China's Strong Smart Grid Technology Standard System Planning and Main Tasks of the Twelfth Five-Year Plan

Mr. Shen Jiang, Deputy Director of the State Grid Smart Grid Department, delivered a speech at the Seventh China Electric Industry Development Summit Forum and the Eleventh China Electric Industry Top 100 Research.

The theme of our meeting is to look forward to the “Twelfth Five-Year Plan”. I will tell from this development plan that this summit forum is attended by colleagues and leaders of the industry. I will end with the advancement of smart grids to new industries.

Nowadays, all walks of life are doing the “Twelfth Five-Year Plan”. In the “Eleventh Five-Year Plan” period, the installed capacity of the country by the end of this year has reached 979 million kilowatts, a very rapid increase. This is the change at the end of this year. I don’t read these numbers. I basically doubled it from five years ago at the end of this year. At present, the national network is like this. The North China Power Grid and the East China Power Grid are connected through millions of kilovolts of AC. We recently put the Xinjiang power grid. Connected to the Northwest Grid. Ongoing is the DC grid of the Northwest Power Grid and Tibet. This is the 11th five-year situation.

In the assessment of the 11th Five-Year Development, we have developed millions of kilowatts of 750 to become the main grid of each company. During the 11th Five-Year Plan period, we rebuilt a power grid in five years. We now have power grids regardless of capacity, installed capacity, and strength. Both have doubled in comparison to five years. This is a specific indicator and basically doubles.

However, we now have shortcomings. In the “Twelfth Five-Year” development model and forecast, the sustained economic and social development will put forward urgent requirements for the development of power grids. Changing power development methods will put forward higher requirements for the development of power grids to cope with changes in climate and the energy revolution. Requires the construction of a strong smart grid, which means that we must develop more clean energy, reduce the dependence on fossil fuels, and at the same time meet the task of our country's commitment to carbon reduction, all of which require smart grids to meet these needs. Building a harmonious society presents a challenge for smart grids. Before we used electricity as lighting, water heating, etc. Now we are using electric cars and so on.

The country's installed capacity will undergo some changes. The first major change is that the national coal-to-electricity ratio will be reduced. Of course, the focus will be on coal-fired power, but coal power will drop from 70% to 64%, and new wind power, hydropower and nuclear power will be added. The future power flow of our country is such a flow. In terms of load, it is first of all in the coastal areas of North China, Central China, East China, and South China. These regions are the largest power users. Where does the power come from? The new sources of power growth are several large coal fields in Xinjiang, Jiuquan Dafengdian, Inner Mongolia’s new coalfields and wind power, and southwest hydropower. This is mainly to supply our North China, Central China, and East China. Coal power from Xinjiang may be diverted from Sichuan, and southwest water and electricity will be sent to South China in addition to East China. In addition to the new power supply development, we also need to introduce power from Kazakhstan, Mongolia and Russia.

The main focus of the hydropower project is to develop the Jinsha River, Dadu River hydropower bases, and major coal and electricity bases. We must focus on the development of coal power in the Xinjiang region, as well as in Shanxi, Shaanxi, and Inner Mongolia, but we will also develop nuclear power at the earliest.

The development of wind power in the next ten years will build seven million-grade power generation. Now the biggest is the Three Gorges. We say that each of these seven is a Three Gorges, distributed in Xinjiang, Gansu, Inner Mongolia, and Jiangsu, etc. The seven wind power developments are very large.

Smart grid is a hot topic for everyone. Simple planning is like this. In terms of power generation, it mainly solves new energy access problems, standard issues, and large-capacity energy storage research and application. The transmission link is mainly transmission and transformation. The monitoring, substation, and smart substations are the key links. We will build more than 5,100 substations with a voltage level of more than 70,000 and 1,000 substations with intelligent transformation. This figure is very scary in the world and there are smart substations. Centralized monitoring, etc., distribution networks must establish intelligent and integrated distribution networks. There is also distributed power access. In addition to large-scale wind power and solar power, there is also a small, decentralized access. There are a lot of electricity links, such as the entry of smart circuit meters. Intelligent community, intelligent buildings will develop rapidly.

This is just a question that Minister Lu has given me. The State Council recently issued a decision on accelerating the revitalization and development of new industries. Just now the leaders of the Ministry of Science and Technology are also talking about emerging industries. There are seven new industries, and the fifth is new. The energy industry has accelerated the construction of smart grids and operating systems that adapt to the development of new energy. Put the smart grid in new energy, then how to interpret it?

That is, putting the smart grid in the new energy industry shows that it is hoped that the smart grid can promote the development of new energy, or when Chairman Wu Bangguo looked at the smart grid, he said one thing. He said that I understand one thing, intelligence. The power grid is the bottleneck of new energy development. It is very appropriate to this sentence. What does the bottleneck mean? It is the development of smart grids that will hinder the development of new energy. This is the bottleneck. In turn, in a positive sense, the development of smart grids will promote the development of new energy sources.

