proportion of intelligent investment, reaching 28.9%, mainly because the construction scale of projects such as electricity consumption information collection was large, so the investment was large; Secondly, the distribution link accounts for 23.2%, and the substation link accounts for 19.5%, which is mainly the large-scale construction of distribution automation and intelligent substation construction and transformation projects. In other words, in the process of smart grid construction, substation, power distribution and electricity consumption will have greater demand for automation.

The backward development of distribution automation in China will be the focus of future development.

It is worth mentioning that distribution network is the key link to realize smart grid, and the development level of distribution automation in China is very backward. At present, the coverage rate of distribution automation in China is still only about 30%, far lower than 90% and 100% in France and Japan. The average coverage rate of distribution automation in developed countries is about 70% to 80%. With the increasing installed scale of new energy, the development of distributed energy, the growth of electric vehicles and the need to deepen the reform of power system, the construction of domestic distribution network has great development potential.

In addition, according to the Action Plan for the Construction and Transformation of Distribution Network (20 15-2020) issued by China, it is clear that distribution network automation is very important to improve the reliability of power supply and is one of the keys to the development of power automation in the future. At the same time, the "Planning" clearly stated that the coverage rate of distribution automation in China should reach 90% in 2020; At the same time, according to the "Thirteenth Five-Year Plan", the goal of fully realizing 90% distribution automation coverage in 2020 is also mentioned, in which the distribution automation coverage of provinces (autonomous regions and municipalities) in the eastern region is not less than 95%, and the distribution automation coverage of provinces (autonomous regions and municipalities) in the central and western regions is not less than 90%. But up to now, the coverage rate of completed distribution automation projects is far from the target of 2020, and there is still a lot of room for improvement in the future, which will be the focus of power automation development.

—— For more data and analysis, please refer to Forward-looking Industry Research Institute's In-depth Investigation and Investment Strategic Planning Analysis Report of China Electric Power Automation Industry.