New energy generation is characterized by intermittensity, volatility and unpredictability, and large-scale access will inevitably increase the difficulty of power grid regulation, and may cause a large number of photosynthetic and wind abandoning problems. Adding energy storage system in the new energy generation side can solve these problems well, storing the power that cannot be consumed and releasing it in the period of insufficient power generation or peak power consumption, for the purpose of smoothing power generation, making up for the defects of instability in new energy generation and avoiding waste.