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Mobile WebSiteChina is currently in the critical period of a new round of power reform. Building a clean, low-carbon, safe and efficient new-generation power system has become the core of China's energy transformation and revolution.
A significant increase in the proportion of non-fossil energy, the formation of non-fossil energy-based power supply structure is an important goal of the new generation of power systems, building a multi-energy complementary energy Internet based on the development of smart grid is the development direction of China's new generation of power systems.
At the recent "2018 National Energy Internet Conference", Zhou Xiaoxin, an academician of the Chinese Academy of Sciences and honorary president of the Chinese Academy of Electric Power, delivered a keynote speech entitled "New Generation Power System and Energy Internet."
Academician Zhou Xiaoxin introduced the core objectives of energy transformation, and outlined the development and stage characteristics of China's three generations of power systems, and introduced the key technologies of China's new generation of power systems from six aspects. In addition, he also said that in the future, wind power generation will account for about 70% of the installed base.
Academician Zhou Xiaoxin’s speech data is substantial and the concept is ahead of schedule. Huaxia Energy Network will organize the speech as follows (the content has been deleted, the title is added by the editor) for your reference:
Looking back at the centuries-old history of power system development, it can be divided into three generations. The first generation is small units, low voltage, small grid, small scale. The second generation is large units, ultra-high pressure, and large power grids. The third generation is a new generation of power systems combining renewable energy, clean energy, backbone power grids, regional distribution networks, and microgrids.
In the field of superconducting transmission technology, there is a new concept, that is, a pipeline can both send electricity and gas, combine natural gas and superconductivity in one tube, superconductor needs cooling, and liquefied natural gas needs cooling. At about 110 degrees, it is the theoretical basis for the use of this project. This project is still in the research stage, and it is time to let us know.
5. Hydrogen energy production, storage and transportation technology. Many domestic units want to develop on hydrogen energy. For those who engage in electricity, how can they be the lightest? Electrolyzed water is the lightest. With electrolyzed water, the electricity that is discarded in the western region and discarded by the abandoned light can be used. In the future, it is assumed that the proportion of renewable energy is very large, but what should I do if I encounter continuous cloudy days? In this way, the power system can't support it. Now the energy storage is very good. It only solves the problem of a few hours and the fluctuation of the day. However, fluctuations of one week or even two weeks are not easy. Therefore, the method of producing hydrogen and producing natural gas can solve the problem of encountering under special circumstances.
A new generation of artificial intelligence technology. How to make rational use of artificial intelligence in the power system, including: what problems to solve, the bottom layer or sensing, artificial intelligence platform, big data, machine learning, computer vision, natural language processing, intelligent robots, etc.
New generation power system and energy internet
The power supply structure of various types of primary power generation and triple supply in the traditional power system is connected to thousands of households through a large-scale interconnected transmission and distribution network, and has the basic characteristics of natural network. Traditional power systems and consumer power have already been plug-and-play, and power users have taken power from them as needed, with shared Internet features.
However, the limitations of the traditional power grid are as follows: First, the traditional power system does not support the plug-and-play of the user power supply, and the two-way flow of energy information between the user and the power grid cannot be realized. Second, the traditional power system does not adapt to various forms of synergistic complementarity. The ability to improve efficiency is limited, and more can complement each other to manage electricity; third, it cannot achieve market-oriented operations and services are limited. Therefore, it is necessary to engage in the energy Internet.
Energy Internet is an emerging ecological energy system with renewable energy as the priority, power and energy crisis as the foundation, multiple energy synergies, and a total of consumer synergies, centralized and distributed synergies, and broad participation of the public. It realizes the deep integration of Internet technology and energy, enables efficient use, and increases the proportion of renewable energy.
The smart grid is a highly integrated power system with information technology and physical grid; and the energy Internet is an intelligent energy system, especially multi-complementary. Moreover, it focuses on industrial development and promotes industrial development.
Nowadays, many companies have mentioned the energy Internet of Things, which is the world's Internet of Everything and the processing of digital information transmission. Its purpose is to achieve intelligence based on a comprehensive perception.
The new generation of power system inherits all kinds of primary energy generation of traditional power systems, and the layout structure connects thousands of households through large-scale interconnected transmission and distribution networks, which has the basic characteristics of natural network. The new generation of power systems inherits the characteristics of traditional power systems.
The new generation of power systems has developed the plug-and-play of traditional end users, supports distributed users, realizes two-way flow of energy information, and has a complete open sharing Internet trait.
There are two other points in the promotion and development of a new generation of power systems. One point is that the new generation of power systems supports the synergy of multiple energy sources at the source, effectively improving the capacity of renewable energy. The second point is that the energy Internet is deeply integrated with the information technology based on the smart grid, which provides strong support for the dispatch control, operation optimization and market-oriented operation of the high-renewable renewable energy access system, and further expands the user's comprehensive energy service. The function.
