Research on the Engineering Application of Inertia Response in Wind Farm

With the continuous development of China's new energy industry, the proportion of new energy generation dominated by wind power is gradually increasing, while the proportion of thermal power generation dominated by fossil fuels is gradually decreasing[1]. In some northern provinces, renewable energy generation, mainly based on wind power, has become the main source of electricity locally. Due to the fact that wind turbines are connected to the grid through power electronic devices, they cannot sense the frequency changes of the AC system and cannot provide inertia support to the system like traditional generator sets, resulting in a decrease in the system's ability to resist frequency disturbances[2]. In this context, this article studies the basic principles and technical requirements of wind farm inertia response, and proposes a scheme to achieve wind turbine inertia response function on the basis of the existing primary frequency regulation system in the wind farm. The feasibility and effectiveness of this scheme were verified through on-site testing at a wind farm in Shandong Province.