North Star Distribution Power Grid News: "State Grid Corporation of China is a technology intensive enterprise, and the development of the power grid is related to the lifeline of the national economy and national energy security. The core technology of the power grid must not be controlled by others. Having independent technological innovation capabilities can enable enterprises to take the initiative in competition and seize the commanding heights of the world's power grid development."
Technology is the foundation of national strength, and innovation is the soul of national progress. Technological innovation has become a key support for improving comprehensive national strength and core competitiveness. The Central Committee of the Communist Party of China and the State Council attach great importance to scientific and technological innovation work, and firmly promote the innovation driven strategy. The Fifth Plenary Session of the 18th Central Committee of the Communist Party of China proposed that we must firmly establish and effectively implement the development concept of innovation, coordination, green, openness, and sharing, place innovation at the core of the overall national development, and emphasize the need to continuously promote innovation in various aspects such as theoretical innovation, institutional innovation, scientific and technological innovation, and cultural innovation, and give full play to the leading role of scientific and technological innovation in comprehensive innovation.
For many years, the company has focused on the strategic goal of building a world-class power grid and an international first-class enterprise, and has always regarded technological progress as the primary driving force for the development of the company and the power grid. It firmly regards improving independent innovation capabilities as the core element for transforming the development mode of the company and the power grid, and enhancing the company's competitiveness. Under the guidance of the "Top Four" strategy, the company has established a scientific and technological innovation organizational system that includes directly affiliated scientific research and industrial units, provincial scientific research institutions, overseas research and development institutions, and external scientific and technological resources. It continuously strengthens resource allocation, enhances achievement transformation and application, strengthens talent cultivation and incentives, and achieves fruitful results in scientific and technological innovation. It has achieved a series of major technological breakthroughs in key fields such as ultra-high voltage, large power grid, new energy, and smart grid. The gradual improvement of the technological innovation system has laid a solid foundation for the enhancement of the company's technological innovation capabilities. During the 12th Five Year Plan period, the company has repeatedly achieved excellent results in technological innovation, creating multiple world firsts in various technological fields, and achieving China's creation and leadership. In terms of ultra-high voltage technology, the key technology, complete equipment and engineering application of ultra-high voltage AC transmission have won the special prize of the National Science and Technology Progress Award, and multiple technologies such as key technology of high-voltage DC circuit breakers and major special research on large power grid planning and operation control technology have achieved breakthroughs.
In terms of smart grids, the Zhejiang Zhoushan Five Terminal Flexible DC and Xiamen Flexible DC Transmission Technology Demonstration Projects put into operation can be regarded as a world model led by China. In terms of standard formulation, the company has greatly enhanced its voice in the international electrical market, and has made outstanding contributions to the construction of standard systems in areas such as ultra-high voltage, smart grids, new energy grid integration, and asset lifecycle.
Innovation drives engineering, and engineering nurtures innovation. During the 12th Five Year Plan period, the company improved the mechanism for transforming scientific and technological achievements, built an internal and external transformation platform for scientific and technological achievements based on the technology market, raised awareness of scientific and technological achievements transformation, deepened the application of innovative achievements in engineering, and fully unleashed the energy of the "first productivity". A series of equipment such as 1250 square millimeter large-section wires, ultra-high voltage autotransformers, and ultra-high voltage DC electronic transformers have been successfully applied in engineering, promoting continuous innovation and upgrading of ultra-high voltage projects. The innovation and progress of ultra-high voltage technology not only gradually change the development mode of energy, electricity, and power grid, but also effectively promote the adjustment of national economic structure and drive the upgrading of equipment manufacturing industry. Taking Xuji Group as an example, its over 60 new products rely on engineering construction, all of which have reached international leading levels, and over 20 products and technologies have become world leaders.
Technology supports development, innovation leads the future. Years of experience and achievements in innovation practice have shown that technology innovation with enterprises as the main body has played an irreplaceable supporting and leading role in enterprise transformation, economic development, social progress, and people's livelihood improvement.
