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Rapid Resilience Assessment and Weak Link Analysis of Power Systems Considering Uncertainties of Typhoon

Author

Listed:
  • Wenqing Ma

    (State Key Laboratory of Power Transmission Equipment Technology, Chongqing University, Chongqing 400044, China)

  • Xiaofu Xiong

    (State Key Laboratory of Power Transmission Equipment Technology, Chongqing University, Chongqing 400044, China)

  • Jian Wang

    (State Key Laboratory of Power Transmission Equipment Technology, Chongqing University, Chongqing 400044, China)

Abstract

The secure operation of the renewable-integrated power system is affected by extreme weather conditions such as typhoons. In order to meet the operational requirements of the system, it is necessary to dynamically evaluate the resilience of the renewable-integrated power systems based on meteorological forecast information to guide operators to make reasonable risk prevention and control decisions. A rapid assessment method for power system resilience is proposed to address the uncertainty of extreme weather caused by typhoons. First, with a focus on the impact of typhoon disasters on power system components, corresponding failure probability models are constructed by taking typhoon meteorological forecast information as input and considering the uncertainty of typhoon meteorological forecast. Error probability circles and average absolute errors of intensity forecasts are included in the sampling of typhoon scenarios. Second, for the resilience assessment process, the impact increment method is used to reduce the dimensionality of multiple fault state analysis in the power system, and resilience indexes are calculated by screening the contingency set based on depth-first traversal through a backtracking algorithm. The weak links in the power system are identified through sensitivity analysis of load loss. Finally, the effectiveness of the proposed method is verified using the modified IEEE RTS-79 power system.

Suggested Citation

  • Wenqing Ma & Xiaofu Xiong & Jian Wang, 2025. "Rapid Resilience Assessment and Weak Link Analysis of Power Systems Considering Uncertainties of Typhoon," Energies, MDPI, vol. 18(7), pages 1-20, March.
    • Handle: RePEc:gam:jeners:v:18:y:2025:i:7:p:1731-:d:1624446
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