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<p>Against the backdrop of frequent extreme weather events and an increase in various types of emergencies, the emergency recovery capability of the power grid has become a core issue in power system research. The current research on emergency recovery of power systems focuses on the scheduling and optimization of internal resources, but there is insufficient integration and utilization of heterogeneous energy systems, which limits the system’s ability to recover under extreme conditions. Hydrogen energy can provide stable initial start-up power for critical loads and main power sources, providing technical support for the recovery of the power grid from “zero”, and is becoming an important means of supporting the resilience construction and emergency energy supply system of urban power grids. Therefore, this article proposes an optimized operation method for renewable energy hydrogen production systems aimed at improving the resilience of the power grid. Firstly, a power grid emergency recovery model considering the resilience enhancement of hydrogen energy system support was constructed. Secondly, in response to the highly nonlinear and coupled constraint problems in the model, a linearization approximation method is adopted to handle the nonlinear constraints, improving the solving efficiency and model convergence. Then, compare the traditional emergency recovery strategy with the emergency recovery strategy that involves hydrogen energy in enhancing resilience. The calculation results show that the resilience recovery strategy of the power grid supported by hydrogen energy proposed in this paper reduces the overall load recovery time by 3&#xa0;h and the recovery time of the top 20% of critical loads by 2&#xa0;h when dealing with extreme scenarios. Subsequently, the feasibility and effectiveness of the proposed method in urban power grid emergency recovery were verified through discussions on scalability and large-scale scenarios, economic analysis, and engineering prospects and model robustness analysis.ating the effectiveness of the proposed method in urban power grid emergency restoration.</p>

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Operation Method for Renewable Energy-Based Hydrogen Production Systems Toward Power Grid Resilience Enhancement

  • 期刊论文

  • 发表日期：

    2026年3月30日

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  • Shaolei Zong,
  • Hui Yan,
  • Li Jiang,
  • Wei Kong,
  • Yajuan Lyu,
  • Xiaoguang Chai,
  • Qiming Zhang

摘要

Against the backdrop of frequent extreme weather events and an increase in various types of emergencies, the emergency recovery capability of the power grid has become a core issue in power system research. The current research on emergency recovery of power systems focuses on the scheduling and optimization of internal resources, but there is insufficient integration and utilization of heterogeneous energy systems, which limits the system’s ability to recover under extreme conditions. Hydrogen energy can provide stable initial start-up power for critical loads and main power sources, providing technical support for the recovery of the power grid from “zero”, and is becoming an important means of supporting the resilience construction and emergency energy supply system of urban power grids. Therefore, this article proposes an optimized operation method for renewable energy hydrogen production systems aimed at improving the resilience of the power grid. Firstly, a power grid emergency recovery model considering the resilience enhancement of hydrogen energy system support was constructed. Secondly, in response to the highly nonlinear and coupled constraint problems in the model, a linearization approximation method is adopted to handle the nonlinear constraints, improving the solving efficiency and model convergence. Then, compare the traditional emergency recovery strategy with the emergency recovery strategy that involves hydrogen energy in enhancing resilience. The calculation results show that the resilience recovery strategy of the power grid supported by hydrogen energy proposed in this paper reduces the overall load recovery time by 3 h and the recovery time of the top 20% of critical loads by 2 h when dealing with extreme scenarios. Subsequently, the feasibility and effectiveness of the proposed method in urban power grid emergency recovery were verified through discussions on scalability and large-scale scenarios, economic analysis, and engineering prospects and model robustness analysis.ating the effectiveness of the proposed method in urban power grid emergency restoration.