Aiming at the problem of high local node voltage caused by high-penetration distributed new energy sources in the low-voltage distribution network

it is proposed to consider the integration of virtual energy storage of air-conditioning groups into the distribution network voltage and reactive power optimization control model. Firstly

the electric heating virtual energy storage based on the heat storage characteristics of the building is modeled. This model takes the daily operating cost of the distribution network and the minimum voltage deviation as the objective function. A multi-objective fuzzy programming model is used to reasonably control the output power of distributed energy

energy storage batteries

SVG and the upper-level grid in the distribution network. Finally

the southern summer system operation scenario is taken as an example to conduct a simulation experiment on the control system.Through the simulation of IEEE 33 system

the results show that the low-voltage distribution network system considering virtual energy storage has a good effect on maintaining the comfort of the body in the building while maintaining voltage stability

reducing the number and depth of charging and discharging of energy storage batteries

and reducing the daily operating costs of the distribution network.