Aiming at the problem of power imbalance caused by the randomness of new energy generation output and the uncertainty of new generation load access to distribution network represented by new energy vehicles，a power feedback control strategy based on SNOP with energy storage was proposed.This control strategy takes the frequency difference caused by the active power imbalance of the AC system as the feedback quantity，and controls the active power transmission of the converter through the power current loop，so as to realize the realtime control of the active power flow according to the change of the active load.At the same time，the addition of energy storage makes the SNOP highly integrated into an energy transfer device with energy storage function. In a certain range，the power fluctuation can be alleviated and the scheduling ability of SNOP can be increased.Then，a flexible interconnection simulation model of SNOP with energy storage was established by DigSILENT / PowerFactory，and the effectiveness of the control strategy was verified by switching the active load.The simulation results show that the control strategy can make full use of the energy storage to coordinate the power balance between feeders in real time.