Aiming at the impact of the continuous increase of new energy generation in the power system, its imbalance and the increasing diversity of user loads on the power grid, a dual-transformer-based low-voltage bus side load parallel system is proposed. The two-way adjustment capability of Soft Normally Open Points (SNOP) is used to interconnect the low-voltage power consumption sides of the two transformers in the distribution network, replacing the traditional tie switch, improving the power quality and system reliability. On the basis of the back-to back Voltage Source Converter(VSC) circuit, the energy storage system is added as the topology of the SNOP, which improves the reliability of the system and ensures the safety and reliability of energy exchange under AC-DC AC conversion. A mathematical model is established according to its topology structure, the control strategy under the double closed-loop control structure is studied, and its control strategy is comprehensively considered in combination with the energy storage unit to ensure the compatibility of the energy storage unit. Finally, MATLAB simulation is used to verify the correctness and reliability of the energy storage SNOP system theory under the dual closed-loop control strategy. The test results show that the energy storage SNOP can well interconnect the loads on both sides of the transformer to relieve the heavy load.