Energy Storage Science and Technology ›› 2024, Vol. 13 ›› Issue (8): 2713-2725.doi: 10.19799/j.cnki.2095-4239.2024.0165

• Energy Storage System and Engineering • Previous Articles     Next Articles

Research on capacity optimization configuration and operation strategy of energy storage system considering wind and solar consumption

Zhanwei LI1(), Dongfang FAN1, Chao ZENG2, Wenqian HE2, Jin HE2   

  1. 1.Central South Electric Power Test Research Institute of China Datang Corporation Science and Technology Research Institute Limited, Zhengzhou 450000, Henan, China
    2.Leiyang Branch of Datang Huayin Electric Power Company Limited, Leiyang 421800, Hunan, China
  • Received:2024-02-29 Revised:2024-03-27 Online:2024-08-28 Published:2024-08-15
  • Contact: Zhanwei LI E-mail:znylhl2023@163.com

Abstract:

Under the background of dual carbon, the comprehensive consideration of energy storage system capacity allocation method and operation strategy can help to improve the rate of wind and solar renewable energy consumption and guarantee the economic and safe operation of the system. In the planning stage of the energy storage system, this paper proposes an optimization configuration strategy for the energy storage system that takes into account operating costs for different wind-landscape collaborative consumption scenarios. Firstly, an objective function is established to minimize operating costs, including wind and light abandonment, as well as energy storage investment costs. Secondly, all system constraints are considered. Finally, the energy storage capacity is planned for different scenarios to reduce wind and solar abandonment and increase renewable energy absorption. During the energy storage system's operation stage, a double-layer operation strategy is proposed to address the poor state of charge (SOC) balance and implementation difficulties. In the upper layer, the optimal battery subsystem for charging and discharging is selected based on the SOC and charging/discharging capacity of the energy storage battery subsystem. In the lower layer, power is optimized with the goal of achieving SOC balance for the battery unit. Based on the AOE control configuration, the strategy is implemented by creating a configuration file using Excel. It has the advantages of low difficulty of use, simple writing, intuitive control process, high calculation and operation efficiency, which is of great significance for slowing down the aging of the battery, reducing the difficulty of realizing the operation strategy of the user, and effectively consuming the wind-scenery renewable energy.

Key words: energy storage system, capacity optimization allocation, operation strategy, SOC balance, AOE

CLC Number: