Journal of Shandong University(Engineering Science) ›› 2025, Vol. 55 ›› Issue (5): 78-87.doi: 10.6040/j.issn.1672-3961.0.2024.202

• Electrical Engineering—Special Issue for Smart Energy • Previous Articles    

Coordinated control strategies for energy storage and other controllable resources in power system emergencies

SUN Zhongqing1, LAI Yening1, ZHANG Jian2, CAO Xuening2, ZHANG Hengxu2*   

  1. SUN Zhongqing1, LAI Yening1, ZHANG Jian2, CAO Xuening2, ZHANG Hengxu2*(1. State Grid Electric Power Research Institute(NARI Group)Corporation, Nanjing 211106, Jiangsu, China;
    2. School of Electrical Engineering, Shandong University, Jinan 250061, Shandong, China
  • Published:2025-10-17

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Abstract: The grid-connected capacity of new energy sources with low emissions, low inertia, and high volatility was rapidly increased, significantly altering the dynamic characteristics of the power system, such as frequency response. This posed great challenges to safety and stability analysis and control. While the high proportion of wind, solar, and storage created operational challenges, opportunities for coordinated control among them were also presented. The mechanism by which energy storage improved stability was explored, considering the characteristics of different types of distributed resources and the control requirements in emergency situations. The characteristics of various controllable resources were analyzed to fully utilize the fast response characteristics of energy storage. These resources were classified based on support time, and the charging and discharging power of the energy storage system was determined, alongside adjustments to control strategies. A hierarchical coordinated operation and control strategy for controllable resources, based on the rapid adjustment of energy storage power, was proposed. The effectiveness of the proposed strategy was verified using a system with multiple types of units as an example.

Key words: energy storage units, controllable resources, emergency control, hierarchical coordinated control, load shed

CLC Number: 

  • TM712
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