Operation Control Strategy of Microgrid Based on Energy Storage System

The large capacity battery energy storage system can stabilize the fluctuation of the power generated by the micro source, provide voltage and frequency reference when the control method in the islanding mode, becoming an essential component of the microgrid. According to this, researching the operation control method of energy storage system in the power grid, coordinating with the wind power system, while stabilizing the power, realiazing charge and discharge energy storage operation. According to the characteristics of traditional synchronous generator with inertia and damping, the virtual synchronous generator technology is put forward. The virtual synchronous machine control technology is applied to the converter of the energy storage equipment, realizing system voltage regulation and frequency modulation. Using simulation software constructed simulation model of wind storage integrated power generation system based on virtual synchronous generator, to verify the feasibility of the control strategy.