State Grid Corporation innovates and builds a smart energy service system

Intelligent energy service system

Energy services need to be upgraded with wisdom

At present, China's economy has entered a stage of high-quality development, and the concept of environmental protection has gained popularity. Around us, electric vehicles can be seen everywhere, and white power generation windmills and blue crystal crystal distributed photovoltaic panels have also become new landscapes. The gradual popularization of new energy-using equipment, along with the growing popularity of “Internet +” and the sharing economy, has made people have higher requirements for energy services.

In the guidance on promoting the development of "Internet +" smart energy, the National Development and Reform Commission pointed out that it is necessary to use "Internet +" as a means and intelligently to build a green, low-carbon, safe and efficient modern energy system and promote energy. Deep integration with information, promote the development of new technologies, new models and new formats of energy Internet, promote supply-side structural reforms in the energy sector, support and promote the energy revolution, and realize the transformation from China's energy power to energy power and economic efficiency and efficiency Lay a solid foundation.

In this context, State Grid Corporation adheres to electricity as the center, the network as the platform, and intelligent interconnection. It upgrades the traditional grid business with “Internet+” and actively cultivates new formats such as smart car networking, integrated energy services, photovoltaic cloud network, and energy e-commerce. New model, vigorously cultivate new kinetic energy to better serve people's higher energy requirements and national energy transformation, energy production and consumption revolution. “Steadyly promote the construction of smart energy service systems to meet the demand for new energy-using equipment such as distributed power, electric vehicles, energy storage, micro-grid, and thermal storage and heating,” said Shu Yinyu, chairman and party secretary of State Grid Corporation.

"I always wanted to buy electric cars, but the electricity load in our community is limited, and the number of personal charging piles has reached saturation." Ms. Wang, a citizen of Zhengzhou City, said with distress. Ms. Wang’s troubles are not a case, but with the promotion of the smart energy service system, her troubles will be completely solved. Under the unified control of the smart energy service system, the ordered charging pile will adjust the electric power in real time according to the residential electricity load. The charging time of the car no longer affects the peak electricity consumption of the residential residents, and the community does not need to limit the number of charging piles installed. The residents no longer need to charge the anxiety, and truly realize the electric passenger car "80" proposed by the chairman of the State Grid Corporation and the party secretary Shu Yinyu. % is charged in residential areas, 80% use low valley electricity.

With the government's successive release of the "Guiding Opinions on Promoting Energy Storage Technology and Industrial Development" and other policy documents, and under the guidance of grid peak-valley spreads, electrochemical energy storage, that is, battery-based customer side energy storage development Very rapid, in the first half of 2018, a year-on-year growth rate of 58%.

At present, the development of storage energy on the customer side also exposes some problems. The customer side storage can simply follow the peak-valley spread, without considering the linkage with clean energy, and in a charging and discharging cycle, the efficiency will lead to the loss of electricity. In fact, It is an increase in the consumption of fossil energy. At the same time, large-scale energy storage is installed on the power grid, which is equivalent to a random load and random power supply. If it is not managed in an integrated manner, it will adversely affect the safe and stable operation of the power grid.

"In order to make these energy storage devices work better, we must build a smart energy service system, use the smart energy service system to coordinate the control of the source network, and guide the customer side energy storage equipment to eliminate the wind, abandon the light, and abandon the water. It can not only reduce the cost of customer energy storage, improve customer revenue, but also effectively enhance grid security, promote clean energy consumption, and enable people to use clean electricity and cheap electricity," said the relevant person in charge of the marketing department of State Grid Corporation.

Nowadays, distributed power sources, electric heating, etc. have entered thousands of households, but there is no unified system regulation, and clean energy can not be fully utilized. All of these require smart energy service systems to coordinate control of source network storage and storage, so as to effectively adapt to new energy sources. The intermittent and volatility of power generation, while using the power trading mechanism to promote the elimination of clean energy and promote the cleanliness of the whole society.

Cultivate energy cooperation, open new formats, new models, new kinetic energy

What is a smart energy service system?

Yan Xiaowen, person in charge of the relevant technology of the State Grid Corporation's smart energy service system, said: "The smart energy service system is based on the largest number of connected charging stations in the country and the most extensive coverage of the car network platform, while giving full play to the energy conversion hub of power grid enterprises. A new generation of industrial Internet service systems built by the platform. So, where is it new?

Yan Xiaowen further introduced that distributed power sources, electric vehicles, energy storage, microgrid, and thermal storage heating have all existed, but they are all independent individuals. “Separate wars” may lead to insufficient use of resources and new waste. . For example, in areas with abundant light resources in the northwestern inland, it is difficult for the local area to completely absorb the amount of electricity generated by distributed photovoltaics, which will cause a certain degree of light to be abandoned and affect the income. The smart energy service system can solve this problem. It is an ecologically open platform that can optimize the allocation of resources on a larger scale, and allocate excess new energy to electric vehicles, energy storage, microgrid, thermal storage, etc. In various places, the ability of customers to deeply participate in grid regulation is enhanced to promote clean energy consumption.

