Breaking Energy System Barriers Energy Internet Helps Energy Freedom

"Energy Internet" is an area of continuous exploration in the energy industry in recent years. At the end of April this year, the first batch of energy Internet demonstration projects selected by the State Energy Administration ushered in the "Acceptance Examination". Up to now, the acceptance work has not been completed, the energy Internet projects have experience, twists and turns, have their own characteristics in technology and landing projects, and are still in the process of exploration. This newspaper will continue to pay attention to the development of energy Internet and investigate the progress of related projects.

The history of human energy use can be traced back to more than one million years ago, while the large-scale use of fossil energy began only after the invention of steam engines at the end of the 17th century. At the current rate of energy consumption, global fossil energy can only last for two or three hundred years at most. In the long history of human energy utilization, the history of fossil energy for five or six hundred years is only a drop in the ocean. In the foreseeable future, renewable energy may replace fossil energy to open a new chapter in human energy history. In contrast to the current energy system, the excessive dependence of human society on fossil energy has resulted in a centralized energy management system, which has natural monopoly and monopoly of interests. Building a user-led bottom-up distributed energy system with green, low-carbon and clean energy as the carrier, realizing regional green production, transformation and absorption of various forms of energy, is expected to upgrade the energy industry model. Energy hub is the basis of realizing energy internet. By building energy hub, energy flow, information flow and business flow between power network, heating network and natural gas network can be transformed and connected. However, considering the impact of energy conversion equipment efficiency on energy efficiency, information security problems caused by cross-network information exchange technology and information disclosure of the whole network, system optimization problems caused by different energy trading mechanisms, energy dispatching problems caused by different energy spatio-temporal scales and benefits caused by different settlement systems Distribution problems, such as the high concentration of resources and interests of traditional energy enterprises, are difficult to effectively break the barriers between electricity, heat and gas networks in the short term, and it is difficult to implement large-scale energy conversion in the short term by building energy hubs on the energy network side.

The explosion of "self-media" dominated by end users has led to the leap-forward development of the Internet industry, resulting in many new formats. This successful case can also be extended to the energy Internet industry. In the early stage of the development of energy internet, we can actively sink the multi-energy interconnection node to the user end, and realize the conversion of multi-energy in the terminal. This kind of energy terminal with the characteristics of energy hub is defined as "self-energy". As the energy terminal of the energy internet, self-energy is a small energy autonomous region coupled by multiple energy sources. It has the important characteristics of full duplex, distributed, equalization and intellectualization. To break the barriers of different energy systems by terminal hub, firstly, on the basis of studying the optimal control method and intelligent algorithm of self-energy, we should integrate energy routing technology, multi-energy storage technology and multi-energy conversion technology to realize multi-energy hub and interconnection from the edge of energy internet. Then, according to their own energy needs, self-energy optimizes the dispatch of energy output of internal equipment, so as to achieve the economic operation of self-energy body.

Throughout the development process of the Internet, the explosive growth is inseparable from the broad participation of the masses and the convenient opening of the platform. This bottom-up interactive structure greatly increases the user's sense of participation and enthusiasm. In view of this, it is necessary to provide an interactive platform for energy trading that can realize the active and convenient participation of many energy suppliers and end energy users in the process of building the energy Internet. The traditional "B2C" energy sales model should be transformed into a "B2C-C2C" mixed trading model, and the energy trading platform should be shaped into an energy sector.“ Alibaba. Energy trading platform can not only provide low-cost and high-quality energy commodities for energy terminals, but also provide personalized and customized services for participants according to different energy supply and demand situation and source-load-storage characteristics. Participants can freely conduct different forms of energy trans-temporal transactions on the platform, thus achieving high energy efficiency. Utilization and benign interaction.

Just as e-commerce confronts producers and consumers directly through the Internet, self-energy matches other self-energy and energy suppliers in the region through the platform, thus realizing face-to-face energy supply and demand, effectively reducing energy transmission transaction links and energy exchange costs. As the grassroots stratum of energy internet, self-energy is the main force of participating in energy trading platform. By participating in energy trading, we can fully optimize the energy market environment, promote the efficient use of green energy and realize the rational allocation of energy resources to the greatest extent.

With low-carbon green as the direction and resource sharing as the goal is the key to promote the transformation of energy industry from monopoly mode to benign competition mode. On the basis of building the terminal energy hub and the interactive platform of energy transaction, under the industrial mode of resource sharing, self-energy entities can obtain high-quality, low-cost and even partly free information, computing resources, knowledge, services and energy itself through the energy Internet platform. It can be expected that this is an energy supplier, terminal self-energy source, energy network operator, energy source.