Control Strategy and Adaptability Assessment of Energy Grid Rapid Frequency Modulation Based on Different Types of Dual-Battery Energy Storage

According to the secondary Frequency modulation (FM) scheme of energy grid, the integrated control strategy of battery energy storage is proposed, and the adaptability of various battery is evaluated to improve the economy of energy grid. Firstly, the secondary FM model of battery energy-conventional unit participating in the energy grid is constructed to solve the problem of slow frequency response of conventional unit. The energy storage (ES) is then split into two components with distinct charging and discharging properties for fusion, extending the battery's useful life. Finally, through the evaluation of battery life and operating cost, the optimal battery selection under different ES operating modes was obtained.