（1 Nengxing Electricity Sales Co., Ltd. of Xingfa Group, Yichang 443700, China;
2 State Grid Hubei Electric Power Co., Ltd. Yichang Power Supply Company, Yichang 443000, China）
Abstract: Distributed energy storage and demand response technologies are important means to promote the consumption of new energy, and they have the advantages of peak regulation, balance, and flexibility. The carbon trading market and the penalty mechanism for the abandonment of new energy are introduced. Taking the energy storage cost, the operation cost of the distribution network, the network loss cost, the carbon trading cost, and the cost of new energy abandonment as the objective functions, an optimized allocation model for distributed energy storage is established. Considering the scheduling problems of each unit in the system, an operation strategy for the linkage between distributed energy storage and demand response is proposed, employing an improved bat algorithm to solve the problem. The case study shows that under the combined action of energy storage and demand response, the annual total cost of the distribution network is effectively reduced, the utilization rate of new energy is increased, the voltage quality and network loss of the power grid are improved, and the reliability and stability of the distribution network are ensured.
Key words: distribution network; distributed energy storage system; demand response technology; improved bat algorithm; optimal allocation;carbon trading mechanism
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