Abstract: With the increasing penetration of renewable energy in the power system, wind power, as an important part of clean energy, plays an increasingly vital role in grid frequency regulation. However, due to the volatility and intermittency of wind power, traditional grid frequency modulation strategies face new challenges. In response to this issue, this paper proposes a primary frequency modulation control technology for wind-storage integration based on middle-layer control, aiming to coordinate wind turbine units and energy storage systems to jointly participate in grid frequency regulation, thereby enhancing the stability and reliability of the power system. The paper first analyzes the strategies and effects of virtual synchronous modulation control of energy storage, then delves into the research of wind-storage joint primary frequency modulation control technology, and proposes an inertial response adaptive control method based on variable coefficient bang-bang control, achieving optimized frequency modulation power allocation for wind farms and energy storage systems during grid frequency changes.

Key words: Wind-Storage Integration, Primary Frequency Modulation, Virtual Synchronous Frequency Modulation Control, Inertial Response Adaptability, Optimized Modulation Power Allocation