UHV AC-DC hybrid operation of key technical standards project

Recently, the State Grid Corporation of China led by China Southern Power Grid Corporation and other units jointly participate in the declaration of the state's key R & D project - UHV AC / DC hybrid power grid operation of key technical standards, by the National Quality Foundation of Common Technology Research and Application (NQI) National key R & D project approved the project.


State Grid Corporation takes the lead in setting up a research team with extensive standardization of scientific research and practical experience in the operation and control of power grids. It has organized nearly 200 domestic and international power industry standards and sorted out the research framework for the key technical standards for UHV AC / DC hybrid power grids in China. Ministry of Science and the various requirements, efficient and high quality to complete the declaration.


Standardization is the cornerstone of the power industry. China has promulgated more than 150 national and industrial standards in the related technical fields of power grid operation and control. However, the existing standards are mainly based on the background of traditional pure AC synchronous networks. With the rapid development of UHV power grids and large-scale continuous integration of new energy sources, the power grid structure and power structure have undergone major changes and power grid characteristics have undergone profound changes. Existing standards are difficult to fully support large-capacity DC and large-scale new energy access Safe and stable operation of UHV AC / DC hybrid power grid.


Research on Key Technical Standards for Operation of UHV AC / DC Hybrid Power Grids It belongs to the key technology research and application of NQI. It is the first series of special research projects focused on UHV power grids and large-scale new energy operation in China. The project is expected to address 30 existing national standards such as maladjustment or lack of existing standards and plans to develop 30 national standards covering the key technical fields of power network simulation analysis, relay protection, safety and stability control, etc., to meet the needs of large-capacity DC and large-scale new energy sources After entering into the simulation to improve the accuracy and efficiency of power grids to strengthen the grid defense level to enhance the rapid perception of grid status and promote the refinement of new energy control and fully absorb the demand. The research results will lead the development of UHV AC / DC hybrid power grids, promote technological progress in relevant fields, strongly support the safe and stable operation of China's major power grids and promote the large-scale and efficient use of new energy sources in China.

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