Give two examples to everyone and tell everyone what this means. We look at the development of wind power in Germany. North of Germany is the North Sea. He wants to build a circle of wind power. At present, the scale is getting larger and he has to pull cables. This is the case with offshore substations. The installed capacity of nuclear power in Germany is 30%, and coal power is 40%. This is his ratio. As the load growth of these European countries in Germany is relatively slow, the rapid growth of wind power will inevitably affect the development of nuclear power and coal power. In other words, the load will not be long. If you use wind power, other power will decline, and the German nationals will vote to repeal. Nuclear power and coal to wind power. What does that mean? The original energy must be withdrawn, giving way to new energy sources. These new sources of energy are basically on the coast of the North Sea. That is to say, due to changes in the energy structure of the German electricity grid, the varieties of power generation are changing, and the entire grid needs to be re-arranged. The original nuclear power was built in the load center. Now that nuclear power is cancelled and wind power needs to be quoted, these things need to be re-arranged by the power grid. Therefore, the power transmission method has become long-distance transmission, even in a single direction. This kind of unstable wind power The need to develop energy storage, etc., needs to be resolved. This is where his smart grid must be solved. It is necessary to solve long-distance transmission problems, unidirectional problems, solving unstable uncertainties, and after the load terminal has no power supply. , Its voltage support problem, these are the problems that the smart grid should solve.

What is Europe brewing? In addition to wind power, solar power generation of 100 million kilowatts is needed in Sahara, Africa. The introduction of these from Africa to the central European region requires the establishment of UHV transmission lines. This is brewing in Europe. This is why the smart grid is to be solved. New energy generation problem.

To give another example, in the previous section of Ali in Tibet, Ali was an isolated network. Tibet is now a big two small grid, a Tibetan power grid is now connected, and the other is the Tibetan capital grid, close to This piece of Sichuan, but Ali is in the most western part, this area is always an orphan network. At present, there is only one hydropower station. This is a 5,000 kilowatt hydropower station. This dam is not high at all. Today, the water is very good and it begins to overflow. Flow, the entire installed capacity of its hydropower station on the 6000 kilowatts, even less than 10,000. The hydropower station can provide enough power in the summer, and in the winter, there is no water supply. Here, another thermal power plant was built. Oil is burned. Each oil machine is quite large, but at Ali, where the altitude is 4,500, only half of the electricity is generated, so the four oil machines add up to 5000 kilowatts, so its electricity load. How much is summer is 4,000 kilowatts, winter is 5000 kilowatts, that is to say, a hydropower for him to use in the summer, winter oil burning machine is enough, the cost of the oil burner is more than three pieces of money, Ali is the highest electricity price in the country One, two, you can look at the most popular use of energy-saving lamps in Ali. So it is such a form of electricity, where a photovoltaic power plant of 10,000 kilowatts is to be built, the load is 0.4 million kilowatts, and the hydropower is 0.6 kilowatts. If the development of solar energy is 10,000 kilowatts, that is, the ratio of solar energy to hydropower is The combined power of thermal power is even greater, and it becomes the largest power source. If there is such a power supply, Ali will dare to use electricity. When the light is strong during the day, it will be 10,000 kilowatts. Will we dare to use 10,000 yuan for the load? We all know that Tibet may not be powered at all times. Can we use it? This is a typical micro-grid. To develop new energy sources, if new energy is to be developed in regions like this, it cannot be developed without a smart grid. What problem does the smart grid have to solve? One is to solve the problem of how the existing solar energy of the solar energy and the existing oil and gas are coordinated and operated. What is the problem of solar energy and how does the solar energy go on during the daytime? To store energy, these are all to be solved through smart grids.

So I will simply answer this question, the issue of new energy and smart grid development. Finally, I talk about the development of smart grid and industry. We have recently done a strategic study of the smart grid to study what the relationship between smart grid and energy allocation and low-carbon economy is to users. In particular, what is the relationship between smart grid technology innovation and industrial development? Let me say this conclusion.

The industries that the smart grid can drive upstream power generation, user-side, information-side, and downstream, etc., involve so much, which is most beneficial to the industry's development? The best growing smart grid is the development of the best industry. This side, the power generation side, is the largest for wind power generation, followed by solar energy, this red is the grid side, the power grid industry is the manufacture of power electronic equipment, and this development space is the largest . You see our conventional, circuit capacitors, transformers, switchgear, etc., are not the highest, in fact, the smart grid is the biggest promotion of our traditional electrician, and growth is the best. In the user-side industry, there are electric cars, distributed power generation and solar energy manufacturing. For the information and communications industry, the most important thing is to promote the production of electronic components and advanced energy storage equipment manufacturers. This is the most impetus. Downstream industries, green, and promote the largest are smart buildings, smart communities and smart cities.

The development of smart grids I sum up because new energy development must be developed. It can be developed to promote the development of new energy, and changes in new energy can drive changes in our national energy policy, and even promote the development of the entire social economy. The construction of the smart grid has shaken off the traditional industrial chain. Originally, I needed the power transmission and distribution industry. This is not the case now. In addition to the power transmission and distribution industry, the upstream and downstream industries need the support of many industries. At the same time, the last sentence is the smart grid. It will stimulate the development of many emerging industries.