Recently, the wind power frequency modulation system developed by NR has completed the commissioning and performance verification test in the CGN Daishan 516MW offshore wind farm. The test results show that the primary frequency modulation performance of the system is excellent. The successful application indicates that NR frequency modulation technology has taken another step forward.
Primary frequency modulation of renewable energy is one of the effective means to maintain the frequency stability of power systems and is an important part of ensuring the safe and stable operation of the power grid. Offshore wind power has a large installed capacity and strong power fluctuation, which has a great impact on the frequency stability of the power system and requires high reliability of the frequency modulation system.
Frequency modulation of renewable energy
The offshore booster station and onshore switchyard are located far away
The offshore booster station and onshore switchyard are located far away. Through multiple communication links, the traditional secondary frequency modulation regulation speed is slow and cannot meet the needs of fast frequency regulation.
In order to solve the above problems, based on the research results accumulated for many years, NR took the lead in putting forward the dual machine redundancy mode of primary frequency modulation of renewable energy, supplemented by the dual power supply, multi-measurement, and other means, fully considering the timing cooperation of various communication links, ensuring the rapid switching of main and standby machines under various working conditions, and fully meeting the high-reliability requirements of offshore wind power frequency modulation.
Expansion of renewable energy
At the same time, NR actively coordinated and promoted the optimization and upgrading of control network architecture, improved control algorithms, reduced the primary frequency modulation time to 15%, greatly improved the active regulation capability of offshore wind farms, alleviated the problem of frequency stability caused by the expansion of renewable energy installation scale, and ensured the safe and reliable operation of latest power systems.
In order to solve the problems caused by the continuous expansion of the installed scale of renewable energy to the frequency stability of the power grid and contribute to the successful realization of the carbon neutral goal. NR will continue to give full play to its technical advantages and continue to optimize on the basis of the successful application of the primary frequency modulation system of offshore wind farms, so as to contribute more to the development of advanced power systems around the world.
