State Grid Beijing Electric Power Company Smart Grid Supports the Construction of Smart City in the Capital

One month before the 2013 heating season, within the Second Ring Road, the “coal to power” project is under construction non-stop. The "coal to power" project is an initiative of the Beijing company to promote the construction of smart Beijing. Every day, the construction team of the Beijing company must install power supply automation terminal equipment for thousands of residents. As soon as winter comes, the relevant power supply information of these automated terminal devices will be integrated into the capital smart grid dispatching technical support system to ensure safe and stable power supply during heating.

From the completion of the first smart apartment in Beijing, to the settlement of the comprehensive demonstration project of the smart grid in the future science and technology city, from the intelligent transformation of the substation to the construction of the pilot project of the new generation of smart substations, and the gradual transformation of electric vehicle charging and replacement power stations from urban areas to suburbs Popularization, the Beijing company shoulders the important mission of Beijing's power supply service in the capital, and also undertakes the research and development of smart grid technology projects and the construction of pilot projects. Today, the smart grid is becoming a strong support for the construction of Beijing's smart city, illuminating Beijing, an international metropolis, with light.

Clean power grid to optimize the capital environment

"It is now officially connected to the grid for power generation, and close the grid-connected micro-break switch." In January this year, the first person in Beijing to successfully integrate the household photovoltaic system into the small photovoltaic power plant installed on his roof and balcony was officially incorporated into the Beijing Power Grid. . Today, these amorphous silicon thin-film photovoltaic power generation equipment are operating normally.

Smart grid can promote sustainable development of renewable energy. The development of smart grids can achieve accurate prediction and reasonable control of various resources including wind energy and solar energy, expand market consumption space, and thereby better promote the optimization and adjustment of the energy structure. Huang Renle, deputy director of the Beijing Municipal Science and Information Department, said: "Smart grids can achieve 100% renewable energy through active planning, active service, and active management."

According to statistics, as of October 9th, the Beijing company has accepted 96 distributed photovoltaic power generation grid applications, with a total installed capacity of 40559.52 kilowatts, and has achieved 32 grid-connections with a total capacity of 18716.43 kw.

Promoting green urban development is an important part of smart grids supporting smart cities. The development of smart cities in the capital requires clean energy. "Replace oil with electricity" highlights the advantages of energy saving and clean energy. In September, the Beijing company's intelligent charging and replacement service network ushered in a new harvest. Beijing's largest electric bus charging and replacement power station and the country's largest electric taxi charging station have been put into operation in Sihui transportation hub and Tongzhou district . At the same time, the "Electric Beijing Partner Program" has also entered the campus, and private electric car rental has once again moved towards the capital residents. In terms of operation and maintenance services, the company has also established a unified electric vehicle operation guarantee platform, and all demonstration operation vehicles are included in the platform management to realize online monitoring and fault real-time treatment of electric vehicles.

The Beijing company has steadily promoted the construction of electric vehicle charging and replacement power stations, and the intelligent charging and replacement service network development plan has been incorporated into Beijing's "Twelfth Five-Year" electric vehicle development overall plan. So far, 65 electric vehicle charging and replacement power stations have been built in the Beijing area, and the service network covers all districts and counties in Beijing. Among them, the electric taxi charging station provided a total of more than 200,000 charging services for 750 electric taxis, with a charging capacity of 3.75 million kWh, and the mileage of electric taxis served was nearly 20.76 million kilometers.

Reliable power grid, making electricity safer

Smart grid construction can achieve safe and efficient operation of power systems. Promote the construction of smart grids, ensure the safety of urban electricity use, facilitate comprehensive monitoring and flexible control of the power system, improve the stability of system operation, promote the construction of smart cities, and make the residents of the capital more comfortable with electricity.

This year, extreme weather has occurred frequently, with heavy rain and sun exposure coming one after another. During the flood season, there were 27 large-scale rainfalls in Beijing. In August, in just half a month, the maximum load of Beijing Power Grid broke the historical record three times. Throughout the summer, the company's intelligent dispatch system was scientifically organized, accurately commanded, and efficiently coordinated. The Beijing Power Grid withstood the high temperature and heavy load and heavy rainfall weather attacks, and it operated safely and efficiently. In addition, the Beijing company has comprehensively upgraded its production command system, added flood control modules, meteorological monitoring modules, and road condition modules, and developed and applied a new generation of lightning monitoring system. Electrical safety.

