Journal of Shandong University(Engineering Science) ›› 2025, Vol. 55 ›› Issue (2): 28-36.doi: 10.6040/j.issn.1672-3961.0.2024.044

• Electrical Engineering—Special Issue for Smart Energy (Chaired by Prof. ZHANG Hengxu) • Previous Articles     Next Articles

Coordinated optimal scheduling of electric-hydrogen system considering hybrid energy storage in the day-ahead and intra-day stages

WANG Ruiqi1,2, LIU Jiyan1, JU Wenjie1, WANG Weishuai1, XU Wenze3, ZHANG Zhenbin3*   

  1. WANG Ruiqi1, 2, LIU Jiyan1, JU Wenjie1, WANG Weishuai1, XU Wenze3, ZHANG Zhenbin3*(1. State Grid Shandong Power Supply Company, Jinan 250001, Shandong, China;
    2. State Grid Shandong Integrated Energy Services Co., LTD., Jinan 250001, Shandong, China;
    3. School of Electrical Engineering, Shandong University, Jinan 250061, Shandong, China
  • Published:2025-04-15

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Abstract: To respond to the goal of "dual carbon" and deal with the abandonment of wind power and photovoltaic caused by the access of large-scale renewable energy, a coordinated optimal scheduling of an electric-hydrogen system(EHS)considering hybrid energy storage in the day-ahead and intra-day stages was proposed. By considering the constraints of the system and each equipment, the objective function was established to minimize the operating cost and carbon emissions of the EHS. The nonlinear constraints in the model were linearized, and the model of multi-time scale scheduling method was established. The IEEE-33 node system was used to analyze the proposed strategy and verify its effectiveness in promoting the accommodation of renewable energy and the low-carbon economic operation of the EHS. The simulation results showed that the proposed strategy could effectively improve the system's accommodation capacity of renewable energy and reduce EHS's carbon emission and operating costs.

Key words: hybrid energy storage, electric-hydrogen system, day-ahead and intra-day, economic dispatch, low-carbon operation

CLC Number: 

  • TM73
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