Looking back, it was through innovation that every step taken by a company amazed the world. Looking ahead to the future, with the vitality and determination to overcome difficulties and challenges, the innovative blueprint written by the company can be regarded as a leader in the world energy development pattern. State Grid Corporation of China is moving forward with a positive attitude and abundant vitality, serving the tide of national innovation and development, and seizing the technological peak of the world power grid. 1. Basic R&D capabilities
At present, the company has a total of 7 academicians, 146 personnel who enjoy special government allowances from the State Council, 23 national level candidates for the "Ten Million Talents Project", and 25 experts introduced for the "Thousand Talents Plan". The company has established 53 technology research and development teams to address major issues that urgently need to be addressed in the development of the company and the power grid. Talent team building: The company has formed a three-level R&D experiment capability with distinctive characteristics of the country, the company and all units, and has 18 national laboratories (including 6 State Key Laboratory), 70 company level laboratories, and more than 400 unit level laboratories, covering the core technology fields of power network planning, construction, operation and management. Test and detection capability: The company has built an ultra-high voltage test and research system and a large power grid security service system with the "four bases and two centers" as the core, laying a solid foundation for carrying out research on a strong smart grid and the global energy Internet. 2. Technological Innovation System
In accordance with the overall requirements of strengthening the position of enterprises as the main body of scientific and technological innovation in the country, the company aims to support the construction of smart grids, promote strategic adjustment of energy structure, lead the operation and equipment technology of the world power grid, and create an internationally first-class enterprise scientific and technological innovation system with scientific positioning, clear division of labor, collaborative production and research, and efficient operation. At present, the company has preliminarily established a scientific and technological innovation system with directly affiliated scientific research units, directly affiliated industrial units, provincial scientific research units, and overseas research and development institutions as the main body, external scientific and technological forces as the synergy, clear hierarchy and division of labor, which is conducive to leveraging their respective advantages and facilitating business collaboration. The National Wind and Solar Energy Storage and Transmission Demonstration Project is located in Zhangbei County, Zhangjiakou City, Hebei Province, China. It is a national level 10 million kilowatt wind power base with abundant wind and solar resources, and is typical and representative in solving the problem of large-scale new energy technology acceptance in the power grid. The first phase of the demonstration project includes the construction of 100000 kilowatts of wind power, 40000 kilowatts of photovoltaic power generation, and 20000 kilowatts of energy storage. It also includes the construction of a 220 kV intelligent substation, covering a total area of 2568 acres with a total investment of 3.226 billion yuan.
The National Wind and Solar Energy Storage and Transmission Demonstration Project is a new energy demonstration project that integrates wind power, photovoltaic power generation, energy storage, and intelligent transmission. It is the first key project of the National Golden Sun Demonstration Project, a major project of the National Science and Technology Support Plan, and a key industry support project in Hebei Province. It is also one of the first pilot projects of the State Grid Corporation of China's strong smart grid. At present, the National Wind and Solar Energy Storage and Transmission Demonstration Project is a multi type and user-friendly wind farm in China, the largest power regulation photovoltaic power station in China, the world's largest multi type chemical energy storage power station, and also the most intelligent and diverse new energy demonstration project in terms of operation level. Xiamen Flexible Straight Engineering
The Fujian Xiamen Flexible DC Project was approved in December 2013 and construction began on July 21, 2014. The project has a rated voltage of ± 320 kV, a rated current of 1600 A, and a transmission capacity of 1 million kilowatts. Two new ± 320 kV converter stations will be built outside the island, including the Puyuan converter station (transmitter) and the Ludao converter station (receiver), as well as the ± 320 kV Pengcuo Lake flexible DC line project. The total length of the DC line is 10.7 kilometers, all of which are land cables, using 1800 square millimeters of large cross-section insulated DC cables, connected to the two converter stations through the Xiamen Xiang'an underwater tunnel.
The Xiamen Flexible DC Project is a highly innovative and leading system engineering. This project is based on the application of the ± 200 kV flexible DC project in Zhoushan, Zhejiang. It achieves a leap from the DC voltage level of ± 200 kV to the world's first ± 320 kV, and optimizes the connection from pseudo bipolar to true bipolar. It has become the world's highest voltage level and largest transmission capacity flexible DC project.
The completion and operation of the Xiamen Flexible Direct Transmission Project marks that China has fully mastered the key technologies such as the design, equipment manufacturing, engineering construction commissioning, and operation of high-voltage and large capacity flexible DC transmission projects, has the ability to complete the project, and has achieved the creation and leadership of China. It is of great significance to further improve China's DC transmission technology level and power equipment manufacturing level, lays a solid foundation for opening up the international flexible DC project market, provides replicable and promotable experience for the construction of higher and larger transmission capacity flexible DC transmission projects, and also provides a pioneering practice for the construction of the global energy Internet. Zhoushan Multi end Flexible Straight Project
The Zhejiang Zhoushan ± 200 kV Five Terminal Flexible DC Transmission Technology Demonstration Project is currently the world's highest voltage level, most terminals, and largest single terminal capacity multi terminal flexible DC transmission project. The project was officially put into operation on July 4, 2014. The project will construct 5 converter stations in Dinghai, Daishan, Qushan, Sijiao, and Yangshan, with a total capacity of 1 million kilowatts and a maximum converter station capacity of 400000 kilowatts; Newly built ± 200 kV DC transmission lines with a total length of 280.8 kilometers (positive and negative poles), including 258 kilometers of submarine cables and 22.8 kilometers of land cables. Since the project was put into operation, the cumulative transmitted electricity has reached nearly 430 million kilowatt hours, with a maximum transmitted active power of 106000 kilowatts and reactive power of 72000 kilowatts, and a cumulative consumption of 161.868 million kilowatt hours of wind power.
