China News Service Xining, December 21 (Li Jiangning, He Bingxun, Yang Jun) On the 21st, the reporter learned from the Qinghai Provincial Department of Science and Technology that the State Grid Qinghai Electric Power Company’s Electric Power Research Institute led the “large-scale new energy base to send to the power grid. The “Frequency Modulation Characteristics Analysis and Optimal Control Technology” project passed the results appraisal, and the project research results were rated as “International Leading (Highest Level)” level.
According to reports, in the appraisal of project results organized by well-known domestic experts in related fields by the Qinghai Provincial Department of Science and Technology, the appraisal expert group listened to the project’s work report, technical report, economic benefit and user report, and was reviewing relevant technical data, After serious inquiries and discussions, it is believed that the project has carried out systematic and in-depth research on the key technology of large-scale new energy base frequency modulation, and has carried out systematic and in-depth research on new energy frequency modulation technical solutions and parameter optimization, and has achieved fruitful and innovative research results. The economic and social benefits are significant. The project is highly praised as "International Leading (Highest Level)".
The project "Analysis of Frequency Modulation Characteristics and Optimal Control Technology of Transmission-end Power Grids in Large New Energy Bases" puts forward a governor parameter optimization setting method based on system frequency deviation risk assessment, which solves the problem of coordination and optimization of traditional synchronous unit speed regulation performance; The adaptive frequency modulation strategy of wind turbine rotating kinetic energy tracking effectively reduces the depth of the "second drop", and the proposed parameter coordinated optimization setting method improves the primary frequency modulation capability of the power grid.
In addition, the other results obtained during the project implementation have achieved the optimization and improvement of the frequency modulation capability, and have been widely used in various new energy stations in Qinghai Province, achieving significant economic and social benefits, and at the same time guaranteeing The safe and stable operation of the power grid provides assistance.
At present, the results of the project have entered the substantive promotion stage. According to the primary frequency modulation control strategy provided by the project, the State Grid Qinghai Electric Power Company has guided Qinghai New Energy Station to carry out primary frequency modulation function transformation and upgrades. The first batch of six frequency modulation functions in Qinghai Province has been completed. Upgrading and testing the primary frequency modulation function of more than ten new energy plants.
In the next step, it will continue to guide the second and third batch of new energy power stations in Qinghai Province to complete the transformation of primary frequency modulation functions, realize full coverage of primary frequency modulation functions of the power grid, and achieve optimal dispatch of power grid resources, so that Qinghai Power Grid will have a high proportion of new energy. Stable operation and full consumption of new energy provide technical support.
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