Building a strong smart grid puts higher demands on the development of distribution networks and technological innovation. The construction of smart cities in Beijing poses new challenges to the planning and construction of the capital grid, especially the smart grid. In the “White Paper on Serving the Capital Development” released by the Beijing company at the beginning of the year, Beijing ’s urban power supply reliability will be increased to 99.99% by the end of 2015, and the average household blackout time will be reduced from 1.33 hours to 52 minutes.

In order to achieve a significant reduction in the average power outage time of users, the Beijing company carried out construction and transformation of the existing distribution network grids and equipment, and at the same time greatly improved the distribution automation coverage and practicality, and improved the construction of the distribution network emergency repair system. In 2012, the average power outage time of urban households fell from 1.62 hours to 1.33 hours, effectively reducing the number of households during power outages 381,196 hours / household and increasing the power supply by 22.85 million kWh.

This spring, the key technology laboratory of modern distribution network was established in the company. Relying on the think tank of famous domestic experts and scholars in the development of distribution, a new start has been made, which also means that the company has a safety and reliability in distribution network. , Economic research will have new breakthroughs.

Communication information platform is an important means to support the construction of a strong smart grid. In order to cope with the storage and access to a large amount of real-time data generated by information projects during the construction of the "smart grid", Beijing Company has researched and built a massive real-time data management platform. In June, the project of “Building a massive real-time data management platform to support smart grid applications across business areas” won the first prize for the excellent case and solution for supporting the smart grid with informatization. Through the research of massive real-time data management platform, the project integrates the real-time and non-real-time, monitoring and management information to the greatest extent, and lays the foundation for accumulating experience and real-time data management for smart grid applications.

Efficient grid, inspire innovative energy

The outdoor electric vehicle charging piles and wind-solar complementary street lamps are arranged in a row, and the rooftop solar photovoltaic power generation equipment produces clean energy. The residents in the house can always know the power consumption of home appliances ... The achievements of the company ’s smart grid transformation, the Zuoanmen smart apartment shows The advanced concept of smart grid in new energy access, energy optimization management, and interactive services.

Now, this concept will be further extended in the smart grid demonstration project of Beijing Future Science and Technology City. The project not only integrates smart communities, electric vehicle charging and replacement facilities, and power fiber to the home, but also covers many new technologies such as Internet of Things technology, cloud computing technology, distributed power technology, intelligent substation, intelligent self-healing distribution network technology, etc. Eventually, a "secure, interactive, and clean" smart city power grid with informatization, automation, and interactive features will be realized.

As one of the important links in the construction of smart grids, smart substations are the most important basic operating parameter collection points, management and control execution points of the power grid and the supporting points of the future smart grid. This year, the construction of the next-generation 220kV new-generation smart substation in the future city has put this smart grid demonstration project located in Changping District of Beijing into the "fast lane". As an important part of the comprehensive demonstration project of the smart grid, the station aims to build a new generation of intelligent substations characterized by the application of "integrated intelligent equipment + integrated business system" with the goal of "small footprint, low cost, and high reliability". , Saving more than 12 million yuan in project cost. At the same time, the designers built a new generation of smart substations based on the application of power electronics technology and superconducting technology around "new equipment, new materials, emerging technologies" to promote the innovative development of smart substations.

It is worth mentioning that, based on the future smart city demonstration project of the Science and Technology City, the Beijing company took the lead in the 863 project "Key Technology Research and Demonstration of Active Distribution Network". The study also started in September. After the project is implemented, the Smart Grid of the future Science and Technology City will have the ability of active adjustment, with outstanding advantages in safety, reliability, quality, efficiency, compatibility, and interaction. The power supply reliability has a capacity of 99.9999%, and the power supply voltage qualification rate exceeds 99% , Support a large number of distributed power access, plug and play, and energy interaction can also be achieved.

In addition to the smart grid construction represented by the Smart Grid Demonstration Project of the Future Science and Technology City, at present, power fiber-to-the-home pilot projects, distribution automation projects, smart community / building pilot projects, electricity information collection projects, and transmission line intelligence (unmanned Machines) inspections, IoT air-conditioning demonstration projects, grid spatial information service platform (GIS) and many other projects are still under construction in various regions of the capital.

The construction of smart cities in the capital is an important opportunity to promote the development of smart grids, and smart grids will also effectively promote smart cities. Since the launch of smart grid construction in 2009, Beijing has completed nearly 20 categories (items) of smart grid projects. It is the company's goal to ensure the construction of the smart city in the capital with higher-level, higher-level and higher-quality electric energy.

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