Recently, Mr. Chen, a resident of Century Home Community in Zhengzhou City, Henan Province, tried an orderly charging service. When he sets the charge amount and the time of picking up the car, the charging pile will arrange the charging time reasonably, automatically charge when the cell load is low, full of automatic power off, and enjoy the preferential electricity price. The orderly charging service enjoyed by Mr. Chen is benefited from the intelligent energy service system built by the State Grid Corporation. Under the condition that the power grid does not expand or renovate, and does not affect the normal power consumption of the community residents, the smart energy service system can combine the current operating conditions of the power supply station area, fully tap the existing power grid resources, and control the output power of the charging pile. Guide users to orderly charge and valley charge.

Orderly charging is only the first phase of the smart energy service system. According to the relevant person in charge of the marketing department of the State Grid Corporation, next, the State Grid Corporation will continue to work on energy storage cloud networks, clean energy transactions and other services to comprehensively improve wisdom. The energy service system prepares for the implementation of the entire network.

At present, the energy storage industry is developing rapidly, but without the adjustment of large platforms, the utilization rate of energy storage equipment is difficult to reach saturation, and the benefits are not maximized. Qin Hao, head of the promotion and application of the smart grid service system of the State Grid Corporation of China, said: "There are so many energy storage devices on the customer side, and an energy router is installed at the end of the energy storage equipment to transmit real-time data to the smart energy service system, and the smart energy service system. It can guide users to eliminate wind, water and light resources as much as possible, and provide users with all-round monitoring to realize one-stop life-cycle energy storage management such as design, construction, operation, operation, maintenance and value-added. Build a service system of 'open sharing, ubiquitous participation' to form an energy storage industry ecosystem and jointly promote technological progress and healthy development of the smart energy storage industry."

In Sichuan, a wide range of rivers and streams create abundant hydropower resources; in Inner Mongolia, the whistling wind blows windmills to generate electricity; in Gansu, dazzling sunlight is being fully absorbed by photovoltaic panels. For many reasons, these clean energy sources must To a lesser extent, there is still insufficient consumption, and the smart energy service system will better realize the unified dispatch of these clean energy sources, and distribute sufficient clean electric energy to electric vehicles, energy storage equipment, electric heating equipment, etc., so that the people Use green electricity and cheap electricity to make clean energy fully absorbed.

In the future, with the continuous improvement of the smart energy service system, users will enjoy smarter energy services that are more convenient, accurate and practical, and improve the sense of power acquisition and satisfaction.

Everyone shares a smart energy ecosystem

At present, the world is in a new round of scientific and technological revolution and industrial transformation, the electrification process is further accelerated, and the widespread application of new energy-using equipment such as distributed photovoltaics, electric vehicles, and energy storage has changed users from traditional “consumers”. “Production and Consumers”, each person can use electricity and generate electricity, and the interaction between users and the power grid is significantly enhanced.

With the intelligent energy service system, the future electric vehicle owners can choose cheap clean electric energy, and the owners of Shanghai can also use the photoelectricity from Gansu. In the idle period of electric vehicles, the surplus electric vehicle owners can also sell to the power grid to benefit; distributed power supply Owners can distribute their power throughout the country through smart energy service systems to achieve higher returns.

In Jiangsu, the State Grid Jiangsu Power has built a “large-scale source network load-storage friendly interactive system”, which has 1,726 access users, and the province has 2.6 million kilowatts of interruptible load millisecond-level precision control capability, effectively responding to Innovative high grid load. In the future, the smart energy service system will cover 26 provinces within the operating area of ​​the State Grid Corporation, and cut the peaks and valleys in a larger scope, thus ensuring safe and reliable operation of the power grid and enhancing the rational allocation and complete consumption of new energy.

The smart energy service system utilizes Internet technologies such as Dayun Object Shift to build a resource optimization and configuration platform to realize the interconnection and interoperability of energy types and energy demand, and give full play to the intelligent and diversified characteristics of energy equipment, allowing users to freely choose clean energy use modes. It is an important foundation for energy service sharing and efficient energy use.

At present, the high temperatures in various places are constantly increasing, and the grid load has hit record highs. In addition, extreme weather such as typhoons and heavy rains in coastal areas have greatly increased the risk of grid operation and affected the quality of power supply. Qin Lan said: "In the future, the customer-side energy storage equipment will be gathered through the smart energy service system. When the problem of 'three abandon' occurs, the customer side energy storage equipment will be used to fully absorb the clean energy, when power peaks and disasters occur. In the weather, the role of the customer side energy storage can be brought out at the first time to protect the customer's electricity consumption, and at the same time, it can also reduce the pressure on the grid repair."

The relevant person in charge of the marketing department of State Grid Corporation introduced that the smart energy service system has completed the business, function and technology, and the energy router and controller prototype have been developed. The electric vehicle and customer side energy storage data access has been realized, which will be in the second half of this year. Continue to carry out platform defect investigation, optimize and improve platform functions, optimize energy routers and controller functions, complete equipment stereotypes, and provide serialized services such as operation and operation and maintenance. In the future, smart energy service systems will introduce multiple entities to further enhance the ability to share and open up.

It is understood that the State Grid Corporation will continue to innovate and build a smart energy service system, adhere to the "multi-tenant, ecological open" platform thinking, follow the "cloud platform + micro-service" Internet architecture, build with the basic data layer as the support, cloud control system layer As the core intelligent energy service system, realize massive heterogeneous data aggregation and modeling analysis, resource sharing and capability output, innovative application development and operation, support production intelligent decision-making, resource optimization configuration, business model innovation and industrial ecological cultivation, and build sharing Open energy service new ecology.

(Original title: State Grid Corporation Innovation and Building Smart Energy Service System)