The completion of the Zhoushan Five Terminal Flexible DC Project has improved the overall technological content of China's power grid, enhanced the international influence and competitiveness of China's DC transmission industry, greatly enhanced the grid structure of Zhoushan Power Grid, effectively promoted the consumption of marine new energy such as offshore wind power, achieved flexible conversion and mutual support of electricity between islands in the northern part of Zhoushan, and provided strong energy support for the development of the first national level marine new area - Zhoushan Islands New Area. At the same time, this project also plays a good demonstration role in the large-scale promotion of flexible DC and ocean transmission technologies in China. The Nanjing Unified Power Flow Controller Demonstration Project (hereinafter referred to as the Nanjing UPFC Project) is the first UPFC project in China and the world's first UPFC project based on modular multilevel converter (MMC) technology. This project marks China as the third country in the world, after the United States and South Korea, to fully master this key technology.
The domestically produced UPFC device for engineering applications adopts the world's most advanced modular multilevel converter (MMC) technology (similar devices in the United States and South Korea have not yet adopted it), which has outstanding advantages such as optimizing control of multi loop power over a large range, low investment costs and operating losses, and high operating efficiency. Its technical performance ranks at the forefront of the world. By installing this device, the demonstration project can achieve precise control of power transmission in the western core area of Nanjing city. Without renovating the power grid, the power supply capacity of the western ring network in Nanjing can be increased by 30% (500000 to 600000 kilowatts), and the annual power supply can be increased by 250 million kilowatt hours. This is equivalent to investing in the construction of a new 220 kV transmission channel in the urban core area, saving 359 acres of land, and providing an effective example for the development potential of urban power grids in developed eastern regions of China under existing conditions. With the large-scale promotion and application of this technology, it will provide new ideas and choices for the development of urban power grids in China. 4 Award winning achievements
During the 12th Five Year Plan period, the company has won a total of 19 national science and technology awards, including 1 special prize and 2 first prizes; Received 46 Chinese patent awards, including 3 gold awards; Received two first prizes for China Standard Innovation Contribution Award; Received 221 China Electric Power Science and Technology Awards, including 27 first prizes; Received 773 provincial and ministerial level scientific and technological awards, including 59 first prizes. The Footprints of Technological Innovation in the 12th Five Year Plan
2011
The 1000 kV Jindongnan Nanyang Jingmen ultra-high voltage AC test demonstration project has won the highest award in China's industrial field, the China Industrial Award.
The research and engineering application of ± 800 kV ultra-high voltage direct current transmission technology has won the special prize of the company's Science and Technology Progress Award.
2012

The key technology, complete equipment, and engineering application of ultra-high voltage AC transmission have won the Special Prize of the National Science and Technology Progress Award.
The overhead line obstacle cleaning and detection robot won the second prize of the National Science and Technology Progress Award.
2013
The key technologies and complete equipment for preventing and controlling large-scale freezing disasters in the power grid have won the first prize of the National Science and Technology Progress Award.
64 standards including overvoltage protection and insulation coordination guidelines for ± 800 kV ultra-high voltage DC converter stations have won the first prize of China's standard innovation contribution.
The State Grid Shandong Electric Power Intelligent Transmission Inspection Robot Project has won the Chinese Patent Appearance Design Gold Award. The key technology, equipment development, and engineering application project of ± 800 kV ultra high capacity ultra-high voltage direct current transmission has won the first prize of the China Electric Power Science and Technology Award.
2014
The State Grid Smart Grid Innovation Project won the first prize of the 2014 National Science and Technology Progress Award. The innovation and application of live working technology and tools for ± 660kV DC overhead transmission lines won the second prize of the National Science and Technology Progress Award in 2014.
The Qinghai Tibet Interconnection Project won the 3rd China Industrial Award. 39 standards, including the functional specifications of smart energy meters, have won the first prize for China's standard innovation contribution.

2015
● Five laboratories of the company system were selected as State Key Laboratory.
The Nanjing 220 kV West Ring Network Unified Power Flow Controller (UPFC) project has been put into operation.
The Xiamen ± 320 kV Flexible DC Transmission Technology Demonstration Project has been put into operation.